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CT 82-12; CARLSBAD HIGHLAND; HYDROLOGY STUDY; 1987-12-10
I JiYO"wL06Y ,5TUQY ,- QqR~O HlGh'm#,t;>!3 , ,q 101 50 I /00 Yei9,R' HYO!<'Ot..06Y STUPY /../RS ;;JoM€" RJR. cY9.eLSBn:'O H/6Ht.rJI/?l5. mE CO/-f;::vr&? (/Se£) ,THC' /983 91,,(./ O/cCiO IA/Ta./S/ TY -Ou.ef1T101-1 I-/ESI6A1 Cl-/RRT h1N.o THe SI?A/ PIC'60 COUNtY ue8~N /?/?E"t:;' Ol/cRLh'IJ.o TlHc Or FtaAf CURI/e To oerE;<HINc mE 7C.. IN/rl;:?L ;q.,vl1t.Y.SI.5 AIRS ,RESTR/CT€O m o..vE LOT; 0I.5c'#rl/?6e A/h'5 THeN C/9R.eIEP ,t:?tOA/6 hi sr/?eE"r 6UrreK TO"q ..sreteH O~#/. Olscrlt:?E6c.5 A1NP rR;'-1VC'L r/ff65 A/eRE )?PPt7? r:1t.o1V6 t74'e W19Y. "t./HeN 2 SJ2:).R./"-'1 .oL?BI/t.L5 HeET,·A {Jo/Vrt..UEA!c£ .,. ,,;t;?csuc..reO,eqNP THE Sra.el"1 O~h'/t</ WI7ft' {HE • t;/? .sOUTh' .£l ;:; ;:; J3 8 /3 /3 () tJ e G z I B,t:?RA/c.5 o-PRNE5 I BH,'l?1/c5 ;.5'r9,RN'cS TUt;,t:C/: 7VCKcR ·'~~a .-y'( a~/-? /9-/-1 I T"q8c.c m oeJ25ertWc CC/& /N'(.cr SIZ.es 3T. SrR. ?lr4Z.t7E 2/1-45.70 yO~6ZZ6 I /O~6/.73 i/7~O /7f"OO , i 1/0-1-57.66 , I 1101--5882 i iZI-rCJ9 i /5-1-39 i (or8Z ~t:?r8Z. ! I \147'-56 i3'~94 ! ! !/1r482 I :32-r02 135-f?9.~5 I kr:rr4z.?2 56r85 /Sr86·66 /47' 7/' 2. 2. VOr77 f 3CJ -f6.J' I 39r63 I I 1271-..34 Z7.f.54 SUN? ("7. ) 97,' SLOP£" (.88 I v,ae j 1 4,00 ! 400 ,/.a? ;'CXJ :/.CV /.00 I !Z.oo i 12.00 ! , 15.zo : (CFS) Q 17.5 ~/Z7 I 41 ,e.8 .3.3 3.3 14.4 16.Z ,'7-6 3,7 , 12. 7 .5.9 ,9.3 i ;C?z I ~5.5 i I l;.5 I I J,h 2.4 .f.4 /(),2 :7.2 /4.2. ~ Q=-a7L(aT'-Y) (,cr.) .DEPTH 10,30 10.45 bS'5 I :0.2 i , , ,0,33 a.:J$ ,0.47 CJJ8 ,Ot:l5 ! :OZ~ I i0,36 ! 10.30 I r 35 10.3S '0.41 I ,,0.27 I 0,27 1::;.40 b.4o I ,0.4 0..36 ~3~ 0.35 04/1 - 'L 3.9'-51 /.5:21-14/ &:31 -9/ 1:5. 5 1-14 / 45~-5" ~' .&:" .3. c.. -....., 13.8"-5" I , i 3~81-5' I //3.9' -14' I 1/7.4 '-/8" 8.4~ ?/ ;38/ -.5" 1.3. '7 ~ 14. I 6.9 -7/ 10.3"-//' /(}.Z'-/I' :!.5.9"-16 ' 431 -,5' .4.4'~5' Z.SI_S' Z.$'-5/ 10.6 '-11/ 78 /-8' )4,/-/5' , / G·4-7 /45'-/5' -I W 0- S (f) ~ • W W 0:: ~ (f) lL 0 ~ 0 • 2% 20 -t--'-i--_ ... f-. -j' .... ; 18-7 ; .. j. I· . i 16 _ ; ,. :r-1r---...l i' . j" 14-· I _. ~ , : IZ-.. ~ .... i ,-.~. . i,l 10 _L. ..! ....... ! ...... ! , I 9- 8-, 7- 6- :;- 3-, 2-" 1.8-i 0.5-' , 0.4-: I 2 r-1.5'-1 _ n: .0175 t:.:=t l ---,.-,--2% ~ 0.13 t 3 4 5 6 1 8 9 10 DISCHARGE (C. F. S.) EXAMPLE: RESIDENTIAL STREET ONE SIDE ONLY ! .. .. : ••• 1 I I • I , 'f' · .. t .. "f ""1 .... I 20 30 40 50 Given: Q = 10 S:: 2.5 % Chart gives: Depth = 0.4, Velocity = 4.4 f.p.s . SAN DIEGO COUNTY DEPARTMENT oF' SPE;CIAL DISTRICT SERVICES DE SI G N MAN U A L APPROVED~/;I,JI~ DATE GUTTEH AND ROADWAY DISCHARGE -VELOCITY CHART APPENDIX X-D I CITY OF CARLSBAD CARLSBAD HIGHLANDS HYDROLOGY STUDY 10-YEAR '. HYDROLOGY STUDY • -: ;' .' • vv.o. 270 -11·0 "7 ( •. .. Directions for Application: 1) From precipitation maps determine 6 hr. and 24 hr. amounts for the selected frequency. These maps are printed in the County Hydrology Manual (10, 50 and 100 yr. maps included in the So Design and Procedure ~1anual). 2) Adjust 6 hr. precipitation (if necessary) so that it is \'1ithin the range of 45% to 65% of the 24 hr. precipitation. (Mot nrrlicab1e to Desert) 1 3) Plot 6 hr. precipitation on the right side of the chart. Ora",/ a line through the point parallel to.the plotted lines. '10 yr. * 3./ , P6 = 2B... %* P24 -t-I-t-H-IH++-R-+FHf4+I-I!-I"i' +1-' IW++! • .•.. I 2) Ad.; us ted '* .. ~ .... --- - p = (.8 -, 6 .. :: -: ... : . .' . :. -.. ' .. ... .. .. . '" ~ .t=!=t=J=t::t:l . . ,,",I-+to :+t: +t .. t+~1 f#:. HHHl Imlmlt:::t::t:±:ta:t~ ><::t •••••••• ···1 •• _ ttl2 -.... ef H .' X .. -f-! -1-1-H-I-H-I+-l -H-I-I-I+t--~+· ~ I_J_I_I_I_I_·I: .... _ .•.•• 11111111-1 I I 1 I I-H-I+I-H-H··· ~t-+-!-I-I-~+I-I-I-I-J+I-·H+l-l IIIII-H-H-H-H-I-H-H-l-l-lml-I-I···· ~'1 t-11-t1-111ttltl}tttlHflttltllllfl1tmttlltllHIHIIIHlIIIlIH-tlllll ttttttJll11l\11ll1\ I ~ 10 15 20 Minutes 30 40 50' 1 Duration 2 Hours 3 4 5 6 3) t = c 4) I = min. , _in/hr. *Not Applicable to Desert Region ... APPENDIX XI IV-A-14 Revised 1/85 ~======================================================~~==~=~~============= RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAG~ . ne-F E~r·E·)nc:e: !.::){~I\I D I EC3D COUNT'V FLOOD CDI·'·I··I·HDI.... D I~:;Tn I CT I ~,,~~.=====~.=~.======,,=="'===,,::::~::::=:::::~:::=:::~::~=================,,======= «««««««««««««««««««»»»»»»»»»»»»»»»»»»» (C) CDpyr·it;;.ltlt t9El2, 19D6 {:~d\/anced Engin(?et""int;;J SDftllJa! .. ···E·~ cr)r:::!.::;] Especially prepared for~ «««««««««««««««««««»»»»»»»»»»»»»»»»»»» **********DESCRIPTIDN OF RESULTS******************************************** .* C(.:lRLm:~(.:ID H I f:3HI..J~I\IDS .... 10 "{EPlH 1··IYDHDLDC3Y STUDY 1:· :1. 2···1. (l .... t:l7 'r-:-**************************************************************************** ---------------------------------------------------------------------------- USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFDHMATION~ ----.------------------------------------~----------------------------------- • 1 t-78~5 Sril\1 D I EC-30 HAI\IU('~L eH I 'fER 1(.1 • USER SPECIFIED STORM EVENT (YEAR) -10.00 6-HDUH DURATION PRECIPITATION (INCHES) = 1.800 SPECIFIED MINIMUM PIPE SIZECINCH) = 18.00 SPECIFIED PERCENT dF GRADIENTS(DECIM~L) TO USE FOR FRICTION SLOPE = .85 «««««««««««««««««««»»»»»»»»»»»»»»»»»»» Advanced Engineering Software [AESJ SERIAL No. 107301 RELEASE DATE~ 4/22/86 «««««««««««««««««««»»»»»»»»»»»»»»»»»»» **************************************************************************** FLOW PROCESS FROM NODE 1 . 00 TO 1\IDDE 2 .. 00 IB CODE """ -----------_._----------------------------------------~---------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ======================================================~================~==== SD IL. CI..Jif:~::3I F I Cr-H I DN I S It D It SINGLE FnHILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH (FEET) -100.00 UPSTREAM ELEVATION = 342.00 DDWNSTREAM ELEVATION = 340.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) -8 .. 299 10 YEAR RAINFALL INTENSITY(INCH/HOUR1 = 3.420 SUBAREA RUNOFF (CFS) -.38 TOTAL. f.."iHF::{-\ (ACF~E~) :::: .20·r 0 ftlL. F:t..ll\fOFF (C:r;'f:)) ... " '.:::;~;: . I • • **************************************************************************** FLOW PROCESS FROM NOD~ 3. ()O I!3 CDDE ::: ----------------------------------------------------------~----------------- »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< =====================~=====================================~================ UPSTREAM ELEVATION = 340.00 DOWNSTREAM ELEVATION = 330.00 STREET LENGTHCFEET) = 430.00 CURB HEIGTHCINCHES) = 6. STREET HAlFWIDTHCFEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVElTIME COMPUTED USING MEAN FLOW(CFS) -3.28 STREET FLOWDEPTHCFEET) = .26 HALFSTREET FLOODWIDTHCFEET) = 6.88 AVERAGE FLOW VELOCITY(FEET/SEC.) -2.77 PRODUCT OF DEPTH&VELOCITY = .73 STREET FLOW TRAVELTIMECMIN) = 2.59 TC(MIN) ~ 10.89 10 YEAR RAINFALL INTENSITY (INCH/HOUR) = 2.871 EOI L CL~~IS~:) I F I C{~iT I ON I ~1 '1 D I. SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES) = 3.60 SUBAREA RUNOFF (CFS) -5.68 SUMMED AREA (ACRES) = 3.80 TOTAL RUNOFF(C~S) -6.06 END OF SUBAREA STREETFLOW HYDRAUlICS~ DEPTH (FEET) = .31 HALFSTREET FLOODWIDTH(FEET) -9.37 FLOW VELOCITY(FEET/SEC.) = 3.04 DEPTH*-VE::LDC I T\{ ::::: **************************************************************************** FLOW PROCESS FROM NODE 4.00 TO nODE ~i. 00 I E~; CODE ::::: ... _ "'~ .~ •• ',OM ............... _ ....... ,., ........... ,.oN ................................ _ .......... __ ....... _ .......... ".M ..... ___ .. 'MO. ____ ..... ".M ,._ •• _ ,. __ 0_ .. 0 ......... 0 ................ 'H .................. _ ................ _ .. _ ..... __ .......... _ .............. _ ............... __ "0" .......... " •• , .......... _ ••••• »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ============================================================================ SOI L. C L"{:"!S Ell F I C:(..nTOI\I I B II D II f3 I I\IGLE F(il--'1 I LV DEVEL.DPt"IEI\IT Fi:UI\-IDFF CClEFF:: I C I EI\IT :": .5!_:'500 INITIAL SUBAREA FLOW-LENGTH (FEET) -120.00 UPSTREAM ELEVATION = 395.00 DOWNSTREAM EL.EVATION = 386.00 ELEVATIUN DIFFERENCE = 9.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUT~S) -8.878 -~-C('~\.JT J: C)hl: SUBI~-~II::;:E('~ m_.DPE EXCEEI)3 CDU~---!TY !-'-ICmDC3f~{.:lPI---1 DEFINITION. EX-fRAPOL.ATION OF NOMOGRAPH USED. 10 YEAR RAINFALL INTENSITYCINCH/HDUR) = 3.275 SUBAREA RUNDFF(CFE) - TOTAL AREACACRES) = .30 TOTAL RUNoFFCCFS) - **************************************************************************** FLDl'J Pr-;:DCEElS FHOI'1NODE ~5. 00 TD NODE b. 00 1 S C::ODE: :::: ----------------------------------------------------------------------------- »»>COMPUTE STREETFLDW TRAVELTIME THRU SUBAREA««< =============================================================~============== UPSTREAM ELEVATION = 390.00 DOWNSTREAM EL.EVATION = 370.00 STREET LENGTHCFEET) ~ 450.00 CURB HEIGTHCINCHES) = 6. STREET ~IALFWIDTH(FEET) = 28.00 STREET CRDSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -4.11 S-fREET FLOWDEPTHCFEET) = .25 HALFSTREET FLOODWIDTH(FEET) = 6.05 AVERAGE FLOW VELDCITY(FEET/SEC.) -4.24 PRODUCT OF DEPTH&VELOCITY = 1.05 ~:rTF:;: E E T F L. D I/-J T P {.~ ',,'E L T H'I E ( 1"11 1\1):::: 1. • -T? T C (1'-"11 N ) =.: 10ft ,:~j:=; 10 YEA~ RAINFALL INTENSITYCINCH/HOUR) = 2.913 ~:;O:c L Cl.._{~'::)f:) I F I C::{~IT I ON I S "D II SINGLE F,.:'-lt'HLY DL:::VELOPI-'1E:t-!T RUh!DFF (:OEFFICIENT :::: • :5;5('<) I • • END DF E3I.JHP,HE?i S·rHEETFLOv.) !"r'r/Df~{,~,UL. I CS ~ DEP"!·!·-! (FEE"!"):::o " ~::.O 1 .. ·I(.:ILFGTHr::ET F·L.CJDDhl I DT!"! (Fl:::ET) -_. G" 54 FUJI,.,) l,t'ELiJC 1 TY (FEET !SEC,,) =" -4. ;:::;'7 DEPTH·iH./ELfJC I TY :;:;: 1" :3b **************************************************************************** FLOW PHD CESS FROM NODE 6.00 TO NODE C'f" qo IS CODE :::: ----------------------------------------------------------------------------»»>COMPUTE PIPEFLOW THAVELTIME THRU SUBAREA««< »»>USING COMPUTER-ESTIMATED PIPEGIZE (NON-PRESSURE FLOW)««< ~=========================================================================== ESTIMATED PIPE DIAMETER(INCH) INCREASED TO 18.000 DEPTH OF FLOW IN 18.0 INCH PIPE IS 6,,4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 13.8 UPSTREAM NODE ELEVATION = 370.00 DOWNS1'REAM NODE ELEVATION = 338.00 FLOWLENGTH(FEET) = 360,,00 MANNINGS N --.013 ESTIMATED PIPE DIAMETER(INCH) -18.00 NUMBER OF PIPES -1 PIPEFLOW THRU SUBAREA (CFS) -7.75 TRAVEL TIME(MIN.) = .43 TC(MIN.) -11,,08 **************************************************************************** FLOW PROCESS FROM NODE ,:;. 00 I ~3 CODE "= --------------------------------------------------------------------------~-»»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ============================================================~=============== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE~ T H'IE CWo Cm\ICEI\ITH{~T ICJN 0'1 HIUTEE:n =" 1t " Of) RAINFALL INTENSITY (INCH.!HOUR) = 2,,84 TOTAL STREAM AREA (ACRES) = 4.80 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = -r '71:::-i n I ... J **********~***************************************************************** FLOW PROCESS FROM NODE -, . 00 TO !\!ODE 8" 00 It~ CODE ,,-, ----------------------------------------------------------------------------»»>RA1'IONAL METHOD INITIAL SUBAREA ANALYSIS««< ========~=========================================~========================= f3Dll... Cl...(..'6 BIF I C(..'fTHJN IS "0" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAl... SUBAREA FLOW-LENGTH (FEET) -120.00 UPSTREAM ELEVATION = 370.00 DOWNSTREAM ELEVATION = 364,,00 ELEVATION DIFFERENCE = 6.00 URBAN SUBAREA OVERLAND TIME OF FLOW (MINUTES) -8.648 *CAUrION~ SUBAREA SLOPE EXCEEDS COUNTY NOMOGRAPH DEFINITION. EXTRAPOLATION OF NOMOGRAPH USED. :I. <) \'EP!H P(..) I NF nL..L.. I t"··.!TEN~:) I TY( INCH / !"!DUF~) :::: :~::. :~:::3;:I. ~3UB(:)F~E(..') nUNOFF (CF~3) .-. TOTAL AREACACRES) = .30 TOTAL RUNOFF (CFS) - **~************************************************************************* 8"00 TD NDDE 9. 00 I E; CODE ::: ----------------------------------------------------------------------------»»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< =====~::::===========================================:::::===========:::::=========:::::=== UPSTHEAM ELEVATION::::: 364.00 DDWNSTHEAM ELEVATION = 338.00 STREET LENGTHCFEET):::: 400.00 CURB HEIGTH(INCHES) :::: 6. ~:nH'E'~ET 1 .. ·1 (:'d .... F l'·J I DTH (FEET) :::: :,;::El. 00 SH~EET Cpm3SFf.iLL (DE'~C I t~!AI.. .. ) -... • 0200, SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF:::: 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -3.85 STREET FLOWDEP1~CFEET) = ,,23 H(.\I...FS"I"F(EET FL.DCm~;J I DTH (FEET) "'~, :5. 2:S I • • PFVJDUCT OF DEPTr'lg~~)ELDC I "I"'{ :::: 1 . 1 :::. SlREETFLOW TRAVELTIMECMIN) = 1.36 TC(MIN) -10.00 10 YEAR RAINFALL INTEN8ITYCINCH/HOUR) = 3.032 f.3o I L CL.'('ibEl I F I c(.Yr I DI'"I I f:3 11 D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREACACRES) = 4.00 SUBAREA RUNoFF(CFS) -6.67 SUMMED AREA (ACRES) = 4.30 TOTAL RUNOFFCCFS) -7.22 END OF SUBAREA STREET FLOW HYDRAULICS: DEP1'H(FEET) = .28 HALFSTREET FLOODWIDTHCFEET) -7.71 FLOW VELoCITY(FEET/SEC.) = 5.07 DEPTH*VELOCITY = 1.42 ***********~**************************************************************** FLOW PROCESS FROM NODE D. 00 TO l\lODE 9.00 IS CODE ::::: »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ============================::=============================~================= CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: T I t'IE OF' CONCENTF~{.:l T I ON (t'1 I NUTES) :::: 10. 00 RAINFALL INTENSITY (INCH./HOUR) = 3.03 TOTAL STREAM AREA (ACRES) = 4.30 TOTAL STREAM RU~~FF(CFS) AT CONFLUENCE = 7.22 **************************************************************************** FLOW PROCESS FROM NODE 10.00 TO NODE 1 1 . 00 IS CODE ::: -------------------------------------------------------------------------~-- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ==~======~================================================================~= SDIL CL.(:lt:mIFIC(..YTIDN IS liD" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFI~IENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) -500.00 UPSTREAM ELEVATION = 420.00 DOWNS1'REAM ELEVATION = 365.00 ELEVATION DIFFERENCE = 55.00 URBAN SUBAREA OVERLAND TIME OF FLOWCMINUTES) -19.640 *CnUTION: SUBAREA SLOPE EXCEEDS COUNTY NO~mGRAPH DEF J 1\[1 T I ON" EXTn("~POI..AT I Oh! DF t'IClI'"1Clm':;~(.'~Pl"'1 USED, lO \(EnFi: FU,lJ:I\IF{~L.L.. Ibl"I"CbISI'fY(IHCI"'I/I"'IULJf:;;) ,,:: 1,,9h~? SUBAREA RUNOFF (CFS) -1.51 TOTAL AREA(ACRES) = 1.40 TOTAL RUNOFF(CFS) -l.5l **************************************************************************** FLOW PROCESS FROM NODE 11..00 TD NODE 9. 00 I f; CODE ::: ---------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER-ESTIMA1~~D PIPESIZE (NON-PRESSURE FLOW>««< ::::: :::: ::.::..:::::::::::::::::::::: =.: ::.:: :::: :-.::: :::: ::::::::: ::::::::: ::.-:::::::::: :::::::::: ::::: =:::::;:::::::::: :::: :::-:::::: ::".:: ::::::::: ::::: :::: ::::: ::::: ::::: ::::: ::::: ::::: :::::::r.: ::::: :::: :::::::::::::: ::::: ::::: ::::: :::: :::: ::::.:::::: :;:.: ::::: ::::: ::-.: ::::::::: :::: :::: :::::::: ~:::: =-_"!: :::::::::: :::::::::: ::::: ::::: :".::::::: ESTIMATED PIPE DIAMETER(INCH) INCREASED TO ID.OOO DEPTH UF FLUW IN 18.0 INCH PIPE IS 3.2 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 7,0 UPSTREAM NODE ELEVATION = 365.00 DOWNSTREAM NODE ELEVATION = 338.00 FLDWLENGTH(FEET) = 550.00 MANNINGS N -.013 ESTIMATED PIPE DIAMETER(INCH) -18.00 NUMBER OF PIPEb - PIPEFLOW THRU SUBA~EA(CF8) -1.51 TRAVEL TIME(MIN.) = 1.31 TC(MIN.) -20.95 ****************~*********************************************************** FL.OW PROCESS FRClM NODE 11.00 TD NODE 9. 00 IS CDD.E: ::::: :1. ---------------------------------------------------------------------------~ I • ,. ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 AREg TIME or CONCENTRATIONCMINUTES) = 20.95 RAINFALL INTENSITY (INCH./HOUR) = 1.88 TOTAL STREAM AREA (ACRES) = 1.40 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE -1.51 CONFLUENCE INFORMATION~ STREAM RUNOFF TIME INTENSITY NLn·U·::ER (CF~3) (t'1IN.) (It'·ICHil···IOUH) ........ _ .....• ~ .......... __ ... ,.OM ............................ _ ........... _ ._ ..... __ .......... _ ...... __ ................ _. _ ....... _ .... _ ........ __ ............ _ ....... _ .. , •• _ ..... __ ._ ...... _ .. , __ ... __ .... __ ..................................... om .... _ ............................................................ _ ... _. _ ... .. t -7 I • "7~5 1 1 . 08 :';:: 11 t:$:3 1;;' ~~ oI!:' "1 . r'j""l .s:: .. l!:' 10. 00 .. , ") II ()3:~~ ~:::; 1 ;::;j1 ~~() IS 00:::-1 B82 . 7 ·_1 . RAINFALL-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS VARIOUS CONFLUENCED HUNOFF VALUES ARE As FOLLoWS~ :l.5.~51 15.41 11.1.~::; COMPUTED CONFLUENCE ESTIMATES ARE AS FOLlOWS~ RUNOFF (CFS) = :1.5.51 TIMECMINUTES) -11.080 TOTAL AREA(ACRES) = 10.50 **************************************************************************** FLOW PROCESS FROM NODE 12. 00 TD r··.IODE :===~=======================================================~=====~========= SOIL C!31t3BIFIC(')TION I~3 "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 I !,~ I"T· I (..')\... SUB(':)I~E{-) FI...Ov·J····LENGTH (FEET) .. -:\. 40. 00 UPSTHEAM ELEVATION = 438.00 DOWNSTREAM ELEVATION = 435.00 ELEVATION DIFFEHENCE = 3.00 URBAN SUBAREA OVERLAND TIME OF FLOWCMINUTES) -9.787 10 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.075 SUBAREA RUNOFFCCFS) -.34 TOTAL AREACACRES) = .20 TOTAL RUNOFF(CFS) -.34 **************************************************************************** FI .... O!;·J pr':;~OCEE3E":; FRot·'1 t·-.lDDE 13. 00 TO hlClDE i. I ••• } »»>COMPUTE STREEtFLOW TRAVELTIME THRU SUBAREA««< ===~=================================~====================================~= UPf.~·rF;~E{')i·'1 ELE:'JAT I ON ::::: ll::::~.i. 00 [lO~'JNSTHE{.)t·/1 ELE'v'(:.)T I Dt,l = (1·01. • 00 STREET LENGTH (FEET) = :1.000.00 CURB HEIGTH(INCHES) = 6. tnT<:EET HPILFI,'.j I D-n··1 (FEET) ::-.: 2B" 00 BTHEET CF:;:D~3SFf·~L.L. (DEC I IVI{·~L) · .. ···.0200 SPECIFIED NUMBER OF HAlFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLGW(CFS) -3.86 STREET FLOWDEPTHCFEET) = .26 HALFSTREET FLOODWIDTHCFEET) = 6.88 AVERAGE FLOW VELOCITY(FEET/SEC.) -3.26 PRODUCT OF DEPTH&VELOCITY = .86 STREETFLOW TRAVELTIME(MIN) = 5.11 TC(MIN) = :1.4.90 10 YEAR RAINFALL INTENSITYCINCH/HOUR) = 2.345 SD I L CL{~:::?iEl I F I C(\T I ON IS" D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIE~IT = .5500 SUBAREA AREA (ACRES) = 5.40 SUBAREA RUNOFF(CFS) -6.97 SUMMED AREA (ACRES) = 5.60 TOTAL RUNOFFCCFS) = 7.30 EhlD OF BUBPd::;:EA ErrnEETFL.m'J 1··r-rr:)HP1UI.... I CS ~ DEPTH(FE~T) = .31 HALFSTREET FLDDDWIDTH(FEET) = 9.j7 FLOW VrL~rITY(FEET/SEC.l = 3.67 DEPTI+r,·'..,,'EI .... (JC I T\r .:0:: I • • ***********************************************************~~**************** t :::::" 00 ·ro I\IODE 14 .. 00 IS CODE ::::: -------------------------------------------~--------------------------------> > > > >DEEi I GI'·.I(~TE I t···.IDEPENDEI\IT ~?,TnE(.it'1 FOR COI\IFLUEI'~CI:::< -::: < < <: ============================================================================ CONFLUENCE VALUES USED FOR INDEPENbENT STREAM 1 ARE~ TIME OF CONCENTRATION(MINUTES) = 14.90 RAINFALL INTENSITY CINCH./HDUR) = 2.35 TOTAL STREAM AREA (ACRES) = 5.60 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 7 .. 30 **************************************************************************** FLOW PROCESS FROM NODE 1.!5. 00 TD I\!ODE 1. 6 .. 00 I El cr)DE ::: ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ==========================================================~==========~===~== SO IL. CL.P,Sf.3I F I C("H I m···~ I S \I D" ~::) I t'.!GU:: F t,t"! I L Y DEVEU)Pt'1E::I",rr mJt'·.!DFF COEFF I C I r:NT :::: . ~::;~SO() I hi I T I ,~L SUB{'~RE(") FLO\l.J···L..E\\\GT\···\ (F[7~ET) .... 100. 00 I....IF·E.;TF~Ef~~t·,1 ELEV('·~T I Dt\1 :::: 4~::'7 .. 00 DOWNSTREAM ELEVATION = ELEVATIDN DIFFERENCE = 1.."{.:::;5 II ()() :7:; .. 00 URBAN SUBAREA OVERL.AND TIME OF FLOW (MINUTES) - :1.0 YE{.\r;: R('HNF('~LL IhITE}·mITY (INCH/HOUFO :::: :3.420 SUB('~RE(") nUhlDFF (CFf.3) -. TOTAL AREA (ACRES) = .20 TOTAL RUNOFF(CFS) - **************************************************************************** FLOW PROCESS FROM NODE 1"7. 00 :r ~3 CODE :::: »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ============================================================================ UPSTREAM ELEVATION = 435.00 DOWNSTREAM ELEVATION = 402 .. 00 ~3TF~E::ET L.EN[3TI···1 (FEET) ::::: 1. 000. 00 CI..Ji:~B HE I GTH ( I NCHE~3) = 6. STREET HAL.FWIDTH(FEET) = 28.00 STREET CROSSFALLCDECIMAL.) -.0200 SPECIFIED NUMBER OF HAL..FSTREETS cARnYING RUNOFF = :: **TRAVELTIME COMPUTED USING MEAN FLDW(CFS) -5 .. 63 STREET FL..OWDEPTH(FEET) = .. 28 HALFSTREET FL.OODWIDTH(FEET) = 7.7t AVERAGE FLOW VELOCITY(FEET/SEC.) -3.95 PRODUCt OF DEPTH&VELOCITY = 1.11 STREETFLOW TnAVElTIt"!E(MIN) = 4.22 TCCMIN) = 12 .. 52 10 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.624 ~3DIL Cl....(.~D~3IFIC(~TIDN IS "D" SINGLE FAMILY DEVELOPMENT RUNDFF COEFFICIENT = .. 5500 SUBAREA AREA (ACRES) = 7.40 SUBAREA RUNOFF (CFS) -10 .. 68 SUMMED AREA(ACRES) = 7.bO TOTAL RU~mFF(CFS) -11 .. 06 END OF SUBAREA STREETFL.OW HYDRAULICS~ bEPTH (FEE·r):::: " 3~3 H(.iLFSTREET FL..ClDD1;.J I DTI···I (FEET) .... :!.:I. .. 02 FLOW VELOCITY(FEET/SEC .. ) = 4.15 DEPTH*VEL.OCITY = t.44 **************************************************************************** FLOW PROCESS FROt"! NDDE 17.00 TO NODE :1.4.00 IS CODE ::::: »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »>/>USING USER-SPECIFIED PIPESIZE««< ,::t. ======================================~===================================== DEPTH OF FUJ~tJ IN 24. (> INCH PIPE If.3 10.7 IhlCHE5 PIPEFL.OW VELOCITY(FEET/SEC.) = 8.1 L./F(::;T Ht::: r::.-'!.'\ !\IOPE ELEv~Yr Ien.,I:::: 40·~~'. I)'::·, DOWNSTREAM NODE ELEVATION ~ 401.00 I • , GIVEN PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREA (CFS) -11.06 'TF;:;Vv'El. T H'IE (tIl n',.!.):::: . 12 TC (lvii t'..Iu) ::-." 1:;;:. 64 FLOW PROCESS FROM NODE 17.00 TO NODE 1 L~. 00 I S CODE ::;:: »»>DESIGNATE INDEPENDENT STREAM FOR CoNFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VAlUES««< :!. 1. :::::::::: :::: ::::: :::: !:!:: ::::: =::: ::::: ::::: ::::: :::::::::: :::::::: ::::: :::: ::::: :::: ::::: !!!!:::::::::::::::: ::::: :::: :::::::::::::: ::::: ::::: ::::: ::::: ::::: :::-:: :::.:: ::::::::: ::::: ::::::::: ::::: :::::::::: ::::::::: ::::: :::: :::: ::::: :::: :!'.:: ::::: ;:::: ::::: ::::: ::::: ::::: ::'.!: :-.:::..::::: ::::: ::::: :::': ::::: ::-.:: ::::::::.:::=: :=.-:: :::: ::::: :::::::: ::::: CONFLUENCE VALUES US~D FOR INDEPENDENT STREAM 2 ARE~ TIME OF CONCENTRATION (MINUTES) = 12.64 RAINFALL INTENSITY (INCH./HOUR) = 2.61 TOTAL STREAM AREA (ACRES) = 7.60 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE -11.06 CONFLUENCE INFORMATIoN~ STREAM RUNOFF TIME I h!TENl3 I TY (CFf:3 ) ,"'1 ..::' 1l.06 RAINFALL-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS 'y'(":iR I CJl.m CDI\~FLUEt',,!CEI) HUNCiF'F \,,'{:,d .. .I.JE~:3 (.)Fi:E (~~3 FOLLm,,)S:: i ' .. ;' '."r:::-J. l :J .1:'.,_' i·~ I .'. .1. / n "::1,'::. COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS~ RUNOFFCCFS) = 17.63 TIME(MINUTES) -12.638 TOTAL AREA (ACRES) = 13.20 **************************************************************************** FLOW PROCESS FROM NODE 1::3.00 TD NODE 1 r.:; r. 00 IB CODE: ~":: »»>HATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ============================================================================ SOIL C;U::1Gf:3IFIC(HION IS "D" SINGLE FAMILY D~VELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH (FEET) -100.00 UPSTREAM ELEVATION = 393.00 DOWNSTREAM ELEVATION = 391.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOWCM1NUTES) - 10 YEAR RAINFAll INTENSITY(INCH!HDUR) = 3.420 SUBAREA RUNOFF(CFS) = TOTAL AREA (ACRES) -.20 TOTAL RUNO~F(CFS) - ************~**************************************************************~ FLOW PROCESS FROM NODE 1 r::i • 00 TO f',,!ODE 20. 00 I S CODE :::: »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< =========================================~=============================~=~== UPSTREAM ELEVATION = 391.00 DOWNSTREAM ELEVATION = 378.00 STREET LENGTH (FEET) = 900.00 CURB HEIGTH(INCHES) = 6. ~:::;TREET H(:~L..F~'JIDTH (FEET) "": 2D. 00 ETF~EET CRDSf~3F(',~L..L.. (DE:'CIt'It'~IL) .... , .0200 SPE:C I F I ED !'HJt1E:EI=( DF H(-4L..nnnEETS C(''iRfi:Y I \'\!G HUhIDFr;'::: ::;:~ "!~"A'TF~(.)')ELT I t'/!E CCJt"IF'I..JTED us I [\Ir.::1 !'IEPIN FL(J~'J C CF~3) " .. , :? :.?::;:: STREET FLDWDEPTH(FEET) = .25 HALFSTREET FLOODWIDTHCFEET) = 6.05 AVEHAGE FLOW VELOCITY(FEET/SEC.) -2.29 PRODUCT OF DEPTH&VELOCITY = .57 STREETFLOW TRAVFLTIME(M~N) -6.54 T[CMIN) = 14.84 • • BUlL c!.. .. (:lSr:3IFIC{~TIDN Il3 "D" S1NGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT ~ .5500 SUBAREA AREACACRES) = 2.90 SUBAREA RUNOFFCCFS) -3.75 SUMMED AREA (ACRES) = 3.10 TOTAL RUNDFF(CFS) -4.13 END OF SUBAREA STREET FLOW HYDRAULICS~ DEPTH (FEET) = .30 HALFSTREET FLOUDWIDTH(FEET) -8.54 FLOW VELOCITY(FEET/SEC.' = 2.44 DEPTH*VELOCITY = .72 ***************************~************************************************ FLOW PROCESS FRUM NODE 1. S'. 00 TO I\IODE 20. 00 I El CODE ::: »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ===========================================================================~ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE; TIME OF CONCENTRATION (MINUTES) = 14.84 F:~A I NF (·i 1... L I hITENf~ I TY (I NCI···I. ! HOUR) ::: ~,7:~. ~::';5 TOTAL STREAM AREA (ACRES) = 3.10 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 4.13 **************************************************************************** FLOW PROCESS FROM NODE 21 . 00 TO I\IODE :-:::::2" 00 I f:3 CODE :::: »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< =============~======================================~:::======================= SOIL CI .. ..r:iGE;IFICfYTION IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICtENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) -100.00 UPSTREAM ELEVATION = 394.00 DOWNSTREAM ELEVATION = 392.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOWCMINUTES) -8.299 10 YEAR RAINFALL INTENSITY (INCH/HOUR) = 3.420 . SUBAREA RUNOFF(CFS) - TOTAL AREA(ACRES) - n :~~f3 .20 TOTAL RUNOFF(CFS) - **************************************************************************** FLOW PROCESS FROM NODE 23 .. 00 IS CUDE ::: ============================================================================ UPSTREAM ELEVATION = 392.00 DOWNSTREAM ELEVATION = 379.00 STREET LENGTH (FEET) = 850.00 CURB HEIGTH(INCHES) = 6. ~n REET I··i (iL.F· LA) nrn·1 (FEET) :::: 2(-3.00 E;lHEET CF~m3DF('~U .. (DEC I IVI(:~L) .... .. 0::;::00 SPECIFIED NUMB8~ OF HALFDTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFD) -1.62 STREET FLDWDEPTH(FEET) = .23 HALFDTREET FLOODWIDTH(FEET) = 5.23 AVERAGE FLOW VELOCITY(FEET/SEC.) -2.06 PRODUCT OF DEPTH&VELOCITY = .. 48 STREETFLOW TRAVELTIME(MIN) = 6.86 TCCMIN) = 15.16 1. 0 'lE{~F~ HA I I\IF {)LL. I NTEI\J!3 I TY ( I NCH I HDUR) ::::: ::;::. :~:'l. 9 ~:;:;O I L CL.(.:·1~3E) I F I CAT I ON I El II D II SINGLE FAMILY DEVELOPMENT RUNOFF COE~FICIENT = .5500 SUBAR~A AREACACRES) = 1.90 SUBAREA RUNOFF(~FS) -2.42 SUMMED AREA (ACHES) = 2.10 TOTAL RUNOFF (CFS) -2.80 END,DF SUBAREA STREETFLUW HYDRAULICS: DEPTH (FE:T::r)::::: .26 HALFSTHEI:?T FLC)(Jm~ I fJTl-l (FF.:::F.:::T) .-6. 8t:: FLOVJ 'y'E: 1.... DC I TY (FEET lE;EC.) ..... 2" :~:;6 DEPTH·*·'v'El..OC I T'y' ::" 1 t'''1 tI ' .. ::1.1::. »»>CDMrUTE PIPEFLDW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ==================~=============~===================================~======= DEPTH OF FLOW IN 18.0 INCH PIPE IS 5.7 INCH~S , PIPEFLOW VELDCITYCFEET/SEC.) = 5.8 ur.::'gTHE (.\IVI I'·.IODE EL..EV{~) T I Ot·~ :::: ::~;79 . 00 DOWNSTREAM NODE ELEVATION = 378.00 • FLOWLENGTH(FEET) = 58.00 MANNINGS N = .013 GIVEN PIPE DIAMETERCINCH) = 18.00 NUMBER OF PIPES - PIPER_OW THRU SUBAREA(CFS) -2.80 TRAVEL TIMECMIN.) = .17 TC(MIN.) ~ 15.33 FLrn~ PROCESS FROM NODE :;z~:.. 00 TO hlODE 20. 00 I ~3 CCmE :::" :>:>:> > >DEE::l I (3N{-)TE I NDEPENDENT STRE:::{.~I·"1 FDI=i: COI\IFLUE::I\ICE<: <: <: < <: »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< ·1 .I. ::.:::::: ::::::::::::::::::::::: ::::::::::::::: ::::: ::: ::::: :::::::::: = ::::; :::::::::::.:::::::!!!: ;:::: :::::::-.::::::::::::::: ;,,-;-.: :. .. .:: :::: :::::::::::: ::::: :::: ::::: ::::: == :::::::-.::::: :::::::::::::::::: :::.:::::: ::::: :::::!!!:: :::'.! :::: ::::: :;::: ::::: :::: :::: :~: ::::: ::::: ::::: ::::: ::::-::::: ::::: ::::: ::::;:.;:::::: =::: ::::::::: ::::::::: !!::! CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE~ TIME OF CONCENTRATION (MINUTES) = 15.33 RAINFALL INTENSITY (INCH.!HOUR) = 2.30 TOTAL STREAM AREA (ACRES) = 2.10 TOTAL STREAM RUNOFFCCFS) AT CONFLUENCE -2.80 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY I\~LII"/IBEH (CFB) (t"1 IN.) ( I NCI·-I! HDUR) ---------------------------------------------------------------------------- :t4.B4 :2. :351. RAINFALL-INTENSITY-RATIO CONFLUENCE FOHMULA USED FOR 2 STREAMS VARIOUS CDNFLUENCED RUNOFF VALUES ARE AS FOLLOWS: J .'., •••• C/n\:::'/ C()ti!PUTED CDNFL..lJEJ'<ICE EtH HI(') 1"Et) ?)HE {)S FDLLOI;JS: RUI\!DFF C CF!:3) ":: (":). 87 T H1E <t"1I hIUTES) .... 14·. B~Y:;·· TOTAL AREACACRES) -5.20 **************************************************************************** FLOW PROCESS FROM NODE 24.00 TO NODE 25.00 IS CODE = 2 ----------------------------------------------------------------------------»»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< :::::::::: :::: ::;:::::: :::-.: :::: :::: :::: ::::: ::::: ::::: ::::: :::: =_"! ::::: :::::::::: ::::.::.::: :::: ::::: ::-:::::: =:: ::!:: ::::: =: :::::.:::: :::::::::: :::!: ::::: :::: ::::: :::: ::::: :::.:: ::.: ::::: ::!:: ::!:! :::!! ::::: ::::: ::::: ::::: :::: :.::: ::::: ::::: ::::: ::::: ,::::: :::: :::.: ::::: ::::: ::::: :::: :::::-::::: ::::: ::::: :::::-:::: ::::::::: :;-.:: ::::: :::: ::::: :";: :::: ::::: SD I L CL..I(I~:;~:; I F' I C?) T I ON I S liD !I SINGLE FAMILY DEVELOPMENT RUNOF~ COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) -100.00 UPSTREAM ELEVATION = 418.00 DOWNSTREAM ELEVATION = 416.00 ELE'v'PIT I UN D I FFEnEI'·.ICE ::-.:: :;~::. 00 UPB(~I\! BUB(iPF.I(:~ OI.jEF~L(.~lND T I t'1E o F'-FL..Dl·~ (to! I NUTES) ..... :1.0 YE:.{·~F;: F;:{::lINr·('~L.L INTEt'·.!SITY (It,ICI···I!I"·!OUn) ::: ~:;. 1.1·20 SUBAREA RUNOFF (CFS) - TOTAL AREACACRES) = FLO~ PROCESS FROM NODE • :';::0 Tn·r {~L,. HUNClFF (CF~:;) ... 2~5. 00 Tf] j···.I[)!)E 2b. 00 It; CO Dr:: ::::: --------------------------------------------------------------------7------- »»>CoMPUTE STREET FLOW TRAVELTIME THRU SUBAREA«<<:< ==================================================~===================~===== UPSTHEf."il·1 EI ... .E::W:(f" I DN ~.~: STREET LENGTH(FEET) ~ 416.00 900.00 DOWNSTREAM ELEVATION = 375.00 CURBHEIGTH(INCHES) = b. I • • ~,F'I:~C:; I F' I E:n 1\IUt"1BEH ClF H(::lLF~3TFi:EET~3 C(.:.)F\F;:Y I I\IEJ F~:UNDFF :::: ::::: **·fR(.:.)VELTIME COMPUTED USING MEAN FLOW(CFS) - STREET FLOW DEPTH (FEET) = .30 HALFSTREET FLOODWIDTI~(FEET) = 8.54 AVERAGE FLOW V~LOCITY(FEET/SEC.) -4.28 PRODUCT ClF DEPTH&VELOCITY = 1.27 STREET FLOW TRAVElTIME(MIN) = 3.50 TC(MIN) = 11.80 10 YE(lf:;: H(') I NF {.)LI.... I I\ITENB I T''{ ( I NCI'-l/I-IOUH) ::::: 2. 726 ~::;DIL CL{~E)E::;IFIC(':')TION IE:l "D" SINGLE FAMILY DEVELOPMENT F\UNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES) = 9.10 SUBAREA RUNOFF(CFS) = 13.64 SUMMED AREA (ACRES) = 9.30 TOTAL RUNOFF(CFS) = 14.02 END OF SUBAREA STREET FLOW HYDRAULICS: DEPTH (FEE::':"!") :::: • ::::.~:.s HALn3TREI::~T FLDDDv·j I DTH (FEET) ::: 11. 0::::: FLOW VELUCITY(FEET/SEC.) = 5.26 DEPTH*VELOCITY = 1.82 **************************************************************************** 26.00 TO NODE :>:>:>:> :>cm"1F'UTE r::' I PEFU)!,..) Tn r.i',./ELT I t"1E THF~U S!...!B(.·~m:(~l< <: <: <: <: »»>USING USER-SPECIFIED PIPESIZE<<:<:<< ===========~========================~=======~=========================~==~== DEPTH OF FLClW IN 24.0 INCH PIPE IS PIPEFLOW VELOCITY(FEET/SEC.) = 16.7 UPSTnEAM NClDE ELEV(':')TION = 375.00 DOWNSTREAM NODE ELEVATION = 368.00 7. 5 I NCI·-IEf:3 F·LO\l,JI .. _EJ·I(TT}·1 (r--EE:T) "-': 70.00 t"1 (..'i 1\1 hi I NGS N:::: • 0 1 ~::: GIVEN PIPE DIAMETERCINCH) = 24.00 NUMBER OF PIPES - PIPEFLDW THRU SUBAREA(CFS) -14.02 TRAVEL TIMECMIN.):::: .07 TCCMIN.):::: 11.87 1 **************************************************************************** FLOW PROCESS FROM NODE 27. 00 TO I\!ODE 2B. 00 I ~:) CODE ::: ---------------------------------------------------------------------------- »»>R(':')TION(':')L METHOD INITIAL SUBAREA ANALYSIS«<:« ============::::=::::::::=::::::::::::================~======================================== ~3D I L... CI:...{:~f.:)!3 I F I C('~T I 01\1 .[ S ":0" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT:::: .5500 INITIAL SUBAREA FLOW-LENGTH (FEET) -100.00 UPSTREAM ELEVATION = 393.00 DDWNSTRE(':')M ELEVATION == 391.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOWCMINUTES) - 10 YE(:,F: Rlc)H'IFf.~LL Ihl'T'ENl:HTY (n..ICHll .. ml...JFn ::: :3.1.1-20 SUBAREA RUNOFF(CFS) -.38 TOTAL AREACACRES) = .20 TClTAL RUNDFF(CFS) - **************************************************************************** FLOW PROCESS FROM NODE 28.00 to NODE 2? • 00 I ~:3 CODE :::: »»:>CDMPUTE STREET FLOW TRAVELTIME THRU SUBAREA««< =================================::::=========================~============::::==:::: UPSTREAM ELEVATION = 391.00 DOWNSTREAM ELEVATION = 370.00 STREET L~NGTH(FEET) = 700.00 CURB HEIGTHCINCHES) :::: 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROBSFALL(DECIMAL) _ .. 0200 SPEGIFIED NUMBER OF HALFSTnEETS CARRYING nUNOFF:::: 2 **TRAVELTIME COMPUTED USING MEAN FLOW{CFS) -3.82 STREET FLOWDEPTHCFEET):::: .26 HPII....FErn~EET FLClom", I DTH (FEET) "'" (71 u 8(3 AVERAGE FLOW VELOCITY(FEET!SEC.) -3.23 r:'rmDUCT OF PEPTH;?:NEL..CJC J: TV ._-" 8!5 10 YEAR RAINFAll INTENSITYCINCH/HOUR) -2.709 [;)0 I L.. Cl...{·i:3f:::I F I CAT I ON I B "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES)::::: 4.60 SUBAREA RUNOFF(CFS) - I f,31...WlI'.1ED {~HE{.:I (riCH\::5)::::: 4. [:30 TDT !~lL F:':LJI\IOF'F (CFS) ::: END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET~::::: .31 HALFSTREET FLOODWIDTH(FEET) ::::: FLOW VELOCITY(FEET/SEC.) = 3.63 DEPTH*VELOCITY::::: (:1 r: E:~ ~::.i -7 " ~;23 1. • 14 **************************************************************************** FLOW PROCESS FROM NODE 2'-1'. 00 TO I\!ODE :~:.o. 00 I S CODE ::: »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ==:::::=====:::::=::::::::::=~==:::::===========~=================================~===~========== DEPTH OF FLOW IN 24.0 INCH PIPE IS 6.8 INCHES PIPEFlOW VELOCITY(FEET/SEC.) = 10.0 UPSTREAM NODE ELEVATION = 370.00 DOWNSTREAM NODE ELEVATION = 368.00 FLOWLENGTHCFEET) = 50.00 MANNINGS N::::: .013 GIVEN PIPE DIAMETERCINCH) = 24.00 NUMBER OF PIPES -1 PIPEFLOW THRU SUBAREA(CFS) -1.23 TRAVEL TIMECMIN.)::::: .08 TC(MIN.) = 12.00 **************************************************************************** FLOW PROCESS FROM NODE 29. 00 TO 1'.'!oDE ~:.o" 00 IE'; C::ODE::. .::: »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< .::~ ::::: "~'":;;:::::~;;~:~;~~:;~ ;~:;~ ~;;.;.~;~~: ::::; ;.:; ~~ ~~ ~l~ :~::; ~~~ :~: :;.:;~ ~:; ;~; ~~ ~~; ~:~~; ~:;:;; ~:::;, ~;~ ~ ::::: :::: :::: ::::: :::::;::: =. ~,: = ::= ::::: =: :::: :=::::"~ :::~:. ::: =::: :::: == "~:: SO II.... CU~~3S IFIC(~TIOI\! 1 S "0" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREACACRES) -9.30 SUBAREA RUNOFF(CFS) -13,,79 TOTAL AREA (ACRES) -14.10 TOTAL RUNOFP(CFS) = 21.02 TC(MIN) = 12.00 FLOW PROCESS FROM NODE ,q.L.j.. 00 I sconE := »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< :>:> >-:> >LJ~; I NG UGEF\:-"'E)PEC I F I ED PI F'EE; I ZE< <: <: <: <: =================:::::============:::::=============:::::=======================~========== DEPTH OF FLOW IN 24.0 INCH PIPE IS 13.1 INCHES PIPEFLOW VELOCITY(FEET/SEt.) ::::: 12.0 UPSTREAM NODE ELEVATION == 368.00 DOWNSTREAM NODE ELEVATION == 342.00 FLOI,'·JLENGTH (FEET) "~:: t3~50. 00 t"I{~Nh! I ".IGS N :::: . <) 1 :~:. GIVEN PIPE DIAMETER CINCH) = 24.00 NUMBER OF PIPES -1 PIPEFLDW THRU SUBAREA (CFS) -21.02 TRAVEL TIME(MIN.) == 1.18 TCCMIN.) == 13.18 ,. 'i!-.j( •. :~. * 0! .. ;.t "t,. "~. ,~. * "A, ·it· .j!. "~. -)\. 7l •. ~. * ~ . .;.(. ~'l' ~* "" ,* .. r:. 1!. -)\. ,"!-"i!-"~. -)!. ",(. ~,!. ,'1' .; ~ ~? .. )!. ·iI· -K. ,*. "* ·;~·.;t -)10 ~~. ·14· "fi.. ~fi.' .;~. ",. ,,,!-"j.. -1( •• t(. "'~ ,~. -i~ -)!. ,y,. ~(. "~. ·i'· ~i' ~(. ·il· "ii· "'~ "il-ii· 1!' -)!-"i!' -}l. "i' -:P.' FLOW PROCESS FROM NODE 30.00 TO NODE 44.00 IS CODE = 1 . ----------------------------------------------------------------~-----------»»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<:<:«<: ::::: :::::::: ::::::::::::: :. .. .:: :::: ::::: :::-.: :::::::: ::::: ::: :::: :::: :::::::::: :::::::::::: ::~: ::::::::: :::::::::::::: :::::::::: ::::::::: :::: ::::: :-.::::::: :=: ::::: :::::::: ::-.:: :::: :::: :::::::::;:::: ::::: ::::: ::::::::-.::::::::::;:::: ::::: =-.::::::: :::::-:::: ::::: :::: ::::: ::::: ::::: ::::: ::!:: :::: !:::: ::::: ::::::::::::::;:::::'~ :::::: ::::: ::::::::: CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) = 13.18 H('UNF?H .. L Il'.lTEblGITY (n.(CI·1. IHDUFU::: ::;:: .. 54 1 ... . (') **************************************************************************** ::::'2. 00 I S CODE ::: FLOW PROCESS FROM NODE ~::'1 .. 00 TO NODE ---------------------------------------------------------------------------- I :> > > > >R{yr IOI\!(·)L !'-1ETI··mD I hi I T I (.:iL f:3UF.H:in[::~:\ (.:iN(.·)LYS I S< <: -::: < <: . . : ~;;~~: :~~ ~ ;:: ~;~ ~~ ~ ;.~: ~~ ~~; ~ ~~;~~; ;::~ :::: :~: ~::: ~: ~ :~::-.:: :::: ::::: ,~:: :::::::: = ::-.":::: = ::: = ::::::." ::: ::: :::::: :::: ::::::: ::::: ::::::: :::::: ::: ~.::: :::: :,":::::: "." :::: :::: ::::: ::::.:::: ::::: :::: :::: :::: ::::: ::: :::: ::: ::::: ::::: :::: SINGLE FAMILY DEVELOPMENT. RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) -100.00 UPSTREAM ELEVATION = 377.00 DOWNSTREAM ELEVATION = 375.00 ELE1·,.!{:'iT 1m··! D I FFEREt\ICE ::::: 2.00 l.JF~B{11\1 SUB('~RE?-~ \Y';ERL..{-~ND T II·'1E OF· FL.-m>J (1'1 I NUTEf;) ... 10 YEAR RAINFALL.. INTENSITY (INCH!HOUR) = 3.420 SUBAREA RUNoFF(CFS) -.. 38 TOTAL AREAtACRES) ::: TOTAL RUNOFFCCFSl - **************************************************************************** FLOW PROCESB FROM NODE 32.00 TO NODE T::' • 00 I S CODE ::::: ---------------------------------------------------------------------------- »»>COMPUTE STREETFL..OW TRAVELTIME THRU SUBAREA««<: ============================================================================ • UPSTREAM ELEVATION = 375.00 DOWNSTREAM ELEVATION ~ 372.00 STREET LENGTHCFEET) = 580.00 CURB HEIGTH(INCHES) ::: 6. STREET HALFWIDTHCFEET) = 28.00 STREET CROSSFALLCDECIMAL) -.02~) SPECIFIED NUMBER DF HALFSTREETS CARRYING RUNOFF = 2 ·t!·~~··n:;:{.wE::LT I t'"IF.: CDl'lPLrrED U~:) I NG nE:.('·~N FLDIJ.J (CFS) .... 1 • 61- STREET FLOWDEPTHCFEET) = .26 HAL..FSTREET FLOODWIDTHCFEET) = 6.88 AVERAGE FLOW VElOCITY(FEET/SEC.) -1.36 PRODUCT OF DEPTH&VELOCITY = .36 STREET FLOW TRAVEL..TIME(MIN) = 7.09 TC(MIN) = 15.39 10 YEAR RAINFALL INTENSITY(INCH!HDUR) = 2.297 !.3Cl J. L CL~'~3~3 I r:. I C(.\T I ON IS 11 D 11 E;; I N!3lE Ff:.it'·1 II ... Y DEVELOPt·'iENT F~UI\IDF·F C[jEFF I C lENT ::::: ,,~:.i~500 SUBAREA AREACACRES) = 1.90 SUBAREA RUNOFF{C~S) -2.40 SUMMED AREA (ACREB) ::: 2.:1.0 TOTAL RUNDFFCCFS) -2.78 END OF SUBAREA STREETFLOW HYDRAULICS~ DEPTHCFEET) = .30 HALF STREET FLDODWIDTH(FEET) -8.54 FLOW VEL..OCITYCFEEt/SEC.)::: 1.64 DEPTH*VELOCITY ~ .. 49 **************************************************************************** FLOW PROCESS FROM NODE ::::;7. 00 I S CODE "= ---------------------------------------------------------------------~------ »»>COMPU·fE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< =~=====================================================~==================== • DEPTH OF FLOW IN 18.0 INCH PIPE IS 3.4 INCHES PIPEFLOW VELOCITYCFEET/SEC.' = 11.8 UPSTREAM NODE ELEVATION = 372.00 DOWNSTREAM NODE ELEVATION ::: FLOWLENGTH(FEET) = 70.00 GIVEN PIPE DIAMETERCINCH) = PIPEFLOW THRU SUBAREACCFS) - TRAVEL TIMECMIN.) = .10 r·'IPINt---.1 I 1'·IC3B N :::: • 0:1. ::::. 18.00 NUMBER OF PIPES - TC(MIN.) = 15.49 FLOW PROCESS FROM NODE :34.00 TD NDDE ~~;5. 00 IS CDDE :::: :1. ,_ • .,~ ............................ HO ••.. 0 •• _ ... _ ... q ••• _ ..... NO ................................. _ ....... __ .... ,,, ...... H'" .................... , .... __ ................................................................ -_ ................. -0-..... __ .............................. ~ ••••• -............................ -............... -............... "0, ..... . "> "> .. : ... : ..... r,' {Yl' T n t··1 ell t"II:~·r 1··1 n n I !\j ] ... !' I· I".:: l (::' 1 J P ~; r'l:::-{.:-01" I (' I \, c:: I ,::--.,.. .,.. .,.. .,.. .,.. •• " ,',' .,of ........ I MO' .... ......... ,. , •• f ... \;.l ..• _.'I"'I,'\' .... ! 'I !'t<! ~I'1 .... 1 " ... 1, ... ) " " " " " I • SOIL CL(~SE:;IFIC(iTIol\1 IF3 "D" 53 I I\IGL.E F (ltl I 1.... "{ DEVEL..OPf'~·IENT PUNDFF CiJEFF I C I EI\!T .... . ~::.i~:jOO INITIAL SUBAREA FLOW-LENGTHCFEET' -100.00 UPE)TF~EA1"1 EL..EV("~T I Ol,,! = :::::7 (;,,, 00 DOWNSTREAM ELEVATION = ELEVATION DIFFERENCE = ~ts7t LI· tI ~)() :2 il ()() URBAN SUBAREA OVERLAND TIME OF FLOWCMINUTES) - 10 YEAR RAINFALL INTENSITY (INCH/HOUR) = 3.420 SUBAPEA RUNOFFCCFS) -.38 TOTAL AREA (ACRES) = TOTAL.. RUNOFF (CFS) -":; :::::' 11 .... :: •••• 1 **************************************************************************** FLOW PROCESS FROM NODE :36. 00 I f:3 CODE ~:: »»>COMPUTE STREET FLOW TRAVEL..TIME THRU SUBAREA««< ==========~=========~============================~===========~=============:: UPSTREAM ELEVATION = 374.00 DOWNSTREAM EL..EVATION = 372.00 STREET LENGTH (FEET) = 500.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALL..(DECIMAL..) -.0200 53PECIFIED NUMBER OF HALFSTPEETS CARRYING RUNOFF = 2 **TRAVElTIME COMPUTED USING MEAN FL..OW(CFS) -1.42 STREET FLOWDEPTH(FEET) = .26 HALF8TREET FLOoDWIDTH(FEET) = 6.88 AVERAGE FLOW VELOCITYCFEET/SEC.) -1.20 PRODUCT OF DEPTH&VEL..OCITY = .32 STREET FLOW TRAVELTIME(MIN) = 6.94 TCCMIN) = 15.24 10 YEAR RAINFALL INTENSITY (INCH/HOUR) = 2.31:1. sox!.... CL(·~E;SIF·ICATIDN IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAPEA AREA (ACRES) = 1.60 SUBAREA RUNOFF (CFS) -2.03 SUMMED AREACACRES) = 1..80 TOTAL.. RUNOFF (CFS) -2.41 END OF SUBAPEA STREETFLDW HYDRAULICS~ DEPTH(FEET) = .30 HALFSTREET FLOODWIDTH(FEET) -8.54 FLO!;) \/ELOC:r. TY (FEET I E':~EC.)::::: j. n 4~:~ DEPTH·)[ot../EL..ClC I TY :::: . 42 ~*************************************************************************** FLOW PROCESS FROM NODE :36. 00 "1"0 r'JClDE ~::7 • 00 IS C::c)DE ::::: ·»»>COMPUTE PIPEFLOW TPAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< 4 ============================================================================ DEPTH OF FL..OW IN 18.0 INCH PIPE'IS 3.0 INCHES PIPEFLOW VELOCITYCFEETiSEC.) = 12.7 UPSTREAM NODE EL..EVATIoN = . 372.00 DOWNSTREAM NODE ELEVATION = 363.00 FL..OWLENGTH(FEET) = 50.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 1.8.00 NUMBER OF PIPES -1 PIPEFLOW THRU 8UBAREA(CFS) -2.41 TRAVEL TIMECMIN.),= .07 TC(MIN.) = 15.31 **************************************************************************** FLOW PROCESS FROM NODE 36.00 TO NODE 37.00 IS CODE = 8 • ' ._-... -.~;: .:;: .;: .:;:; ~~;~; .:~~ :.~ .;~ ~~; ~:,~ -~ ~;; --~~ ;:.;~;' ;~~ ;.;~ ~~~ ~ ... :;~ ;:; .... ~~; ~ ·i· ~.~ ;:~;~ ;:.~ ~~ ..... ;.~;, ;.~: ~~~ ~~ ... ;~~ ~:~~; ~~ :~~ ::;~ :;~ :::~ ::;~ ........................ -..... _ ..... -' ....... --...... --.... -........ -.......... -.... . , ==========================================================~=====~=========== 1Q YEAR RAINFALL INTENSITYCINCH!HOUR) = 2.305 SOIL CLfi!:3SIFIC('·)TIDN IS "D" SI~IGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA (ACRES) -2.20 SUBAREA RUNDFF(CFS) - ·rO""'(·)L {:"IF~F{~ (ACHEE;)·.. 4. on TOT(il.. .. Pl.JI"·.IOFF ~CFS) :::: ~5. :,;;:0 TC (1'1 11\1) =:" 1. 5. :3 :I. P) "7 {::I .s:M II ,. l FLOW PROCESS FROM NODE S7" 00 fO !\IODE 44 .. 00 IE CODE ::::; 4 >:>:> > >CClt"!PUTE PI PEFL.O!,'J TF~rIVEI.... T I t:lE TI··!nU SUBP1F::E(.)< <: <: <.:: , "~ ~ ~~~~~~;~ ~;~ ~: ~~ ~ ;~~~ ~ ~ ~~~~~!;~;~~; ~: ::::~;~; ~~~~~ ~",", .. ,.~="'" ~ =," ~ ",,,,, '''''~~'''' ~,,~ '" PIPEFLOW VELOCITY(FEET/SEC .. ) = 9.5 UPSTREAM NODE ELEVATION = 363.00 DOWNSTREAM NODE ELEVATION = 342.00 FLOWLENGTH(FEET) = 500 .. 00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 18 .. 00 NUMBER OF PIPEE -1 PIPEFLOW THRU SUBAREA(CFS) -5.20 ·rF::t:I'-./El.... T I HE <t-1 H-I .. ) ;:;;; .. ~:lB TC (ttl IN .. ) ;:;; 16. 19 **************************************************************************** 37.00 TO NODE ----------------------------------------------------------------------------»»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< =====================================================================s====== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) = 16 .. 19 RAINFALL INTENSITY (INCH./HOUR) = 2.22 TOTAL STREAM AREA (ACRES) = 4.00 TOTAL STREAM nUNOFFCCFS) AT CONFLUENCE = 5.20 *************************************************************~************** FLOW pnOCESS FnOM NODE 38.00 TO NODE 39 .. 00 IS CODE = 2 •.... -.-.--....... -........................................................ -.................... , ... -........................ , -............... -.................. -........ -_ ......................... , .................... ' ...................... "'" ............. " ..... -......... _ ......... -..... -... .. »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««{ , ============================================================================ t::;CJ I L.. CL..PIf3E; I F I cn T I [)N I t:l "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL f3UBAREA FLDW-LENGTH(FEET) -100.00 UPSTnEAM ELEVATION = 357 .. 00 DOWNSTREAM ELEVATION = 354.00 ELEVATION DIFFERENCE = 3 .. 00 URBAN SUBAREA OVEnLAND TIME [)F FLOW(MINUTES) -7.978 *CAUTION~ SUBAREA SLOPE EXCEEDS COUNTY NOMOGRA~~ DFf::-I NIT I ON. E X Tn?·~pc!LtC\T:r. Dr',1 OF 1\IDt':IClGRnF'H t...If3r~~D. 10 YEAR RAINFnLL INTENSITY(INCH!HOUR) = 3.509 E)\"'!F.::{:'!nE(~ R!...!Nf]FF (CFf:3) .... .. ~::;9 TOTAL AREA(ACRES) = TOTAL RUNOFF(CFS) - **************************************************************************** FLOW PROCESS FROM NODE :~:'9. 00 TD NODE £1-0 .. 00 I :~3 CODE ;::: »»>CO~!PU1'E STREETFLDW TRAVELTIME THRU SUBAREA««< ======================================================================~====~ UPSTREAM ELEVATION = 354.00 DOWNSTREAM ELEVATION = 350 .. 00 STREET LENGTHCFEET) = 500.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STnEET CROSSFALL(DECI~AL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARnVING RUNOFF = 2 ·*·1"TT((::)'··JEL..T I !'lE cm·1F'l.n ED I.E~ I NC3 1"1 E (.:1 hi FI .... mJ (CFE) ".. ;'5 .. 17 STnEET FLOWDEPTHCFEET) = .. 35 HAL..FSTREET FLCJODWIDTHCFEET) = 11.02 (.'I~/En(~c:JE FI ... CJ\'~ '..JELDC I T'y' (FEET !3EC .. ) :::;; 1. " 9.f.!. PRODUCT OF DEPTH&VELCJCITY = .67 STREETFLOW TRAVELTIMECMIN) = 4.30 TCCHIN) = 1.2.27 ~~********~*~*************************************************************** FLOW PROCESS FROM NODE 4·{.1·" 0(1 It:: CD DE ::: :>:> >:> >CQt--'!PUTE PI PEFLen'·) TFU4Y'E:I ... T I tIlE THFUJ EH..JE:('~F~E{:1< < -::: -::: <: I ==~~~~~~~;~;~~~~7~~:7;~~!7~~~~;;~~:7~:::::~;=~~~~~~'~============""==,,====,,~== PIPEFLOW Y'ELOCITY(FEET/SEC,,) = 7.5 UF'~:rn:;:E(:~lt/1 NonE EI....E\!(..\T I (Jt,-.! ::: 36~~. 00 DOI;Jt-··.I~:'Tf':;:E(.::lt·1 NODE [:::U.:V{:j T ION ::: ~~:'!.I·::;::. 00 PLOWLENGTH(FEET) = 500,,00' MANNINGS N = .013 I.:;) I Y'E::N P I FE D I (.)t"IETER ( INCH):::: 18" 00 NLIt"IBER OF PI r::'EE; ... 1 PI FEFLmJ 'T HHU SUB(:lPE(i (CFB) _.. 5. 20 TRAVEL TIMECMIN.) = .88 TC(MIN.) = 16.19 **************************************************************************** FLOW PROCESS FROM NODE :::),7" 00 TO NODE .i.1·4" 00 t S CDDF.: ::: 1. ............. __ ............ _ ...................... ~ __ •• _____ .......... ___ ... __ .. __ • ___ ................. _._ .. _ -_0 ........................... ".M ..... _ .... ___ • __ ..... _ ..... __ .......................................... __ .. _ .................................. "! ...................................... .;--... .. »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ~=================~==========================================~============== CDNFLUEhlCE V{:~LUE~3USED FOR I I\IDEPENDEI\IT GTRE:'(.·~t··1 2 PIHE ~ TIME OF CONCENTRATION (MINUTES) = 16.19 RAINFALL INTENSITY CINCH./HOUR) = 2.22 TOTAL STREAM AREA (ACRES) = 4.00 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 5.20 ***************************************************~*********~************** FLOW PHOCESS FROM NODE 38.00 TO NODE 39.00 IS CODE = 2 • . .... -~. ~~ .: •. ::. :. ":~ .. : :'r': .... c .. ·."j·t·· .: ............... = :~ .... f·~·j"·· .... ~r·· _ •. -::'.: .: ... ~ .......... ~~ .... , ...... (.: .:~ ":.: .~ •... ~ .. -.~ ..... ~ ~~ ..• ~~ .~~ .:~ .. :~ ... ~ .. :: .... _ ....................................... -................... " .. -........ -..... -.... . . ,:' .,:' .,:' .,:' .,+: (-1 . I ..... \1 {--Ii.... 1'1 E. r H ... D ... NIl H'1 L. .::i L. E:. '1 F'~ t::. n FI N (.\ L. Y ;::i I ;;:i ':" ':" ':" <. ':" . • ==========================================================~=========~======~ BOIL.. CLPIf.3f.3IFIC:tlTIDN IS "D" E II\II.3I..E 1::'(1/":1 I L·t' DFSE:I...OF't'1ENT RI..JhlDFF CCiEFF I C lENT ::= .5!50() INITIAL SUBAHEtl FLDW-LENGTH(R~ET) -100.00 UPETREAM ELEVATION = 357.00 DOWNSTREAM ELEVATION = 354.00 ELEVATION DIFFERENCE = 3.00 l...!R [: (.4 1\1 :::;I...JBr1F':EPI O'-/E::HL..P1ND T I I"IE OF FLD(J·J (1'·1 I ~··.IUTEG) ... 7. '"?''''i'n '~;CPIUT IOt'l ~ !3UF,:{1F:;:EPI f:3LOPE EXCEEDB CDUNT"/ ND~1DGR('·\PH DEFINITION. EXTHPlPDLPlTION OF NOMOGRAPH USED. 10 YEAR RAINFALL INTENSITYCINCH/HOUR) = 3.509 SUBAREA RUNOFFCCFS) -.39 '7;'(:::-TOTAL APEA(ACREB) -TOTAL RUNOFFCCFS) -u .... 1 { **************************************************************************** FLOW PROCESB FPOM NODE :~:'9. 00 TO NODE 40.00 It3 Ce)DE :::: -----------------------------------------------------------~---------------- -::: ::::::: :::::::::::::::;: =:: ::::: :::! :::: ::::: ::::: :::::::::: ::::: ::::: ::'.!::::: :;::: :::::,:::::::::: ::::::::::::::: :::;: ::'.:: ::::::::: :-,;:: ::::: ::::: ::::: :::: :::::::::::::;::::: :'.:::::::'0;: :-.:.:::::::::: ::::;::::: ::',!:::::: ::::: ::::: ::::: :::: ::'.:: :::: ::::: :.::::::: ::::: :::: :1::: ::::: :::::;:::.: ::::::::: ::::: :.::: ::::: =. :."::":;::: :::: : .. ::: ::::::;:: UPSTHEAM ELEVATION:::: 354.00 DOWNSTREAM ELEVATION:::: 350.00 STREET LENGTH(FEET) = 500.00 CURB HEIGTHCINCHEG) = 6. STREET HALFWIDTHCFEET) :::: 28.00 STREET CROs9~AI...L(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARHYING HUNDFF = 2 **TRAVELTIME COMPUTED USING MEAN FI...OW(CFS) -5.17 STREET FLDWDEPTHCFEET) = .35 HALFSTHEET FI...OODWIDTHCFEET):::: 11.02 AVERAGE FLOW VELDCITY(FEET/SEC.):::: 1.94 PRDDUCT DF DEPTHi!:;;I·./ELDC I TY :"" • 67 tnr~tETF-L .. C)W TP{'WEL T I l'tIE O'1H.D :,: f.j.. ::::0 TC (1"1 I 1\1):::: 1.::2» 27 10 YE(..'~r.:; H{~Il\lF{)LL INTEN~3IT"{ (IhICH/!"!DUH) :::: 2. /:;!:"i/ I • • S I 1\1(3I..J~: F{.ilvl I LY DE\}EI..-'JPI·'IE:~I\IT nU!\!OF F' COEFF I C I EJ-rr :~-:: r. !5!500 SUBAREA AREA (ACRES) = 6.40 SUBAREA RUNOFFCCFS) = 9.35 SUMMED AREA(ACRES) = 6.60 TOTAL RUNOFFCCFS) -9.74 EJ\m OF· !:31...JB (..:1 RE(') BTREETF~l .. O\J,J 1··rl[ini~~UL I C~"3:: DEPTH (FEET) = .40 HALF STREET FLOODWIDTH(FEET) = 13.51 FLOW VELDCITYCFEET!SEC.) = 2.51 DEPTH*VELOCITY = .99 **************************************************************************** 40. 00 TD 1\IODE lVl·. 00 I i:~ CODE ::: »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFtED PIPESIZE««< 4 ============================================================================ DEPTH OF FLOW IN 18.0 INCH PIPE IS 6.2 INCHES PIPEFLOW VELOCITYCFEET!SEC.) = 18.1 I..../Pt3·fP Efl 1'1 NODE ELEV{::l T I Ot'·.l ::::: ::::.~:;O" 00 DOWNSTREAM NODE ELEVATION = 342.00 FLOWLENGTHCFEET) = 60.00 MANNINGS N = .012 GIVEN PIPE DIAM~TER(INCH) = 18.00 NUMBER OF P10ES -1 PIPEFLOW THRU SUBAREACCFS) -9.74 TRAVEL TIME(MIN.) = .06 TC(MIN.) = 12.33 **************************************************************************** FLOW PROCESS FROM NODE 40" 00 TO hlODE 44" 00 IS CODI:::: :::: 1 ==========================================================~=====~=~========= CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE~ TIME OF CDNCENTRATIONCMINUTES) = 12.33 RAINFALL INTENSITY (INCH.!HOUR) = 2.65 TOT {.·)L ~:3TnE{)t·/1 {~f\EA ({~CF\ES) :::: (:'. (,::.(i TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 9.74 **************************************************************************** FLOW PROCESS FROM NODE 41 . 00 TO hlDDE 42.00 IS COnE :::: ------------------------------------------------------------------------~--- =======~==================================================================== f:30 I L CL..(..'~:33 I F I C{-)T I DI\I I S II D II SINGLE FAMILY DEVELOPMENT nUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) -100.00 UPSTREAM ELEVATION = 365.00 DOWNSTREAM ELEVATION = 363.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) - 10 YEAR RAINFALL INTENSITYCINCH!HOUR) = 3.420 3UBAREA RUNOFFCCFS) - TOTAL ~REA(ACRES) = .20 TOTAL RUNOFFCCFS) -II :38 **************************************************************************** 42., (H) TO NDDE 4:::'. 00 I ~'3 CODE :::: (,::. ... __ ............... _._ ... _ .. 0 .... _ ............ _ ................ _ .................................................................••• ~ ............. _ .......... _ ............. ,_ ... _ ......................... __ ....... OM ......................... ~ .......... _ ................... M ... _._.;...._ .. __ M",,, _ .. ___ .. .;. ....................... .. »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ::::: ::::: !'.:.: ::::: !.-:: ::::::::: :::: :!.-: ::::: ::::: :::: ::::::::::= ::: ::.-: ::::: :::: ::.-:::-.:::::::: :'.": ::::: :::.-: ::::: ::::: ::::::::: ::::: ::::: ::::: ::::: ::::: ::::: :-.:.:: ::::: ::::: :::::::: ::::: :!!! :::: ::::: ::::::::::::::::;:! :::..-: :::: ::::: ::::: ::::::::!:-.::. :::::::::: :::~ :.:::; ::::: :.':'.: :::::".::: :.-:~ :::: ::::.::!:: ::=: ::: :" .. -:: ::::: =.:::: ::::~:;:: ::::: UPSTREAM ELEVATION = 363.00 DOWNSTREAM ELEVATION = 343.00 STREET LENGTH (FEET) = 600.00 CURB HEIGTH(INCHES) = 6. ST~EET HALFWIDTH(FEET) = 28.00 STREET CROSSFALL(DECtMAL) -.0200 SPEC I F I ED I\IUI~1E:EH DF !···IALF~nnEETB C(..'~Rrr·{ I hlG F\!..JNorr-:: =" ::;:: **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) 1~42 srREET FLOWDEPTH(FEET) = .20 ~ALFSTREET FLoo6wIDTHCFEET) = 3.57 I FfiUDUC:T fJF DEPTI .. ·liV/ELOC I ·f"y' ":: STREET FLOW TRAVELTIMECMIN) = 3.47 TC (ITlll\~) ..... :I.:l" 7··/ :I. 0 YE{·~F: Fi:n I NFrll....L I N·fEt'~f:l I T\( ( :r. t'·.![:H/I··IDUr:;:) ::::: 2" 7::::;0 S;(] I 1.... CI....?~~;E; I F I cr-rr I 01\1 I S \I D" SINGLE FAMILY DEVELOPMENT RUNOFF CDEFFICIENT = .5500 SUBAREA AREA (ACRES) = 1.40 SUBAREA RUNrn=F(CFS) -2,,10 E:lI..WII·· .. IED riPEn (f.~CF~ES):~ 1 • 60 TOT {~I.... F:Ut\IUFF (CFEn .".. 2. 4H END OF SUBAREA STREETFLOW HYDRAULICS~ DEPTH (FEET) ::: . :~:~:~:; HnLFSTREET FLClClDl!·J I DTH (FEET) ..... ~5" :2:~:' F·LDlJJ \JELUC I TY (FE:ET / ~3EC.) :::-" ::::." 17 DEPTI-I·9l-VEL.DC I r·{ :::: " T::' FLOW PROCESS FROM NODE ll·:3" 00 TO NODE 44. 00 ]. sconE :::: ........... ~ •........... " ..................................... 0 ................................ _ .. _ .................... _ .... , ... _ .. H' .......... _ ....................... __ ....................... _ ............. _ ............... Om ...... ,! .. "!" ..... __ .. _ ............ 00 ....... ,!'" ..... __ .......... __ 0 .................... _ ... _; ..................... . »»>COMPUTE PIPEFLOW lRAVELTIME THPU SUBAREA««< »»>USING USEP-SPECIFIED PIPESIZE««< ::::: ::::: ::::: :. .. ,:: :::: :::: ::::: ::::: ::::: :::: ::::: ::-:: ::::::::::::::: ::'.:: ::::::::::: == =.: ::::::::: ==::::: :::::::::::::: :::::::::: ::::: :::: ::::: ::::: ::::: :::~ :::: :-.... .:.::::::::: ::::~::::::::::::::: ::::::::: :'.:: :::: :'.::: ::::.::::: :::: :::: :!!: :::: !" .. -':' :::::::::: ::::: ::::: ::::: ::::; ::::: ::'.!::::::.::: ::::::::: :.."::: ::::: ::::: :::::::.-: ::::: :::: ::::: DEPTH OF FLOW IN 18.0 INCH PIPE IS PIPEFLUW VELQCITY(FEET/SEC.) = 5.9 UPSTREAM NODE ELEVATION = 343.00 DOWNSTREAM NODE ELEVATION = 342.00 FLOWLENGTH(FEET) = 50.00 MANNINGS N = .013 GIVEN PIPE DIAMETER (INCH) = 18.00 NUMBER OF PIPES -1 PIPEFLOW THRU SUBnREA(CFS) -2.48 TRnVEL TIME(MIN~) = .:1.4 TC(MIN.) = 11.91 *************************************************************~**~*********** FLOW PRDCESS FROM NODE 43.00 TU NODE 44.00 IS CDDE = 1 • . ... "-~~: ~;;:; ~;;: .~~:; ~~~;~ ~~. ~~ ~\~ ~~ ~~~ ~~ ... ~~. ~.:;;,; ~~ i,~: ~~ ~~ ~.; ~~:;~ ~~:: .... ;'~ ~:: ~~ ~ ~~ ;,~~ ... ~;.: ;~; ~~ "". ~~; ~~; ~~ ~~: ;.~;~;,~ ~~~~; ;;~ :;~. :;;~. ::~.:~ :;~ " ......... " ... -_ ...... -." ...... " .. -". " .. _ .... "-.. " ~ ... "." ....... . »»>nND COMPUTE VARIOUS CONFLUENCED STREnM VALUES««< ===========================================================~================ COhIFL..tJr::I\ICE '''/{.:iL.UEE3 USED FClH INDEPENDENT STHEt:')I··"1 LI· (·~r:(E~ TIME OF CONCENTRnTIDN(MINUTES) = 11.91 FUUI""-·IF(')LL H·ITENfHTY (INCH. IHDUr·~) ::::: 2. /"1 TOTAL.. STREAM AREA (ACRES) ~ 1.60 TOTAL STREAM RUNOPF(CFS) nT CONFLUENCE = CDNFLUENCE INFORMnTION~ STREAM RUNOFF TIME INTENSITY 1'.IUt'"iF3EF;: (eFG) (NIN.) C INCI·-\/HCJUR) 1 .. ':; :l (}:~~ i -w H3 :72. !53~:3 .:: .. " . .... ' · ::':~ ~5 ff 20 :I. 6 · :I. C;;I :2: . l'j'-I,,":r .r::' ,~:.._:I .. ~ .:":,. 74 :l ~~ 11 ~5:3 ~~: II 65() , ... 1 . oil .-" .i.1·£3 :I. 1 9l :2 u ... ., .... ( ... , ,I::. n · 1'.)7 RAINFnLL-INTENGITY-RATIO CONFLUENCE FORMULA USED ~DR 4 STREAMS VnRIOUS CONFLUENCED PUN OFF VnLUES ARE ns FOLLOWS~ COMPUTED CONFLUENCE ESTIMATES nRE AS FOLLUWS~ RUNOFF (CFS) = 37.23 TIME(MINUTES) = 13.178 TOTAL AHEACACHES) = FLO~ PROCESS FROM NODE 44" 00 TO NDDI:~ ~75(i" 00 I f:3 CODE ":" .......... -." ......................... _ ................... oo ... , ....... -..... , ................... _____ ..... _ ..... _ ............. _ ....... Oo ..................... .; ............................................. _ ....... _ ........ ,;. ............ _ .................................................... _ -... "'J'''-............... !"" ... __ '" -_ ... -.. _ .... . »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ==~=================~========~=~~===:====================================~=== DEPTH DF F! ... (][..o·) I !'··.I 36. (1 I Nei···! PIPE :r. !3) 1. ~~:..? I I.,ICHES I • • .M! ,,,. ..... ... , .........• ~. \ i • • .... I .... I • • •• J ... _ "'M ". • • ...... .r. .t • t..lF'E=;·n~r:::.rit'l !\!ODE ELEVAT I Clhl ::::: DoWNS'fREAM NODE ELEVATION ::::: ::~; ~)~' II () () MANNINGS N::::: .013 F'LD~'JI. .. El,lf3TI"1 (FE:ET)::: B~5(). 0':) GIVEN PIPE DIAMETER(INCH) ::::: 36.00 NUMBER OF PIPES - F' I F'E:FI.. .. D~!·J ·T'I·IPLJ ~;UB('~PE{':l (CFt3) "" "!~-; t'')"":!' .... 1/ I: ..l: ...... , ·n~(.YjE::t._ 'LlI"IE (1'-'11 N.) :.": • 94 TC(MIN.~::::: 14.12 :I. **************~************************************************************* !50" 00 I ~3 CODI':; ::: ------------------------------------------------------~---------------------> >:> > > DES I GN(=i TE I NDEPEt-~DENT STREAI'1 FOR CClNF'LUENCE<: <: <: <: <: =:::::=::::::::::======:::::=====:::::=:::::=:::::::::::::::~=================================================== CONFLUENCE VALUES USED FClR INDEPENDENT STREAM 1 ARE~ TIM~ OF CONCENTRATION (MINUTES) = 14.12 H{i I t\IF (·~LL. I 1\~TI~::1\1~3 I TY (I NCH. / HOI...JF:):::: ::':: " f1::~; TOTAL STREAM AREA (ACRES) = 26.30 'rOT m_ ~1Tfi:[';::(.:il·:1 fiUNOFF (CFB) (.:i T CONFU...JEI\ICE :"= ::~;7 • 2:::;; **************************************************************************** FL.OW PfiOCESS FfiOM NODE 4E::. 00 TO hiD DE: ..... __ M'" _0 .. ___ M_ ..... MM. MO ........... _ ......................... _ ........ _ -. ............ _ ...... ______ I __ 0 M .......... OO ..... , .. _ N." __ ............. 0-' .......... -0" .......................... "0, ........... _M' ............... _ ..... 0 ....... __ .................... , ............................. --.. 0 ....... -' -_ ... 0 •• --_ ...... .. »»>RATIONAL METHOD INITIAL SUBAREA ANALY3IS««<: ===========~========~========================================~============== SOIL CL..AE1BIFICr-HIDN IS "n" SINGLE FAMILY DEVELDPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-L.ENGTH(FEET) -100.00 UF'STREAM ELEVATION = 343.00 DOWNSTREAM ELEVATION = 341.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAfiEA OVERLAND TIME OF FLOW(MINUTES) -8.299 10 YEAR RAINFALL INTENSITYCINCH/HDUR) = 3.420 SUBAREA RUNOFF (CFS) -.38 TOTAL AREA (ACRES) ~ TOTAL RUNOFFCCFS) -"":;'0 :J .... ' r .... ~ **************************************************************************** FLOW PROCESS FROM NODE 49. 00 TO t"o.IDDE ~:;O. 00 I f3 CDDr::: := ---------------------------------------------------------------------------- ======================================~============~==:::::===============~===== UPSTREAM ELEVATION = 341.00 DClWNSTREAM ELEVATION = 309.00 STREET LENGTH (FEET) = 800.00 CURB HEIGTH(INCHES) = 6. DTnE['r H('·YLFV,J I D"I"H (FEET) ::: 2B. 00 ~3TF~EET CHO~;SF{~!L.L.. (I)EC I 1'1{~1..,,) _.-.0200 ~3PEC I r--I ED t'·.\l .. lt"mEF: OF 1 .. ·!{:II....FSTREE-::Tf.-3 C(:!F{F:;:Y I 1'·.1(3 m.JI'·HJFF· :::: :::: **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -2.47 STREET FL.OWDEPTH(FEET) = .23 HALFSTREET FLOODWIDTH(FEET) = 5.23 AVERAGE FL.OW V8_0CITY(FEET/SEC.) - PRODUCT OF DEPTH&VELOCITY = STREET FLOW TfiAVELTIME(MIN) = 4.22 "1":; n l .... 1 10 YEAR RAINFALL INTENSITYCINCH!HDUR) = 2.624 f:3CJIL CU·~i3ElIFIc(.YrION IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA (ACF:ES) = 2.90 SUBAREA fiUNOFF(CFB) - SUMMED AREA (ACRES) = 3.10 TOTAL RUNOFF(CFS) -~.56 END OF SUBAREA STREETFL..ClW HYDRAUL..ICS; DEP~H(FEET) = .26 HALFSTREET FLOODWIDT~I(F~ET) -6.88 FLOW VELOCITY(FEET/SEC,,) = 3.85 DEPTH*vEL.OCITY = 1.02 I • I »»>0ESIGNATE INDEPENDENT STREAM FOR CoNFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< ====================================~===========~==~=====~~=~===~=========== CONFLUENCE VALUES USED FOR INDE~~NDENT STREAM 2 ARE= TIME OF CONCENTRATION (MINUTES) = 12.~2 RAINFALL INTENSITY (INCH./HDUR) = 2.62 TOTAL STREAM AREA (ACm~S) = 3.10 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = CONFLUENCE INFORMATION~ BTr:;:f:~:(.~n RUI'¥JFF T I t"IE ~ I'HE:NS I T\' t""IUt"IBEn (CFa) (I"'IIN.) (I!\!CH/HDUR) ------------------------------------~--------------------------------------- 1 4.56 :t LI,.12 :'2 II .tl· ~:: (3 2" c:)2 .. q· Pf.:i I !\IF flLL .. , .. " I NTEI\IS I TV "'''[''-::(,:')T I Cl CONFL..I.Jf:.r\ICE FCiF~I'''IULri Ul3ED FOR :~: STr:~E(1t"I~:; V(.:lf': I OUS cm\~I:::·LI.JE::NC[7]) 1=(1...1t'·,IDF'F \"(':~UJES ARE (.7:jS F:DL"Lm'm~ 41 r. 4~5 ~::'C';'n ot COMPUTED CONFLUENCE ESTIMATES AnE AS FOLLOWS: RUNOFFCCFS) = 41.45 TIME(MINUTES) -14.117 ToTriL nREri(ACRES) = 29.40 **************************************************************************** FLOW PROCESS FROM NODE !'s0. 00 TO NODI:':: 48. 00 I~3 com:;: ::::: -------------------------------------~----------------------~--------------- »»>COMPUTE PIPEFlOW TRAVELTIME THRU SUBAREA««< »»>USING USER-sptCIFIED PIPESIZE««< ====~======================================================================= DEPTH OF FLOW IN 36.0 INCH PIPE IS 15.5 INCHES PIPEFLOW VELOCITYCFEET/SEC.) = 14.3 UPSTREAM NODE ELEVriTION = 309.00 DOWNSTREAM NODE ELEVriTION = 305.00 FLOWLENGTH(FEET) = 130.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES - PIPEFL..OW THRU SUBAREriCCFS) -41.45 TRAVEL TIME(MIN.) = .15 TC(MIN.) = 14.21 :!. *********************************************************~****************** FLOW PROCESS FROM NODE 50.00 TO NODE 4·8. 00 I S CODE ::::: :I. -------_._----------------------------------------------~-------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ======:======================================================~============== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE= TIME OF CONCENTRriTION(MINUTES) = 14.27 Fi:?::i I NF' (,:)1....1.... I NTEI\!~3 I TY (I NCH n / HC)l..ln) :::: 2" 4·:!. TOTAL STREAM AREA (riCRES) = 29.40 TOTAL.. STREAM f':UNOFF(CFS) AT CONFLUENCE = 41,,45 *********************************************************~~************~**** FLOW PROCESS FROM NODE 4~.5 ,i O(! TO NDDE ,q·6. 00 I :::; CODE: ::: /"', 'l::. ----------------------------------------------------------------------------»»>RATIONAL METHOD INITIAL SUBAREA ANALVSIS««< =======================================~=============================~====== :::;011.... CL(.:i:::3ElIF Icr,T IDI\I 13 '"0" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL.. SUBAREA FLOW-LENGTH (FEET) -100.00 UPSTREAM ELEVriTION = 347.00 DOWNSTREAM ELEVATION = 345.00 ELEVATION DIFFERENCE = 2.00 'JI::;-T?i:il'l ':3UJ3{:lPE::r-i DVEf~U:~t'·.!n T J j'1E elF" FlJ)I:,j (II J hlUTF5 ;. ... , 1 0 ··{E{·'1F~ n(.,~ I NF{::d ... L. I l\n:Et'·,IH.[ TV ( I t\ICH/+mUn) :::: :2:;.4:;;::0 TOTAL AREA (ACRES) = TOTAL RUNOFF (CFS) = FL.Dl'4 Pr:(OCE:::3S FROI"1 I'JODE l1·t:,. 00 'TO NODE l4--,i. 00 H3 CODE ::::: (::; , ..... --:;: ~::: ~::: ~::: ~:;: ~ ;~; ~:~ ;;: ~j ~~:: ~~ -_. ~ ~~;~ ~ ~;~~: ~~ ~ ~:~ -~ ~~~ ;;~ ~~ ~~,;;~ ~:~:~ -~. ;::~ ;~~ .. -:~~ ;.:~;~ ~~ --; ~~ ~ ~ ~;~;~: :::~ ::~. ::~. ::~ .. ~;~ ............. -_ ... --_ .... -...... -... ------_.-_.-..... --_ ....... -_ .. --- ============================================================================ UPSTREAM EL.EVATION = 345.00 DOWNSTREAM ELEVATION = 305.00 • • STREET LENGTH (FEET) = 1000.00 CURB HEIGTH(INCHES) = 6. STREET HAL.FWIDTH(FEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 'Yd~TnAVELT I HE Cm-1PUTED us I NO ME('~N FLCJl.'J (CFS) .--~5 n 56 STREET FLOWDEPTH(F~ET) = .28 !·..j(.·~ILF(3TnE::ET FL.ODDll! I DTI .. ·I (FI:::ET) ::::: 7. 71 AVERAGE FLOW VELoCITY(FEET/SEC.) -3.90 PRODUCT OF DEPTH&VEL.OCITY = 1.09 (:::;TF:EETF'L .. U!!J TFa-Y/E:LTH-IFE (t"lnn ::: 1.1·.20 TC nUN):::: L? .. :;:57 lO YE(..:IFi: nAINF('~LL INTEI,mITY (H·.ICH/I .. ·IDl.m> ::: 2.616 !3UII.. .. C::I...PI~:;EHFICATIm·j IE; liD" SINGLE FAMILY DEVELOPMENT nUNOFF COEFFICIENT = .5500 SUBAREA AREA (ACRES) = 7.l0 SUBAREA RUNOFFCCFS) -10.22 SUMMED AREACACRES) = 7.30 TOTAL RUNOFF (CFS) -lO.59 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTHCFEET) = .33 HALFSTREET FLOODWiDTHCFEET) -10.20 FLOW VELOCITY(FEET/SEC.) = 4 .. 58 DEPTH*VELOCITY = 1.5t **************************************************************************** FL.oW PROCESS FROM NODE 47'. 00 TO j\jODE 40 r. 00 I!3 CODE ::" __ ....... _ .. _ .. _ .......... ,.OM ..... ", ............ _ ......... M,,, ............... _ .................... _ ......... _ ............ _ .................................... " .. '.0-............... -0" ..................................... - _ ......................................................................... --.................. -............................ .. . > > > > :::·CC)I'-·IP!..JT'E PI PEFL..fJl·'J TR{·~VEL..T I t·1E THFUJ :::;t.JBnm::'(:i<: < < < <: »»>USING USER-SPECIFIED PIPESIZE««< ========~=================~================================================= DEPTH OF FLOW IN l8.0 INCH PIPE IS 11.9 INCHES F' .[ PEFL.CJ\'·.J \/[:1. .. 0[: I T\-r' (FEET / E[':;:C .. ) ::::: E: .. l::. UPS1REAM NODE ELEVATION = 306.00 Dm·J!"··.1f.3TFi:E·:rll,·1 NODE El...E\/{·Yl I ON:::: ~:;o:::.;, 00 FLDWLENGTH(FEET) = 50.00 HANNINGS N = .013 GIVEN PiPE DIAMETER(INCH) = 18 .. 00 NUMBER OF PIPES -1 PIPEFLOW THRU SUBAREACCFS) -10.59 "l"nr:j',.,l[L. T I !·flE.:~ <t''l:n''L)::::: • 1. (l TC 0·1 HL) :.':: 12. {.) 7 **********~************************************************~**************** FLOW PROCESS FROM NODE L!·7" 00 TD "lODE:: 4[:3 .. 00 I f3 c::oDE ::::: 1 ---------------------------------------------------------------------------- .> >:> > >DEf.:; I f31\!t:iTE I ND[F'ENDENT f.:;Tnr:::rij"'! FClF~ C(]NF'LUEt'·.ICE< <: <: <: <: »»:>AND COMPUTE VARIOUS CONFLUENCED STREAH VALUES««< ~====~=========~================================:========~================== CONFL.UENCE VALUES USED FOR INDEPENDENT SlFi:EAM 2 AnE: TIME OF CONCEN'I"RATION(MINUTES) = l2 .. 67 F{('U j\IF {iL.L 1. hiT EI\I f:3I TY (I NCH. / i .. ·lourn::" :2. f;JO TClTAL STREAM AREA (ACRES) = 7.30 TOTAL 8TnEAM RUNOFFCCFS) AT CONFUJENCE = 10.59 CONFLUENCE INFORMATION: STREAM nUNOFF TIME (CFS) (t"1 I 1\1 n) ( I NCI-·! / HOt..!H) ______________________________________________________ --------------7------- 1 t.j·1 , il~5 1 1.1· • :,~~ior ;~ 11 ·q·1 1 ,-, 10. 59 12. t.J7 ,.~ (:jO~::' ,I::. .~::. u I • I ! • ~ ••• , • I·.... • "" '._ .... ~ ~ COMPUTED CONrLUENCE ESTIMATES ARE AS FOLLOWS: rU..INUFT (CF~~;! C":: ~j 1. • 2i":;. T I !"'IE (1'''1 I NUTEB) _ .. , 14" 269 TOTAL AREA (ACRES) = ************»*************************************************************** FLOW PROCESS FROM NODE 4B. 00 TD t'"IODE :1.27.00 IS CODE :::: »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USE~-SPECIFIED PIPESIZE««< ============================================================================ DEPTH OF FLOW IN 36.0 INCH PIPE IS 17.6 INCHES PIPEFLoW VELOCITY(FEET/SEC.) = 14.9 UPSTREAM NODE ELEVATIUN = 305.00 DOWNSTREAM NODE ELEVATION = 302.00 FLOWLENGTH(FEET) = 100.00 MANNINGS N = .013 G Jl.)EI".~ PIPE D I {:)I"iETER ( I NCI'-\ i ::: ::~;6 .. 00 h!Ul"1BE'F~ OF' P I PES - PIPEFLOW THRU SUBAREA(CFS) -51.26 TRAVEL TIMECMIN.) = .11 TC(MIN.) = 14 .. 38 **************************************************************************** 127. 00 I~~ com:: :::: 1. =======================================================================~==== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1. ARE~ TIME OF CONCENTRATIONCMINUTES) = 14.38 RAINFALL INTENSITY (INCH./HOUR) = 2.40 TOTAL Sl'REAM AREA (ACRES) = 36.70 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = **************************************************************************** FLOW PROCESS FROM NODE 12~5. 00 Tll I\IODE 126. 00 1::3 CODE :::" oj ... ___ .................................................. _ ............ _ ... __ • __ ..... _ ........ _ ........ _ ...... _ ... _ ••• _ ... _ ...................................... _ ...................... 0 .. _.', 00_ ...................... _ ..... _ .... _!" ___ ............. _ .. , ..... -........ -... __ ................ ~ ..... _ .................... _-.............. ..;, =========~=========================~==================================~===== SOIL CL..?'iE:;1:;IFIC(\TIDt\! IS Ilf}I' PUHf:.iL.. DE'\)ELClPI'·IENl HUNOFF C:OE::FF I C lENT "':: .. 4!;500 NATURAL WATERSHED NOMOGRAPH TIME OF CONCENTRATION WITH 10-MINUTES ADDED = 14.03CMINUTES) INITIAL.. SUBAREA FLOW-L~NGTH(FEET~ -800.00 UPSTREAM ELEVATION = 347.00 DOWNSTREAM ELEVATION = 301 .. 00 ELEVATION DIFFERENCE = 46.00 10 YEAR RAINFALL INTENSITY(INCH/HDUR) -2.438 SUBAREA RUNdFF(CFS) -1.54 TOTAL AREA (ACRES) = 1.40 TOTAL RUNDFF(CFS) -1.54 **************************************************************************** FLOW PROCESS FROM NODE 1 ~~7 • 00 IS CDDE ::::: »»>DESIGNATE INDEPENDENT STREAM FOR CONFlUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< :I. ===============================~===============================~============ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE~ TIME OF CONCENTRATIDN(MINUTES) = 14.03 ' RAINFALL INTENSITY (INCH.!HOUR) = 2.44 TOTAL STREAM AREA (ACRES) = 1.40 TQ1AL STREAM RUNOFF (CFS) AT CO~WLUENCE = :1..54 I • I (CFB) (1'-11N,,) (INCH!I"'IOUH) -------------------------------------~-------------------------------------- ,., .-::. 14" 0::::; RAINFALL-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: c::C)t"IPUTED CONFLUENCE EBT I t'l(..nT::f3 {::lRE (:~t1 FDI....I.. .. (J!,IJf.::;: F:LH .. \OFF (Cr:'S):::: 52 .. 7"7 'lII"1E (1\1I!',IUTEt:;) ..... 1,'1·" ::::;:~3:1. TOTAL AREACACRES) = ************************************************************~*************** FLOW PROCESS FROM NODE 49,,00 TO NODE !50" 00 I i.:3 CODE. ::: --------_._._----------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ::::: :::: :::: ::::: :::::::::: :::: :::: ::::: ::::: ::::: ::-.: ::.:::::: :::: ::::: :::::::::::::: :.::::::;: :::::::::::::: ::::: ::::! ::::: :::: ::::-:::: ::::: :::;: =: ::::: :.:;:::: ;:::: ::::: :::: :.-::"::::: ::::: :::: ::::: =.: :::: :::: :.":: ::::: :::::;:::: :0 .. ":: :::: ::::: ::::: ::::: :::: ::::: ::::: ::::: :::: ::::: ::::: ::::: :::: ::::: ::~: :::: ;::: ;::: ::: ::::: ::!! :-.::: ;:::: ::::: ~30 I L CL..lciE)~3 I F I C{~T I ClN 1:::3 II D II SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-L..ENGTH(FEET) -l(~nOO L!p::rr n [JoWl [:I-E ~HYr I CJ 1\1 ::: f.IA 4 , 00 DOWNSTREAM ELEVATIClN = 442.00 ELEVA1'ION DIFFERENCE = 2.00 I...JHB("W .. I SI..JE:{:~HE{-~ (NEFH ... At\\D T II"'IE OF FI..JJIJJ (t····j I \'··U...ITEE3) ..... 10 YEAR RAINFALL INTENSITY(INCH!HOUR) = 3.420 ::)\J.Bj:'::jFi:E(~1 Pl...lh!OFF (CF~3) .... .. 3G T01'AL AREACACRES) = t:)() :1 .f ... • •• • TOTAL RUNOFF(C~S) - **************************************************************************** FLOW PROCESS FROM NODE ~:.;o. 00 TO r·.IODE -----------------------------------------------~---------------------------- =========~=========================================~======================== UPSTREAM ELEVATION = 442.00 DOWNSTREAM ELEVATION = 400.00 STREET LENGTH (FEET) = 750.00 CURB HEIGTH(lNCHES) = 6. GTHEET H("~I.. .. FI!·J I DTH (FEE':T) :::: :,2E:. (II) BTREET CRUS~3F f.~L..L.. (DEC I t,tP1L..) _.. ,,0200 t'3PEC I F I ED hIUt'1E3EP OF 1··\(:~L.F::3'rnEl:r:3 C(.:~Ht=;:Y I NG nUHDFT'::::: 2 **TRAVELTIME COMPLITED USING MEAN FLOW(CFS) -7.38 ::3'TPEET FI: .. m~DEF'TH (FEET) :0-:: .. 20 HAL..FSTREET FLOClDWIDTHCFEET) = 7.71 AVERAGE FLOW VELOCITY(FEET!6EC.) -5.18 PRODUCT OF DEPTH&VELOCITY = 1.45 STREET FLOW TRAVELTIME(Mlh!) = 2,,4:1. TC(MIN) = 10.71 10 YEAR RAINFALL.. INTENSITY{INCH!HQUP) = 2,,901 ~:3D I L CL(.:~~3t3 I F I c(.Yr I m·.\ 1:3 "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES) = 8.80 SUBAREA RUNCl~FCCFS) -14.04 SUMMED AREACACRES) = 9.00 TOTAL RUNOFF (CFS) -14.42 END OF SUBAREA STREETFLOW HYDRAULICS~ DEPTHIFEET) = .35 HALFSTREET FLOODWIDTH(FEET) -l1r02 FLOW VELDCITY(FEET/SEC.) = 5.4:1. DEPTH*VEL..OCITY = 1.87 **********************************************************~***************** FLOW PROCESS FROM NODE ~31 »00 TO NODE:: ~35. (H) I!:3 CODE ::::: ----------------_ .. _---------------------------------------------------------- >~»>CClMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ======================~===================================================== DE::plH Dr.::' FI...DiJ·) IN 1. 8. 0 :r. NCH PIPE IS 10.:1. I r\ICHES PI F'E}=-L..C':'j \'FL.OC J: TV ~ FEET! SEC r) ::::: 1 i.L 1. UPSTREAM NODE ELEVATION = 400 .. 00 r::·LD!:,JL.E::t'mrH (Fl::E::T) ::: 600" (i\) !···"\(:'il\II"\! I NE)!:3 I····! :::: " 0:1. ::::. GIVEN PIPE DIAMETERCINCH) = 18.00 NUMBER OF PIPES -1 F' I F'EFI....C!Ir\1 T~·IPU S;I...J.f3P1Fi:E('::1 (CFF~) _... .I. !.I·" 4:~~ Tnr)t·)E:L TJ:!\"i[:::(!V!II'.~.) ::: .71 TC(i"'1II\!.) :::: :l.:l. .. 4~;;:: I ·~~· * ~:t. -:\~. ~:f' ~i' .:~~ . .;~ ~!.~. -}~. ~~ •• ;~. :'t. --)t. -/{. :~. ':fi.. -t!, .;!{. ~~. ':fi.. ~~. ':Ii-~~ .. * ,*. ~~. ':j.. "* .. ~~ .. ;~ -)~.:/.---:"* ~ . .;,. ~~. ~~. ¥)t "*. * ~E-.!fi..'-:"t -:'* ~~. ~\~. '~i' -)~ ... ii· ~}i' H)':. '1t·· ~~. -::~: ·~r: .. *. ':A' ~~. -no .:~. '~':' .~I":. ~~. ~~~. -:'Jt. f(' ~~. 71' ·~t· .:~. -:)~ .. j~ .. *. -:1' ~"(. FLOW PROCESS FROM NODE 51,,00 TO NODE 55.00 IS CODt = :l. • I ................... _ ............. __ ..... __ ...... _ ................. ___ .. , .. __ 0 •• _.o. _Oo' __ .. 0 .. __ ..... __ .. __ ....... _ ..... _ ............................ _ ............. _. __ ..... _ .......... " ....... 0 ....................... _ •••.... .,~ ............... _ ... _ .. _ ~ ... _ ............................ -.................. _ .. _ ... -............ . »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ::::: ::.::: :::: ::::: :-:::: ::::: :=::. ::::: ::::: :' .. -:: :::: :::; ::::: ::::: :--"::::::::::::::: ::::: =.:::: ::::-::::::::!::::: ::::: :;::: :::'.: ::::: :::: .:::: ::::: := ::::: :::: ::::::::: :::: :::'.: ::::: ::::: :::: ::::: :::: :::: :::: ::::: ::-::: ':::: :::::::::: :::: :::::-::::: :::: :::: :::: ::::: ::::: :'.::: :::::":::::::: ::::: :::::::;:: ::::: ::::: ::::: :::: ::::: ::::: ::::: ::::: :::: :::: CDh!F!.J.JE::K!C\:: "'/ALUE:~3 !...If,3ED FOF~ I !\H)EF'E}·lDEJ,rr f:3THEPl!'1 1 P"::;;E f, TIME OF CONCENTRATIONCMINUTES) = 11.42 RAINFALL INTENSITY (INCH.!HOUR) = 2.78 TOTAL STREAM AREA (ACRES) = 9.00 TOTAL STREAM RUNDFFCCFS) AT CONFLUENCE = 14.42 ***********~0*************************************************************** FLOW PROCESS FROM NODE 53.00 IS CODE =2 ~============================================================~============== SO I L CL("~:~?'~:3 I F I cnr 1m,.! I SliD II f::) I t,·!GL.E FPit'! I L.Y DEVELDFto/!ENT RUI····~DFF COEFF I C I EI\IT :::: • ~:;~500 INITIAL SUBAREA FLOW-LENGTHCFEET) -100.60 UPSTREAM ELEVATION = 377.00 DOWNSTREAM ELEVATION = ELEVATION DIFFERENCE = ~~;: n ()<) URBAN SUBAREA OVERLAND TIME OF FLOWCMINUTES) - 10 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.420 SUBAREA RUNOFF(CFS) - TDTAL AREACACRES) = II 3t3 .20 TOTAL RUNDFF(CFS) - **************************************************************************** FLOW PROCESS FROM NODE 5:~;. 00 TO t\loDE ~5·'l. 00 I G C·ODE =:: ----------------------------------------------------------------------~----- »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ============================================================================ UPS·fREAM ELEVATION = 375.00 STREET LENGTH (FEET) = 650.00 STREET HALFWIDTH(FEET) c 28.00 SPECIFIED NUMBER OF HALFSTREETS DOWNSTREAM ELEVATION = 365.00 CURB HEIGTH(INCHES) = 6. STREET CROSSFALL.(DECIMAL) -.. 0200 CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FL.OWCCFS) -5 .. 15 STREET FLOWDEPTH(FEET) = .31 HALFSTREET FLOODWIDTHCFEET) = 9.37 AVERAGE FLOW VELOCITYCFEET!SEC.) -2.59 PRUDUCT OF DEPTI·V~.:\./ELOC I TY ::::: u E:l:1. STREETF·L.mJ TR("~VELT I t'·1E (t'1 I !\!) :":: ,q. u 1 .::? TC (t··'! IN) !!C" 12" 4El 10 \(E(:1r:~ PAI/,-WtiL.L.. H·ITENGITY ~ H·ICH/HOUFO :":: ;;~. c:,;:~B ~3() I L Ct...(~S:::3 I F I C{:iT I DI\J I SliD II SINGLE FAMILY DEVEL.OPMENT RUNOFF COEFFICIENT = .. 5500 SUBAREA AREA (ACRES) = 6.50 SUBAREA RUNOPF(CFS) - SUMMED AREACACRES) = 6.70 TOTAL RUNOFFCCFG) - END DF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .36 HALFSTREET FLOODWIDTHtFEET) - FLOW VELOCITYCFEET!SEC.) -3.21 DEPTH*VELOCITY = <'7"," 4 () {"'\ H·:r·"i -Y II i i :!. " 17 **************************************************************************** FLOW PROCESS FROM NODE ~54" 00 TO 1··mDE -------------_.-------------------------------------------------------------- :!::; ::::: ::::: ;:;:: :.::: :'::: ::::: ::::: ::::: ::::: ::::: ::::. :;<::::-: :-~.:: ::.::: :::::.:.::: :::-: :-.:::. =::: ;::: ::::::.::: =:= ::::: :::. =:: ::.: :::-: :::: ::::: ::::;:::~ ::::: ::::: :;::: ::::' :'::: ::::' :.:::: ::::: :::-: :'::; ::::: ::::: :;.:: :::: ::-: ::::: :::::::::: ::::: ::::: ::::: ::::: ~::: ::::: ::::: ::::: ::::~::::. ::::~::.:: ::::: ::::: ::::: ::::: ::::: :.-::"::::: ::: .. ::::: ::::: ::~.: ;:::; DEPTH DF FL.OI"i IN 1 B n 0 I NCI···I PIPE IE; 1 1 u::2 II\ICHEH PIPEFL.OW VEL.OCITY(FEET!SEC.) = B.4 UPSTREAM NODE ELEVATION = 365.00 D(J!!·Jt···.I~:)TnEn!il hIODE: EL..Ervr('·~T I ON .::: :3(.:,1.1·" 00 I FL.OWL.ENGTH(FEET) = 50.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES - ~-::. I PEFLCll~ "I Hr~U SUBAI::;:E.P\ (CF'S) .... 9 .. 7'7 .I. • TRAVEL TIME(MIN.) = .. 10 TC(MIN.) = 12.58 **************************************************************************** FLOW PROCEHS FROM NODE ~54 .. 00 TO NDDE ~::;~5. 00 H; CCmE:: ::::: ----------------------------------------------------------------------------»»>DESIGNATE INDEPENDENT Sl'REAM FOR CONFL.UENCE««< »»>AI~D COMPUTE VARIOUS CONFL.UENCED STREAM VALUES««< ~===============~=========================================================== CONFLUENCE VAL.UES USED FOR INDEPENDENT STREAM 2 AREg TIME OF CONCENTRnTIONCMINUTES) = 12.58 F:A I !---!F ('~I.. .. L I I\ITEI\IS I TY (I NCH. / HOUR) :::: 2. 6::::: TOTAL. STREAM AREA (ACRES) = 6 .. 70 TOTAL. STREAM RUNOFF(CFS) AT CONFLUENCE = 9 .. 77 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY t··.ltWIBEP (CFH) (t?lI N.) ( I NCI· .. l/! .. ICllm) 1 1. 4 . ·,:1·;:: 1. 1 . 42 :~: n -7t::~:; ~~ t'''1 "'1 0'7 1. ~21$ ~5t3 ,.~ t:; 1!:5 ~1::' '7 . l ,: .\!:'It RAINFAL.L.-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR 2 VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS~ cm"IPLITED C:Dt'IFLUEI\ICE EST It"IPITE~3 {·~F~E (.:')S FDL!....C)!,\J~):: RUl'..iDF·-r.:· (CF';':;) ::::: Z~" f.~O TII"'1E (!·1INUTES) .... 11 .. 11'2::::- TOTAL AREA(ACRES) = 15.70 *****************************************************~********************** FLOW PROCESS FROM NODE ~3.~5. 00 TO h!DIlE .1 T::'" 00 IS C(J:DE ::::: ,q. ---------------------------------------------------------------------------- »»>COMPUTE PIPEFlOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ::::::::: :'.:-::::: :!".! :::::::::::: ::::::::.: :::::::::: ::-.:: ::.:'':::::::::: :::=~:::::::: ::::.:'.::! ::::: ::::: :::::':::".! ::::: ::::: :::-.:: ::::: ::::. ::::: ::::: ::::: :::::-::::: ::::: ::::: ::::; ::::: ::::::::: :-.::: :~:::::: :::: ::::: :::::::::; ::::: ::::: :::::::::::::: ::::::::::::::. ::::~:::: :::::::::: =. ::::::::: :-~-:-::::::::: ::::: ::::: ::;-.:::~ :~-;:::::::.-:: :::::::: ::::: DEPTH DF FL..CH·,J IN 2::6 .. <) INCH PIPE IE:; B. '7 INCHES PI PEF·!.. .. Ol".J \')ELDC I TY (FEET / SEC .. ) ::::: 1 E). 0 UPSTREAM NODE ELEVATION = 365 .. 00 DOWNSTREAM NODE ELEVATION = 333 .. 00 FLDWLENGTH(FEET) = 350 .. 00 MANNINGS N = .013 G l\/Ehl PIPE .D I(..)1'1ETEH ( I NCI·-!) :"" :::::6 .. 00 1'.11.JI"·mEJ~ DF P I FE~:S ..... j, PIPEFLOW THRU SUBAREA (CFS) -2~ .. 60 TRAVEL. TIME(MIN.) = .32 TC(MIN.) = 11 .. 75 **************************************************************************** FL.OW PROCESS FROM NDDE 55.00 TO NODE j,33 .. 00 19 CODE = 1 , ......... ;: ~~: ~::: ~;;: ~;::~; ~ ;;~ ~~. ;~; ~~~ ~~~;. ~~ ..... ~~. ;::; ~~; ~~;;. ~~ ~ ~;: ~~~ ~~ ~~:: " ... ~~ ~~:: ;.;~ ;~;. :;,:; ;.:~ ..... ;.;; ~:;;.~ ..... ~; ;~~ ;:; ~~ ~~ ~:~ ~~;~ ~ ~~ :;:. ~ :~. ::~. ~;~ ..... -............ " ..... -"."-....... " .............. " ................ ". "." -" ...... . ==~=========================~===================~=====~=====~~==="========== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATIDN(MINUTES) = 11.75 RAINFALL INTENSITY (INCH./HOUR) = 2.73 TOTAL STREAM AREA (ACRES) = 15.70 T(Jrr'IL ~?TPI::J·:l!·;1 n'..Jt\!DFF (CFS) . ( .. rr CfJPFU)F I·!~"E: ;".:. I • I FLOW PROCE3S FROM NODE 1. ~~:; 1. n 00 I ~3 CDDI::: :::: ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< :::::.::::: :::: ::::: :::: ::::: ::::: ::::: ::::: ::::: :::: ::::: ::::: :::: ::::: ::::: :::-.: ::::'::::: ::= :::: :::: :' .. ":: :::: ::::;::::: ::::d .. ":: ::::-:::::.;::-.:::::: ::::: ;:::: :::: :::: ::::: ::::: =:: ::::: ::.:: ::-.:: ::::: ::~-:. :::::::::: :::: =:: ::::: ::::: ::::: ::;:: ::::: ::::: ::::: :.;:: ::::: ::::: ::::: ::::: ::::: ::::: ::::::::: ::::: ::::: ::::: ::::: :::::;:: ::::: :::::"::::: ::::: ;:.::: ::::: BCI I 1.... Cl..j":)B~3 I F:-I ClH I ON I SliD II SINGLE FAMILY DEVELOPMENT RUNOFF COEFFltIENT = .5500 INITIAL SUBAREA FLOW-LENGTH (FEET) -100.00 t..lp~:rrREPtl"1 ELEI/AT I ON :::: ~::'7 [;.) .. 00 Dm!Jb!STnE{~1'1 I:::'Lr:"vl{.'~'T' I Ohl :::: ::~;'7 4· If () () ELEVA1'ION DIFFERENCE = unBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) - 10 YEAR RAINFALL INTENSITYCINCH/HOUR) = 3.420 SUBAREA RUNOFFCCFS) - TOTAL AREACACRES) = FLOW PROCESS FROM NODE .20 TOTAL RUNOFFCCFS) - l:~:;:I,.OO TD NODE :I. ~::.:;::" 00 I 3 CODE :::: ":r c:) I: .... 1\.. •• 1 ---------------------------------------------------------------------------- ======================================================================~===== UPSTREAM ELEVATION = 374.00 DOWNSTREAM ELEVATION = 333.00 STREET LENGTH (FEET) = 600.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALPSTREETS CAnnVING nUNOFF = 2 "'i'~,"rp{.~',/r::LT H'IE CCWIF'UTED US I hlG r"!E{~N FLDIJ"J (CFt)) -" fS" :::~ 1. STREET FLOWDEPTH(FEET) = .26 Hnl.. .. FErrr:;:EET FLClOmJ I DTH ([::'EET) ::::: 6" 813 AVERAGE FLOW VELClCITY(FEET/SEC.) -4.40 PRODUCT OF DEPTH&VElQCITV = 1. u :I. 6 ~3TPEE::TF'Lc)\!J TFi:{:iVELT It"'!!::: (t"1 I r\l) :::', 2. 27 TC (l1IN):::: lOu 57 :1.0 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.916 :::3011.. CL .. (,,\!3~?'IFIC(.}ITIOI\1 IS 'ID" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACnES) = 5.90 SUBAnEA nUNOFF(CFS) -9,,49 SUMMED AREA(ACRES} = 6.10 TOTAL RUNOFFCCFS), -9.87 END OF SUBAREA STREET FLOW HYDRAULICS~ DEPTHCFEET) = .30 HALFSTREET FLOODWIDTHCFEET) -8.54 FLOW VEI..OCITV(FEET/3EC.) = 5.82 DEPTH*VELOCITY = 1,,73 FLDl','! PROC:E~:3S FnOt1 I,IDDE lT~r. 00 If:3 CDnE ::::: ----------------------------------------------------------------------------:>:>:>:> >CDlviPI...J'T'E PI F'E:FI....Dl'4 TFi:('~\/I::LT I 1":11:: 'r!'-I!:~U ~~3UBr::)nE:A<: <: <: <: < »»>USING USER-SPECIFIED PIPESIZE««< :::-.: :-:::::::: :-:.: ::::::::: ::::: :::: :::: ::~ :~:: ::::: ::;:: :::;: ::::: ::::: ~7.::::::::: :::::::: ::::: ::-.=::::::=:.:: :::::::: == :"M': :::::::::: ::::: :::::.:::: ::::: :::: ::::: :::::~ ::::: :::.-: ::::: :;:::::::: :.:: ::::: ::::: ::::: ::::; :::: ::::: ::::: :::~::::: :::::.::::: ::::.: :::: ::::: ::::: ::::::::::::::: ::::: i':: :::::::: ::::::=.:::: :::::=.: ::::: ::: ::::: DEPTH OF FLOW IN 18.0 INCH PIPE IS B.5 INCHES PIPEFLOW VELOCITYCFEET/SECn) = 12.0 UPSTREAM NODE ELEVATION = 333.00 DDWNSTREAM NODE ELEVATION = 331.00 FLOWLENGT'H(FEET) = 40.00 MANNINGS N = .013 G l')lEt',,~ P I PI::: D I {:\I"1ETEFi: ( INCH):::: 1. B" 00 t\!UI"WEH OF F' I F'E:S .. ,. PIPEFLOW THRU 8UBAREA(CFS) -9.87 TnAVEL TIMECMIN.) = .06 TC(MIN.) = 10,,63 :1. *****f****************************************~***************************** FLOW PROCESS FHON NODE 1. T2" 00 TO NODE :l :::r$. 00 IE; CODI:; :::: -----------------------------------------------------------------------~---- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< :> >:>:> > (.:i ND C~)I'IF'UTE '"J?,\P I OUt? CONFL..UENCf~I:t ~:;n~EPdvl V('~L.I...J[S-<'::: < <-< =;::::: ::=-=::::: ~-::: ::::: ::::: !"_"".! ::::: ::::-::::: ::::: !;:;: ::::: ::::;.::::. ::'::':::;: :::::.::::-::::: :':::;::: ::~:::: :::-.! :::::~. ::::: :::: -.;;r. :::: ::::: ::::: ;:::: ;:'-; :-::: j!::: :::..'! ::::: ::::: ::: !'.!~. ;::::::::: ::: ::::.::::! ::::: !::::::::. ::::: =,::: ::::: ::.::: :.:: ~::: ~:::: ::.:: ::'::: ::::: ::;:: :::~ ::;:-::::.:::: :;::::::::::::::: ::::: ::::: ::::: ::; ::::: TIME OF CONCENTRATIONCMINUTES) -10.63 RAINFALL INTENSITY (INCH./HrnJR) = 2.92 TOTAL STREAM AREA (ACRES) = 6.10 'rOT (:lL STHI::J:!I"I RI .. .H\IOF·F (CF<~1) (..\T COI'-.!r=UJEI\ICr.::: := ri' • 87 I c::m·.IFLUEhICE I HFom'lt·H I ON: STREAM RUNOFF TIME INTENSITY NUMBER (crs) (MIN.~ (INCH/HOUR) ---------------------------------------------------------------------------- 1 2 II ~7~::i.1· ~-. oS::. '1. \37 10. 6~:' RAINFALL-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS~ COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) = 32.85 TIMECMINUTES) -11.746 TOTAL AREA(ACRES) = 21.80 ***************************************************************************~ 1 ::~;::~ .. 00 TO I'··IDDE. FLOW PROCESS FROM NODE ---------------------------------------------------------------------------_.- > > > > >ccmptrrE F' I PEFL!JL!J Tf~(.~\lEJ .... T II"IE THRU SUB{~RE(1«< <: < »»>USING USER-SPECIFIED PIPESIZE««< ============================================================================ • DEPTI-! OF FLOI/·} I N 2·1.~. 0 I t\ICH PIPE I~:3 1. 6. tl H··ICHES PIPEFLOW VELOCITY(FEET/SEC.) = 14.0 UPSTREAM NODE ELEVATION = 331..00 DOWNSTREAM NODE ELEVATION = 315.00 FLOWLENGTH(FEET) = 450.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREACCFS) -32.85 Tn{.~l.)E.l.... T H'lE (t·n !\I.) ~= .54 TC (t,·III···.! n) :.:~ 12 n 21:3 **************************************************************************** !59. 00 IS CDDE :::: I :l ~:;':3" 00 TO NODE FLOW PROCESS FROM NODE ....... _ .......... MO" MO .... 0 •• __ ...... __ ... ,,' ••••• _._ " ..... _ ............... M," _ .................. _ ................. _H .......... -0" ........ __ 0 .... 0-.. 0 .. _0, .................. -0 ..................................... -.......... '''f' -........ :-.............. -......... N ............... -" .......... ---' ........................................... . »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< =======~============================~=========================~============= cm'.~FLJ.JENCE~ IHiLUES 1j~3ED FOP I I\IDEP El·.!D EJTr STF';:E:{~!"I :I. (':~RE:: TIME OF CONCENTRATION(MINUTES) = 12.28 I::;:('UNF('~U .. IhlTEhlBITY (INC:H. /l-.. IOUr-O ::"' 2 .. 66 TOTAL STREAM AREA (ACRES) = 21.80 TOTAL STREAM RUNOFFCCFS) AT CONFLUENCE = 32.85 **************************************************************************** ~57 ,,00 IS CDDE ::: !56 .. 00 TO hlDDE FLOW PROCESS FROM NODE ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ~:::: ::::: ::: ::::: ::::: ::::: ::::: :::: :::::::::: ::::: ::::;:::: :::: :::: :::: :::;: ::::: ::::: :::::-::::: ::::: ::::: ::::: ::::: ::::: ::::: :::: ;:::: ::' .. ": ::::: :::: ::::: ::::: ::::: ::::: :::: ::::: ::::: ::::::::: ::::::::: ::::: :::: ::::::.::;: ::::: ::::: ::::: ::::: !!:-.: :::."! ::::: ::.:: ::::: ::::: :::::::::: :'.::: ::::: ::::: :::: ::::-::::: :::::.::::: ::::: ~:: :::: ::::::::: ::::: !;:.:: ::::: :::: . t3D I L CI....{~~3~:3 I F I CF~T I D!\~ I S II D II SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = INITIAL SUBAREA FLOW-LENGTI~(FEET) -:1.00.00 UPSTREAM ELEVATION = 351..00 DOWNSTREAM ELEVATION = ELEVATION DIFFERENCE = I..JF~B(.:~I\1 r:3UE3(..)RE:(; Ol·'/ERL.(..'~ND T I HE OF F'LOVJ (1"11 t··,\UTEFi ) ... - :1.0 YEAR RAINFALL INTENSITY(INrn~/HOUR) = 3.420 TOTAL AREACACRES) = TOTAL RUNOFF(CFS) - , • I ~57 .. 00 TC) t···IDDE~ »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< :::: ::::: ::::: ::::: ::::: ::::: :::;: :::: :::: ::::: ::::: ::::: ::::: ::;:: ::::: ::::: :::: ::::: :::!: ;.::: :::: ::::: ::::: :::: :::: :::: ::::: ::::: ::::::::: ::::::.::: =:: :::-.: ::::: ::::: ::::::= ::::: ::::: ::::.:.::: ::::: ::::::::::::..=:;::: ::::::=:.::::.:;: :::-.:::.:: ::::::::::. ::::: :::: :::: ::::: ::::: :::: ::::: ::::: :::: ::::: ::::.::::: :::::'::.~::::: ::.::: ::::: :::: ::::::::: ::::: UPSTREAM ELEVATION = 359.00 DOWNSTREAM ELEVATION = 315.00 STREET LENGTH (FEET) = 1000.00 CURB HEIGTH(INCHES) = 6. STREET ~!ALFWIDTH(FEET) = 28.00 STREET CROSSFALLCDECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 -:'{·-:i··rF;~t~l . .;'r:::L..·T I i~'IE:: C:Clt·.:lf::'L..I'rE:i) LJf:3 I 1\1(3 t.:IE:t:·il\1 F·L..C)l~J ([:F"E;) .. ,~ .!.(. n E:i!:. ~:3THEET F·LO\!·JDEPTH (F::EET) ".:" .26 HALFSTREET FLOODWIDTH(FEET) = 6.88 AVERAGE FLOW VElOCITY(FEET/SEC.) -4.10 PRODUCT OF DEPTH&VELOCITY : 1.08 E;T FU';:: ET F 1.... D!;J TR~~VELT HiE (1'11 N j ::: 4·. 06 TC nTH N) :~-:: 1:2" ~$6 10 YEAR RAINFALL INTENSITY (INCH/HDUR) = 2.645 E;O I L CI....(::i~3E I F I C(.4"1'· I en\1 I B II D II SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA (ACRES) = 6.10 SUBAREA RUNOFF (CFS) - SUMMED AREACACRES) = 6.30 TOTAL RUNOFFCCFS) - END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .31 HALFS1~EET FLOODWIDTH(FEET) - FL.O!;·) VEL.DC I T'{ (F EET 13[C,,) :::: 4 u 65 DEF·TH~fVf::I....CJC I T"l ::::: ~~***********************************************************~*************** FLOW PROCESS FROM NODE ~::it3. 00 TO NODE 5'7" 00 IS CODE :::: ---------_._----------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU S4BAREA««< »»>USING USER-SPECIFIED PIPESIZE««< =====================~====================================================== DEPTH OF FLOW IN 24.0 INCH PIPE IS 8.7 INCHES PIPEFLOW VELOCITY(FEET/SEC,,) = 9.0 UPSTREAM NODE ELEVATION = 322 .. 00 DOWNSTREAM NODE ELEVATION = 321.00 FI .... OI;·Jl..EI\I(~iTI···1 (p:'r:::E'r):::: LI·O. 00 IVIAt\IN I NBS 1'-1 :::: • (11~:: GIVEN PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREA (CFS) -9.25 TRAVEL tIMECMIN.) = TC(MIN.) = 12,,44 1 ****************************************************************~*********** FLOW PROCESS FROM NODE ~.m .. 00 TO hIODE· .:1. »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ===========~======================~======:==================~=============== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATIONCMINUTES) = 12.44 RAINFALL INTENSITY (INCH.!HOUR) = 2.63 TOT (.~L.. !3"I'F(Et:)I"1 tIF~E{~ (?~~CnES) ::: ·6" ::;0 TOTAL STREAM RUNOFFCCFS) AT CONFLUENCE = 9 .. 25 ************************************~************************************~** FLOW PROCESS FROM NDDE (;:.0. 00 TO NODE b 1 • 00 H3 CODE:::: ----------------------------------------------------------------------------»»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ==========~================================================================= ~3CJ I 1.... CL.(.·:i~:3:::3 I F I C(..:IT I ON I ~3 " D II SINSLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH (FEET) -100.00 I..JF·BTr::E(:~I"/1 ELE\/(.~T I Oi'·.1 :::: ~::'.f.!.\.?" 00 DOWNSTREAM ELEVATION = 347.00 FLEVfyr T (H'·! D:r FFEPEI\ICE: :::; I..JPJ.3Ptl···.i ~Jl..JP(;lHE(.::! 0\ 'FJH (:~I\1fi .," R ":;oqq SUB (.:·IF;:EI:i HUI'··.IOFF (CFS) ... TOTAL AREA (ACRES) = .20 TOTAL RUNOFF{CFS) - ******~**********************************************~********************** I FUJIAI PFClCUm FFmt··1 I\IODE .b 1 • 00 TO 1'·.iODE 62 .. 00 I ~3 CODE ".': b --:::::f:·(:)·I:f:I-I·~l:E:-~~r-·I:~~~l:-I~·L-~l~J·-~l:1~:~·E:I-~1:·I-·1-1·E--~1:1-1·1:\-I-:I-II::I:·I:·('~:::::-------------~-------- ..•.•••••.•.•...•..... 01.. "I'" "N '':. .::> "\. t::'I::_ ... ..1.. .. v' "'. "'1 . .,1 ":' .. _ •. "" ':.. ... .~ ... .:::>._ .7:r j'-I .,\ ::. -1·· .............. ~:" • I :::::::::: :-.::: ::~:;~ :;:: ::::::::::::::::::: ::::::::: :::::::::::::::::::::::: ::::: =:: :::::::::: :::: ::::::;:: ::::: ::::: :::: :::.::.:::::: ::::: ::::::.-::: ::::: ::::::::::::: ::::: ;:::: :. .. ,:: ::::: :~: ::::: ::::: ::::::::: ::::: :::::::::: ::::: ::.-:: :::::::::: ::::: :::::':::::::::: ::::: ::::: ::::: ::::: ::::: :::::-=::: ::::: ::::: :.-::: :::::::::: ::::: :::::-:::: :::;: :::::::::: ::::; UPSTREAM ELEVATION = 347 .. 00 DOWNSTREAM ELEVATION = 318 .. 00 STREET LENGTHCFEET) = 950 .. 00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) ~ 28.00 STREET CROS6FALL(DECIMAL) -.. 0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **lRAVELTIME COMPUTED USING MEAN FLDW(CFS) -1.98 STREET FLOWDEPTHCFEET) = .21 HALF STREET FlOODWIDTHIFEET) = 4 .. 40 AVERAGE FLOW VELOCITY(FEET/SEC.) -3.18 PRODUCT OF DEPTH&VELOCITY = .68 STREETFLOW TRAVELTIME(MIN) = 4.98 TCCMIN) = 13.28 10 YEAR RAINFALL INTENSITY (INCH/HOUR) = 2 .. 526 ~:::;Cl I L CL{:1~3~:::; I F I C{YT' I el!'..,! I B "D 1/ SINGLE FA!iILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES) = 2.30 SUBAREA RUNOFF(CFSt -3.20 ~~I..JI'1I·1ED {mEr; «(:jeRES)::;" ;;~. :::iO TDTI!.'!jL. PtJhIDFT:' (CFS) .... :~~. !S7 END OF SUBAREA STREETFLOW HYDRAULICS~ DEPTH(FEET) = .26 HALF STREET FLOODWIDTH(FEET) -6 .. 88 FLOW VELOCITY(FEET!SEC.) = 3.02 DEp·l! .. ·!·i\·\.jEI....DC I tv' ::'": **************************************************************************** FLOW PROCESS FROM NODE .>:>:>:> >cur"If::'UTE P I P~~FL.DI;.J TR(.·~'··.;'EL T I t"!E~ THr:;:lJ \3UBtlr:;:E(i< <: < <: < }>}}}USING USER-SPECIFIED PIPESIZE««< 1.1· -;::: ::::::= :::::::.:: :::: :;:;:::: :::;: =. :::.:: :!::: :!'.;::::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: :::-.:::::: :-:.: ::;:: :::::::: ::::: ::::: ::::::::::::: ::::: ::::::::: ::::: ::::::::.::. ::::: :::::::: ::::: ::::: ::::: ::::: ::::! ::::: ::::: ::::: ::::: ::::: ::!:: ::.:::~ ::::: ::::: ::::: !;::: ::::: :::: ~.:: ::::: =:: ::::: ::::; :::;::::: ::::: :::: ~ ::::..::.: :;::-::::::::: :::: DEPTH OF FLOW IN 18.0 INCH PIPE IS PIPEFLOW VELOCITY(FEET!SEC.) = 7.8 UPSTREA~ NODE ELEVATION = 322.00 DO\\Jt\.IGTF~E()i'!1 nODE EL.EV?YT I DN ~-::: ~~:'2:1. .. 00 FLDWLENGTHCFEET) = 30.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES -1 PIPEFLOW THRU SU8AREA(C~S) -3 .. 57 ·rfi{-~VEl.. T I i'lE: (t,! IN,,)::;~ " 06 TC (!vl I H .. ) ::::: :I.~:' .. ~::..!~ ************~*************************************************************** .I. -------------------------------------_._------------------------------------- }»}}DESIGNATE INDEPENDENT STREAM FOR CDNFLUENCE««< »:»>AI~D COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< =================================================~=~==~~==================== CD!\IFLUI:::I··,ICE '''';I~~LUES UbED FDH I hIDE:F'E:I····.IDE.h!T STHE.l:il'·/! ::::. (.1 HE ~ TIME OF CONCENTRATION (MINUTES) = 13.34 H(')H~F(l!....L.. II"·.ITEI'·H3I"r·y (Ih!CH .. l!-lOUFn :0" 2.52 TOTAL STREAM AREA CACRES) = 2.50 TOTAL STREAM RUNOFFCCFS) AT CONFLUENCE = 3 .. 57 CONFLUENce INFORMATION: STR~AM RUNOFF TIME INTENSITY t···~Ut'!BEn (eFEj) (1"1 I !\~.) ( I 1\ICI···1 / Hc)UF~) _._------------------------------------------------------------~------------- 1. :::::::~:~ t3~5 1. .'-, '''.\(~ ;~ t:.)::5l:} 0 .t:: . . .,: .. C .. ' · ~ .. :-", ~I~:I!:) :l ...... Llll .. , t! 3~:5 .1:: 7 .. ..-n .\:-· '''r ~:~ :.i~·' J. ~::; ~::'4 ~I~:: :5 1 ~., .. ::1 . . · \ .. 1. I • F((::~ 11···.!F(:·,l....l....-·-I 1·;1·1·!::'h!~3 I "\,"'-{ "'-F~:(1T I D CO!\!F:LI..JE!\!CE F'OP!yIULfi UEE.).) FiJn :::~; ~J'rpE:(~i!;'IE VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 45.i2 45.25 43.56 CDMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOW8~ PU~·IOFF (Cr:;·f.:) ,,:: 4~=.;. 1.1·2 T I t"1E (Ivl I I\IUTEG) ..... l:? u 2El::;:: TOTAL AREA (ACRES) = 30.60 **************************************************************************** FLOW PROCESS FROM NODE !.Y? • 00 TO hlDDE l1B.00 IS CODE ::::: »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USEP-SPECIFIED PIPEf.:)IZE««< =====================================================~===========~========== DEPTH DF F1.. .. D!/J I N :~:'.~) .. 0 INCH PIPE I~::; 1 1. • 1. J: t .. ICHEE.: PIPEFLOW VELOCITY(FEET!SEC.) = 24.6 l...IPf.lTREr.:il'1 I\!~JDE ELE\JP,"!' I DN ::::: ~~:'2:1. • 00 DDVJl'"-li:3TRE(it· ... 1 NODE E:L .. EV{ .. \T I 01\1 ::::: ::::: 12. O() FL.CH'JLEt\ICHH (FEET) ::::: 70. 00 /"Itd\!!\! :U\!C:;S 1\1:::: • 0 1 ~~:. GIVEN PIFE DIAMETER(INCH) = 36.00 NUMBER OF PIPES -1 PIPEFLOW THRU SUBAREACCFS) -45 .. 42 TRAVEL TIME(MIN.) = .05 TC(MIN.) = 12.33 **************************************************************************** FLOW PROCESS FROM NODE !::59 n 00 TO I'··.IODE 11 ::3 n 00 I ~3 C:;ODI:: :::: :I. ==================================~==~====================================== CONFL.UEI'·~CE=': \/{~U .. JES I...fSED FClH I ~JDEPEl\IDENT BTf~E{~n :!. ?~F:E:: TInE:: DF C(JNCENTF?{YT I C)t\! (t'1 I h!UTEE) ::::: 12 u ~:'3 RAINFAL.L. INTENSITY (INCH.!HOUR) = 2.65 TOTAL STREAM AREA (ACREE) = 30.60 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE::::: 45.42 **************************************************************************** FL.OW PROCESS FROM NClDE :t :I. (). 00 "1"0 NODE :l:l:l n 00 IS CDDE ::::: »»>RATIoNAL METHOD II~ITIAL SUBAREA ANALYSIS««< ====~======~================~====================================~========== :30 I l... CL("~E;:::~. I F I C(")T I O!\I I S II D II SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FL.OW-l...ENGTH(FEET) -100.00 UPSTREAM ELEVATION = 351 .. 00 DOWNSTREAM ELEVA1ION = 349.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) - 10 YEAR RAINFALL INTENSITYCINCH/HDUR) = 3 .. 420 SUBAREA RUNDFF(CFS) - TOTAL. AREA (ACRES) = FLOW PROCESG FROM NODE :I. :1. 1. a 00 TD I'IODE 11. :;~ • 00 I ~3 com::: 07: .':;'<::. U .... 1 ..... ' ----------_._----------------------------------------------------------------I . :::::::: ~::: ~: ~: :~: ~: ~~~! ~:.:~ ~~: ;~~ :~ :~: ~:;, ~~ ~~;::;, ~:: =: ~;~ ~~ 7 .... ~ 2: ;;~ ~:~ !;;. ~;~; ~~ :~:;~ ;:~; ::::: ~~ :~~ ~~ ~::~~: :;;;: :;~ ~:: ~~~ ~~t,~;,~~ ;::~ ;:~~ ;:~: ;;~~ ::::: =:: :::::~ ::::: ::::: ::::: ::::: :,;: ::::: ::::: ::"~ :::: ::~ ::::: ::::::::: ::~"""" :::= = ::: LJPBTHEt'ln ELE'vl(."lT I UN :::: ~:;'.i1·1;1 .. 00 DC)I;·Jt···~ElTHE(:lt·'1 EL.t:::IVI()T I 01··.1 :.:: ::::;:::;0.00 ~:3Tr-~r:;ET I.. .. FHGTH (FE:ET ) '::: 7 !;.':; 0 • 0(' CUP;':: I·-IE I GTH ( 1!\!CHES) :::: b .. Enm::ET f .. WlI....Fl!JI DTI-·! (FEET> ,,:: 2[3. 00 ~3lPEET CFmSBJ;·(.\I....I.. .. (D[:::C H'IPIU ::::: . 0200 : SPECIFIED HUMBER OF HAL.FSTRFFTS CARRYING RUNOFF = 2 **TRAVEI....TIME COMPUTED USING MEAN FLOW(CFS) - S'FREEl FLDWDEPTHCfEET) = .23 !·"!('iL.F"S·fRE[T FL..QOD\J·j I D'll"! (FEET) :::;: :I 00 ,. t: f / , ••• •• , _... • ., .... "M •• ..;.! . • ., :._h. r •••••••• _. ; •• PRODUCT OF DEPTH&VELOCITY ~ STHEETFLOW TRAVELTIME(MIN) = 4.92 TC (1"'1 I hI ) ":" 1 ~:. " 2:L 10 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.534 ::30 I L CI....r::\::3E I F I C(:~I T I ClN 153 "D!I SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREACACRES) = 2.30 SUBAREA RUNOFF(CFS) - SUMMED AREA (ACRES) = 2.50 TOTAL RUNOFFCCFS) - EI\ID OF' E31...JB('~F\:E("~ STF~EETF·-LCJI.',1 I .. 1"{DF':(.:\UL I CS ~ DEPTH(FEET) = .26 HALFSTREET FLOODWIDTH(FEET) -6.88 :~; II 21 F'LeJI;J VELOC]' T\( (FEET /SEC.) ".-:: ::~. o:~ DEPTI"'I-l(-VI;~LOC:; I TY ::: .80 FLOW PROCESS FROM NODE 118.00 IS CODE = ----------------------------------------------------------------------------»»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ::::: :::::::::::::::;: :.::: ::::: ::::,::::: ::::::::: !!::: :::~ :::::::::::::::::::: :OM"::::::::::: :::: ::::: ::::::::::::::: ::::: ::::: ::-.:: ::::: !:::~:::::::::::::.:::: :::::::::: :::::::::::::::::::::: ::::::-.::!::::: ::::: ::::::::: :::-.:::::::::::::::: :.:::::::: ::::: :::.::-::::: =.::::::::: ::::::::: ::::.::::::::::::: ::::: :::::::::::::: :::: :::::::::: ::.::..:::::.: ::::! DE'~PTH OF FUJv·j IN 1 El. 0 II\ICH PI F'E I G :3;. 7 I NCI"'!E(3 PIPEFLOW VELOCITYCFEET/SEC.) = 13.7 I..JF'f;=;THEf)t'l 1\.IDDE E:L.EVf;T I ON:::" ~$:~:'O. 00 DDI!Jt-,j!::lTRE.{::lt''1 hlODE ELE\}~n I 01\1"::: :3 :l ,q .• 00 FLDWLENGTH(FEET) = 100.00 MANNINGS N: .013 C3 I ~'/EN PIPE: D I {41·iIETE?:r~ ( I 1\leH) :"" 1 D u (H) hi UI··1F3ET: OF P I F'E~3 .. · 1 PIPEFLOW THRU SUBAREACCFS) -3.58 TRAVEL TIME(MIN,,) = .12 TCCMINu) = 13.34 **************************************************************************** FLm·J FnDCE~:33 FHDl'1 !\IODE 1 :L 2" 00 TO I··H:JDE 11 E3. 00 1 ~3 CODE·::: 1 • . .... -..... -.--.......................... -•... -... ---..... -.-.. -... -...• -_ ........... _.' .......... , -...................... , ....•.••.. , ............. -..... --" ... -_ ... -.. , ........... -........ --. -_. -_. _ ..... -..... _ ... --.. -... -"-' --................... -............. - »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< I =====:=====~=============================================:===::====::=::==== CClhlr:l....l.JENCE. I.HiLUE3 tJ1:3ED FOH I hIDEPENDE}·IT ::rrF~E(.'4I"·1 ::;:: PiF:E ~ TIME OF CONCENTRATION(MINUT~S) = 13.34 P(~ J NF {iLL I NTEh\S I TY (I I~CH. /1'-lDUF~) :::" 2. 5:,-';: TOT (..:)1.... ~,H~[fil··1 (~F;:E?) (P1CREf:)) :"= 2 u ~:so TOTAL STREAM RUNOFF(CFS) AT CDNFUJENCE = 3.58 FLOW PROCESS FROM NODE :1.16" 00 TO NDDE 117.00 IE) CODE ::. ----------------------------------------------------~-------~--------------- »»>RATIONAL METHOD INITIAL SUBAHEA ANALYSIS««< =========:=:============================================~=~=====~=========~= BOIl.... CLAS:::3IFIC{~TIDt···.1 1:3 "D" COMME~CIAL DEVELOPMENT RUNOFF COEFFICIENT = .8500 INITIAL SUBAREA FLOW-LENGTH(FEET) -650.00 UPSTREAM ELEVATION = 340.00 DOWNSTREAM ELEVATION = 319.00 ELEVATION DIFFERENCE = 21.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) -9,,439 *CAUTION: SUBAREA SLOPE EXCEEDS COUNTY NOMOGRAPH DEFINITIClN. EXTRAPOLATION OF NOMOGRAPH USED. *CAUTION: SUBAREA FI....OWLENGTH EXCEEDS COUNTY NOMOGRAPH DEFINITION. EXTRAPOLATION OF NOMOGRAPH USED. 10 YEAR RAINFALL INTENSITV(INCH/HOUR) = ~.148 SUBAREA RUNOFF(CFS) -2.14 TOTA~ APEACACRES) = TOTAL RUNOFFctFS) - **~************************************************************************* __ 0 __ ••• OM_ M." ....................................... _ N." ..... "'M .. OM ....... _ ...................... 0 .... "OM , ....................... , ............ -: __ .. "". , •• _. , •••• " .......... M ••••• _ ... ~ ... _ .. OM "_ ._ ... _:-..... "_"_ ..... '_OM ..... ':'., ..... ~ ••• ~ ..... ~_.!" ,.OM .......... , • ." ............... , ............. :=. ........ : ......... ,:'~' _0 ••••• , • I »»>USING USER-SPECIFIED PIPESIZE««< =================~====~=====~=~======================:======~=~============= DEPTH [:F FLOI,'.J I t\1 1 E: .. 0 I NeH PIPE :r.~) :~:; .. 1:.:. I NC!"'IED PIPEFLOW VELOCITYCFEET/SEC .. ) = 8 .. 4 UPSTREAM NODE ELEVATION = 319 .. 00 DOWNSTREAM NODE ELEVATION = 314.00 FLOWLENGTHCFEET) = 80.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREA (CFS) -2.14 TRAVEL TIMECMIN.) = .16 TC(MIN.) = **************************************************************************** FLOW PROCESS FROM NODE :1.17.00 TO NODE 118.00 H3 CODE ",: »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CoNFLUENCED STREAM VALUES««< :I. ::: =: ::::-=.: :::: =::::: :::::::::: :.~:: :!::: ::::::::: :.-::::::: =-:::: :::: ::!: ::-.: :-.::: :::::::::~::: ::::: :::: ::!: :".!:: :::: ::::: ::::: ::::: ::::: ::::;::::: :.::: ::::: :;:=::::::::: :'.:'': :::::::::; :::::::: =::::-.:: ::'~-:'::::::::: :-.:::: ::'"=!"M':! :::!: ::::: :::: ::::: ::::: ::::: :::: ::::: ::::: :::: ~:: :::::.::::: ::::: !"_-:: ~:: :-.::: ::-.: ::::: ::::::::; ::::: CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATIONCMINUTES) = 9.60 RAINFALL INTENSITY (INCH.!HOUR) = 3.11 TOTAL STREAM AREA (ACRES) = .80 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 2.14 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY t'·.II..JI"1BEH (eFt;) (t1 IN.) ( I NCHI HDI...!R) ---------------------------------------------------------------------------- j, ':l-~5 r. if :7;:: 1-,., .t!~ tI ::::::3; r", ,I::: r. 650 .":\ "!r ~5Ej j ":r :~::4 :;:: 5J c:.' of ... .... 1 . • 'R': a " i :::: ,., :l. 4 I" t::,<) 3:t :!. 1 4 .1::'tI "7 . RAINFALL-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: .il·E:; .. 4'7' COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS~ RUNOFF (CFS) = 50.64 TIMECMINUTtS) -12.32'7' TOTAL AREACACRES) = **************************************************************************** FLOW PHOCESS FROM NODE 1 :t f3" 00 'TT) I'.\DDE 122. 00 I B CO.J.)E :::: »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< ========~=======================~===================~======:================ :I. (1 YE::Pd::; F~{·\ I I\IF' {:~l....L I t···.ITEI'.!f:3 I TY ( I I\ICH / HDLm) ",,: 2. 650 E:;Cl I L CL..tISS I F I en T I 01····.1 I ~:; II D II B I NElLE F (:~H I LY DEVELOPI·1EhlT F~UNDF'F COETF I C I E!'-IT ::= • 5~::.'iOO SUBAREA AREA(ACRES) -2.40 SUBAREA RUNOA:CCFS) -3.50 TOTAL AREACACRES) -36.30 TOTAL RUNOFFCCFS) = 54.14 TC~MIN) ~ 12.33 **************************************************************************** FLOW PROCESS FROM NODE 1.22.00 TO NDDE 66" 00 IS CDDE ::;:: »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ======================================================~=======~===~========= DERTH OF FLOW IN 48.0 INCH PIPE IS 21.4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 10.0 UPSTREAM NODE ELEVATION = 288.00 DDI··n··.!f.,TEE(.:ll·"1 1··,mDE EIJ:-:VAT I ON::::: 2(;33" 00 FL.OI,'JL..ENf~'TH (FEET) ::::: ~:i09" 00 !'1(:H\IN I NGS N ::::: • (J 1 :::; G I \)El\l PI F:-r:: f.j I Plt"IETEF':: ( I HCH) :::: 48. 00 !\!LflvIBEF< elF P.: F'ES TRAVEL '·IMECMIN.) -TC(MIN.) -13.16 *~**********~*************************************~************************* Fl .. OVJ F:'ROCI::::~:3~3 r::Hm·'! NODE 12:2. 00 TD 1'·mDE 6(:;; .. 00 I :~3 COnE ::: :I. , .......... ~;:: ~;:: ~;. ~;:: ~;:: ;,:; ~~ ~~ ;:. ~; ;:~ ;~; .~~ ;~ ._-~-~~~; ~~ ~:~ ~~ ~~ ;,:; ~~ ~.~ :~~ _ ... ~ ~ ;~; ~ ~;.~ ;:.~ _ ... ~~ z; ~~ --~;~; ;:~ ~~ ~~~ ~~; ~~ ;.~;~; ;~~ ::~. :;~. :::. ::;:. ::;~. -_. -". _.-_.-... -_.-.. _ ...... _ ... _ ............... -... _ ... ~ -_ .. _. '-.... -- :::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: :~:: ::::: ::::: :::::::::: :'i": ::::: ::::: :~:: :::: ::.=_:::: ::::: :::: ::::: :::: :;::: ::::: :::: :::.: :::.: ::::: ::::.:::::: ::::: ::::: ::::: ::::: ::::: :::: :::"::;::: ::!:: ::::: ::::: ::::: ::::: ::::: :::: ::::: ::::: ::::: !:::: ::;:: ::::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: :::::..:::: ::::: ::::: ::::: ::::: ::::: ::::::::::. !'~.:: COt\IFI.. .. UENCE:: tvt(.~lLl...IE::~:3 I..JS';ED FOI~ I ND[';:~PENDEI\IT HTnE(.\t'1 :t (.:1 HE :: ''1'' H-IE CJF COI",1CENTH{H I DH (n U.I\.JTE:En "'": 1.~; .. 16 RAINFALL INTENSITY (INCH .. /HOUR) = 2 .. 54 TOTAL STHEAM AREA (ACRES) = 36.30 TfJT{iL BTnEf..Wi HI...Jl'\!CiFF (CFS) (:;T COI\IFL.UENCE ::::: !.5.'+.14 **************************************************************************** FLOW PROCESS FROM NODE 67,,00 TD NODE 6B.OO IS CODE ::: ---------------~-----------------------~----------------------.. -~----------- »»>RATIDNAL METHOD INITIAL SUBAHEA ANALYSIH««< .:::: =:: :::: ::::: ::::: :::: :::: ::::: ::::: :::::::: =::: :::: :!:.:: ::::: =:: =:: ::: :::: =. ::::: :::: ::::::::::::::: :,-.: :::: ::;: =.:: ::::: =:: ::::: :::: ::::: ::::: =:::: =.:: :::: :::::::::::: :::-.: :.::: ::::: ::::;::::: :::::,:::;: ::::: :::: ::::: ::::: =:: :'.::: ::::: ::::: ::::: :-.::: ::::: ::::: ::::: ::;: ::::: ::::! ::::: ::::: ::::: ::::: :::.:: ::::::::: :::: =:: ::::: ::::: f;OI!... CL .. {)f:3~3IFIC{·~lTIlll'···1 IS ttD" SINGLE FAMILY DEVELOPMEHT RUNOFF COEPFICIENT = .. 5500 INITIAL SUBAREA FLDW-LENGTH(FEET) - UPSTREAM ELEVATIOH = 291.00 DOWNSTREAM ELEVATION = ELEVATION DIFFERENCE = 2BC] .. OO 100.00 unBAN SUBAREA OVEnLAND TIME OF FLOWCMINUTES) - 10 YEAH RAINFALL INTENSITY(INCH!HOUR) = 3.420 SUBAREA nUNOFF(CFS) = TOTAL AREACACRES) = .20 TOTAL RUNOFF (CFS) - FLOW PHOCESS FROM NODE 6E::. 00 TO NODE 66.00 IS CODE :::= »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ==~=======================~==========~====================================== UPSTREAM ELEVATION = 290.00 DOWNSTREAM ELEVATION = 282.00 STREET LENGTH (FEET) = 800.00 CURB HEIGTH(INCHES) = 6 •. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFAlL(DECIMAL) -.0:200 SPECIFIED NUMBEH OF HALFSTREETS CAnRYING RUNDFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -:2.76 STHEET FLOWDEPTH(FEET) = .. :28 HALF STREET FLOODWID1~(FEET) = 7.71 (.It..)L:::n('~CiE FL..DI;.J VEL-DC I TV (FEET,I f3EC .. ) ..... 1. .. 94 FF::O.DI..JCT OF [lEPT~·lgI.V[:L.C:IC I TV::::: STRE~TFLDW TRAVELTIME(MIN) = 6.89 1,0 Yf~fin H{UNF(·)LL .. INTENE:.ITY (H·ICH/I .. ·IOL.If':;:) ::::: 2. :~:;16 BOIL.. CU·):3~3IFICATION IEl "D" SINGLE FAMIL.Y DEVELOPMENT RUNOFF COEFFICIENT = .5500 SI..JB{-)RE:('~ P1F;:E{~ C (-~cnEE)::::: 3. bel EUB{~RE(:) F~LJI'··1ClFF (CF'F3) _.. ..:1: ,,' 5 i:;:' SUMMED AHEA(ACHES) = 3.80 TOTAL HUNOFF(CFS) -4.96 END OF SUBAREA STREETFLOW HYDRAULICSg DEPTH (FE:E:T) :::: .. ~.::.~:. HAL..FErf'F;:EET FL.Oom·J I DTH (FEET') -... 1, O. :;;:~o FLOW VELOCITY(FEEl/SEC.) = 2.14 DEPTH*VELOCITV = .71 FLOW,rHOCESS FHOM NODE 68. (10 TD I'IDDE (::,6" 00 I f:l CODE ::::: ..... H __ '" ............... __ ............... _ •• _ ........ MO,' ....... _ .............. 0 .. _ •• __ ................................... _., __ ...... MO,' ..... _0" .... , ............ _ ...... _ ..... ___ .................. _ ....... _.,0;.. ........... _ ..... ,., .. ". ~ ........ _ .......... _ .. ~ .................................................. !'_ ... " ... ~ ..... _ ........ _ ... »»)DESIGNATE INDEPENDEI~T STREAM FOR CONFLUENCE««< ========~=~======~================:==========~============================== CfJI'.!FL1..:JEt ICE ~·!{\L..!"JEt;, 1...)~:3[.D FDj:': I HDE·:FENDl::::!\IT STFi~EAI'1 2 (.lF~t:!: TIME OF CONCENTRATION(MINUTES) = 15 .. :1.9 , • I I .1 •.•• l ; 1........ " . I I .•• I 'I ._ ,. 1 •• _. •• • I .• I. '" ", •• TOTAL STREAM AREA (ACRES) = 3.80 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 4.96 ~********************************************************************~~****** FLOW PROCESS FROM NODE 64.00 I S CODE :,: MO., __ ....... _00. __ ...... __ • MO •• _ ... _0 .. ___ ........... _ ..... __ ............ _ MO" .......... _.-......... M ........ _,,,,_,,, M •• ' ....... , ...................... _ ........................... MO.' .......... _ ..... _ ... _ ............... _., ................................... ! ......................... M ........ -••• M •• ' .. 0 ................. --.. - -... »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ::::::::: =:: ::::::::: :::: .::::: :::: ::::.: :::::.::::: ::::: ::::: :::':.::::: :.:.::::::-.:: ::::; ::::: ::0 .. ': :::::.::::: :::::::;:::::::: ::::::::::-.= ::::: :::-: :::: ::::: ::::: ::::: :::: ::::: ::::: :;::: ::::: ::::: ::::: ::::: ::::: !".!::,::::: ::::: ::;: :!:: ::::: ::::::::: ::::: :::::::-:: ::::: ::::: ::::: ::::: :;::: ::::: -:::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: ::.::: =::: ::::: ::::: .::::-:::::::::: ~:3DIL CL(:i~::;~::3IFIC(:lTIC:)1\1 I~3 i'D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT::::: .5500 INITIAL SUBAR~A FLOW-LENGTHCFEET) -100.00 UPSTREAM ELEVATION::::: 308.00 DOWNSTREAM ELEVATION = 306.00 ELEVATION DIFFERENCE::::: 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) - 10 YEAR RAINFALL INTENSITY(INCH/HOUR) ::::: 3.420 SUBAREA RUNOFF (CFS) - TOTAL AREA(ACRES) = .20 TOTAL RUNOFF(CFS) - **************************************************************************** FLOW PROCESS FROM NODE 6~5" 00 IE; CDDE :::: ......... _ ..... ~ .. -.. -.. --~ -.. "'-... ~ ........ ~ ....................... -... -............ -........................... -......................... ~ .............. --........................... -....... _ .... _ ......................... -............. ; .... -.-.............................. , .. -............... '''';'' ..... , .......... _ ............ --... - ==~====~================~=====================:::::=====~==============:::::=~====== UF'STr:::E('.W! t:::L..EV(.4T I CH\I :::: ~:;O~:S. 00 DClI/.n··.IE;THE(~I··'1 El...r:\}(.~ r I eli\! ::::: ';;::[:2" 00 STREET LENGTH (FEET) = 900.00 CURB HEIGTH(INCHES) = 6. f.:;TRE:F.~·r 1··IP1L..FI/.J I D·rl···1 (FEET) :::: ;:~f.3. 00 GTPEET CRCrf.:;E3Fr-7:j!....L (DeC I !"ll{'"1L) ..... .0:::00 f.3F'EC I r::-l ED hILWIElI::'H DF 1·-lAL..F~:~TF::;!::.ET~:3 C(~IHR/ 1 NO HUhIDFF::::: :;:: ji":~' TH(.·~'''';EL·r I t'IE GOt·"IP!...! rED llf.3 I I\ID r![(:)hl FLDIiJ (i:~FS) .... :~;:~" 4'~7' f:3T nEET F"LCWJDEPTH (FEE::T):::' .. 2!5 HALFSTREET FLOODWIDTHCFEET) = 6.05 AVEHAGE FLOW VELOCITY(FEET/SEC.) -2.57 PRODUCT OF DEPTH&VELOCITY = .63 t;Tr~F.[::TFLDv,1 TI=t:(:~~'/El.;r nH:: n·n N):::: 5. :::3::3 TC (H no :::: 14 .. jA 10 YEAR RAINFALL INTENGITYCINCH/HDUR) = 2.425 SO I L CLJ)~3~3 I F" I C{:lT IOI\! I SliD II SINDLE FAMILY DEVELOPMENT PUNOrF COEFFICIENT = .5500 SUBAREA AHEACACRES) = 3.10 SUBAREA RUNOFF (CFS) -4.13 SUMMED AREA (ACRES) = 3.30 TOTAL RUNOFF (CFS) -4.51 END OF SUBAHEA STREETFLOW HYDRAULICS~ DEPTH(FEET) = .2f.3 HALFGTREET FLClDDWIDT~I(FEET) -7.71 FLOW VELOCITYCFEET/SEC.) = 3.16 DEPTH·*'..jELDC I 'rv :::: **************************************************************************** FLOW PROCESS FROM NODE 6!5. 00 TD NODE 66.00 IS CODE =4 ---------------------------------------------------------------------------- »»>COMPUTE PIPEFLoW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< =======c================~===~=====~=====:==~======::::::::::========~=============== DEP'rH OF FLOI,..) I r···.1 1. B .. 0 INCH P I FE IE; '7 .. ;5 I t'·ICI···!E5 PIPEFLOW VELOCITYCFEET/SEC.) = 6.5 UPSTREAM NODE ELEVATION = 283.C~ DOWNSTREAM NODE ELEVATIDN = 282,,00 FLDI,'JLENGT!"I (FEET) :::: 60. 00 ;..,.!tll\it'~ I I .... !GE: t\1 ::::: u 0 1 ~::: G I \·/EN PI F'E. D I ('W'Il::::TEF;: ( I I·'·~CI·-I) :::" :!. 8" 00 1\IU!··1BEFt: ()F p:r PE:;-3 PIPEFLClW THRU SUBAREACCFS) -4.51 TF;~{4"')EL T II··lE (1'11 H.) ::::: • 1 ~5 TC (t'1 H'<I.) :::: ll.L ~50 FLOW PRorESS FROM NODE 1 :.: :>::: :> >DE.31 Ubi;"·) T [. 11\1i)[F'E:hlI.)[~I\! l ;~;'I HE.(::ll--i !··:UFi. c:::CJI)Fl....I...J!:~.I···.ICE.< .:. <. <: :" »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««<: =================================================~==~==========:============:= I C:::ONFLU[NCE VALU[S USED FOR INDEPENDENT STREAM TIME OF CONCENTRATIONCHINUTES) = 14.30 RAINFALL INTENSITY' (INCH.!HOUR) = 2.41 TOTAL STREAM AREA (ACRES) = 3.30 TOTAL STREAM RUNOFFCCFS) AT CONFLUENC~ - CONFLUENCE INFORMATION: l3TFU::r~t'1 FHJNDFF 'T I !'lE IhITENf:; I TY 1\!Ut·mE:R (CFE» n·UN.) (INCI···I/HDUrn 4 .. 5:1. ----------------------------------------------------------------------~----- 1 ~5il . 1 l.j. 1 .. :; .... ' n 1. t~) r" .1::. " ~.i40 ~. ~:. il· .. I:~'J t:~1 15 . 19 2t: ::~ 1 (;:, ::::; 4 ~) 1 14 ~.::.O .-) .'·1· on . .. .L •• n F\{':') I !\~F' (:i! ..• l....·-I NTEN!:3 I TV -Rf..1T 10 COI'.IFLUEh!CE FORt·1UL{·) U::3ED FOn ::::; ~;TF('EPlt'1~:3 VARIOUS CONFLUENCED RUNOFF VALUEs ARE AS FOLLOWS~ 62.94 58 .. 67 60 .. 61 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: Fit.JhIOFF (CF3 j::: 62 .. 94 T I 1'1E (1"1 I NUTE:::;) .... 1 ~2~. :!. 62 TOTAL AREACACRES) = 43.40 **************************************************************************** FLOW PROCESS FROM NODE 11.9.00 TO t··K1DE 1 :,;::0.00 I D CODE :::: "., ... _ ............ _ ......... 0 .......................................................................................... __ ... _ ....... ___ ............ 0 ................. _ ... N." ...................................... , __ ........ _ .. _ ........ ___ ................. _ ..... _._ ............ _ -... _ •• -----_ ... -0 .......... --....................... ... ==================================~========================================= • BOIL CL(iBSIFIC(.YfION IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = I NIT I (-~L. t:;UH(~HEA FLOvJ···-L.EI\IGTH (FEET) .... 1. 0(>" 00 \'..IP!3THr::{'~lvl EI .• E\/PIT I Clt\1 :::: ~50E:). 00 DOWNSTREAM ELEVATlbN = ELEVATION DIFFERENCE = :? 00 ., ~:.i~iOO UFm(.~Ij\1 BI..JJ:3(.·)I::;:E{i (JVE:Rl. .. I~hlD T I !"11::: CJ.F FL..Cl\'·j (t"1 I hll.)TE~3) .... 10 YEAR RAINFALL INTENSITY(INCH/HDUR) = 3.420 BUBAREA RUNOFF (CFS) -.38 TOTAL AREACACRES) = TOTAL RUNOFF (CFS) - f:J; ·• ... \;:-·('1 (.J •• ,:. 1 7 **************************************************************************** FLOW PHOCESS FROM NODE 1.20. 00 '1'0 NODE 1. :,? 1 , 00 IE; CODE:::: ", ..................................... ','f" ................................. _ ••• _ !"" ........... _ • ____ ....... _ ..... ___ ... ___ ..... _ ... _ .......... __ ... -........... _ .......... ".M ................................... _ ..... -...................................... -.-......... -......... -....... _-....... -....... -_ .... , .. -.... _.-... .. »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ~===================================================~======================= I UPSTREAM ELEVATION = 308.00 DOWNSTREAM ELEVATION = 288.00 STREET LENGTH (FEET) = 450.00 CURB HEIGTH(INCHES) = 6" STREET HALFWIDTH(FEET) = 28 .. 00 STREET CROSSFAlLCDECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF ~ 2 ~~TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -2.31 STnEET FLOWDEPTH(FEET) = .2:1. HALFSTREET FLDODWIDTH(FEET) = 4.40 AVERAGE FLOW VELOCITYCFEET/SEC.) -3.71 PPODt.lC:T DF DEPTH8,'v'EL..DC:r. 'fY' :::." STREETFLOW TRAV[LTIMECMIN) = 2.02 10 YEAR RAINFALL INTENSITY(INCH!HDUR) = 2.972 :30 I L ~~I....!~f.5S 1 F I CA'l' I Dhl IS 11 D II SINGL.E FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA (ACnES) = 2.40 SUBAREA RUNDFF(CFS) - SUMMED AREA (ACRES) = 2.60 TOTAL RUNOFFCCFS) - END OF SUBAREA Sn~EETFlOW HYDRAULICS~ DEPTH (FEET) :::: " :::~t:; 1···I(ll....FElTHFET r·L.CClDt,tI DTI···! (FEET). .... 6 .. B8 ~s II t::l::? l~ n :3;() ...----------------------------- , • , FLOW PROCESS FROM NODE 6':.;' r. 00 'ro NODE 70" 00 I f:~ C::ODE:: :,' .......... ~" •............... M", .......... " ......................... , ........... _ ....................... 0 ....... _., ...... _00 ........................... 0 .................... _ .. _ ........ , .................. 0 .. M .................. _ ............. ,._ ... 0 ....... "0'. _0., ..... __ ._ .............................. _ ••• ___ •••• ,:_ ..... __ A _. _,., ..... _ ............ . »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< =================================~========~==~============================== 30 I L CL.i:2jB\:~ I F I C{~T H)N I SliD II SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL. SUBAREA FL.OW-L.ENGTH(FEET) -100.00 UPSTREAM ELEVATION = 351.00 DOWNSTREAM ELEVATION = 349.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERL.AND TIME OF FLOW(MINUTES) 10 YEAR RAINFALL INTENSITYCINCH/HOUR) = 3.420 3UBAREA RUNOFF (CFS) -.38 TOTAL. AREA (ACRES) = TOTAL RUNOFF (CFS) - **************************************************************************** FL.OW PROCESS FROM NODE 70, 00 ''1''0 !\!ODE 7:1..00 ID CODE :::: ................ .o-..... _ ......................... ~ ....... _ ............. _._ ; .. _. ___ ... __ .. _"'! __ ..... - - _ ..... ___ ......... _ .. _ ._ ... ____ ... _ .......... '. __ ... ~ ............... "._ ..... __ ......................... , ......................................................................................... _ ..... "-..... __ ... _ »»>COMPUTE STREETFL.OW TRAVELTIME THRU SUBAREA««< :::-.: = :::::::: :,-.:!'.!: :::.-: :::::.;::-.: :!.'::::::::::::::::::: !'.:::::'::::::: :'.:::::::::::::::: =::::::::::::::::::::::::::::: :::::::::: :::::::::: ::::::::::::::: :.":::!."!.": ::."::.-:: ::::::::: ::::::::: ::::: :-.::: :::::;::;::::: ::::.: ::-.:::::::::::: ::::: :'.:::;::: ::::::::.: :::-.: ::::::-.::::-.:: ::::::::: !:::: ::::::::::::::: ::::;:.= :::: ::::: !:-.: ::::: :::::::::: ::::: UPSTREAM ELEVATION = 349.00 DOWNSTREAM ELEVATION = 277.00 STREET LENGTH (FEET) = 1000.00 CURB HEIGTH(INCHES) = 6. STREET HAL.FWIDTH(FEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED UDING MEAN FLOW(CFS) -5.02 STREET FLOWDEPTHCFEET) = .25 HALFSTREET FLOODWIDTH(FE~T) = 6.05 AVERAGE FLOW VELOCITY(FEET/SEC.) -5.18 PRODUCT OF DEPTH&VELOCITY = 1.28 STREET FLOW TRAVELTIME (MIN) = 3.22 TC(MIN) = 11,,52 10 YEAR RAINFALL INTENSITYCINCH/HOUR) = 2.769 SD I L CL(..)t:'~3 I F I Ci-'IT I DI\! I S II D II SINGLE FAMIL.Y DEVELOPMENT RUNOFF COEFFICIENT = .5500 ::31..JBAF(E('~ P1F'.:[-::A (tlCF<ES;' ::::: 6 .. 1 0 ~31 .. JBAFU::{~ !::;~UNC1F::F (CF'B) ... -() " 2'::;- SUMMED AREA (ACRES) = 6.30 TOTAL RUNOFF (CFS) -S.66 END OF SUBAREA STREETFLOW ~YDRAULICS~ DEPTHCFEET) = .30 HAL.FSTREET FL.OODWIDTHCFEEJ) -8.54 FLOW VELOCITYCFEET/SEC.) = 5.70 DEPTH*VEL.OCITY = 1,,69 ***************~************************************************************ FLOW PROCESS FROM NDDE 71 .. 00 TD NODE 7B.OO ID CODE ::: ----------,------------------------------------------------------------------ »»>COMPUTE PIPEFLDW TRAVELTIME THRU SUBAREA««< »»>UDING UDER-SPECIFIED PIPESIZE««< =============================================================~==~=========== DEPTH DF FL..CII/,j IN 24. 0 INCH PIPE IS PIPEFLOW VELOCITYCFEET/SEC.) = 10.6 UPDTREAM NODE ELEVATION = 277.00 DOWNSTREAM NODE ELEVATION = 274.00 E=:'. 0 I NC:/--'IEE FL..D1fJL£NGTI-'! (FEET) ::::: 80. 00 t,1('!t\IN I NC:)~::; N :::: • o:t :~:: GIVEN PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES - F' I F'EFL..CH',) THr::lJ EL.IBr-)f~f;:'l:') (CFf3) 00-C?-. 6t.:. TRAVEL lIMECMIN.) = .13 TC(MIN.) = 11 .. 64 ***************************************************.************************ FLOW PROCESS FROM NODE 78. 00 I ~:} CODE ::::: 1 ---------------------------------------------------------------------------- • I CONFI....UEhIC[ V{~IU.JES U~:}ED FOP I t\IDEFEI\!DENT STF~E(~I"I . 1 (':)F(E:: TIME OF CONCENTRATION(MINUTES) = 11.64 RAINFAll INTENSITY (INCH./HDUR) = 2.75 TOTAL STREAM AREA (ACRES) = 6.30 ·T'oTt·)L .. ~:;Tm::'(:il"1 HL.Jt··,IOFF ([:FS) tIT CONFLUENCE ::" t·7'.66 ---~---------------------------------------------------------------------_ ... - »»>RATIDNAL METHOD INITIAL SUBAREA ANALYSIS««< =====================================================================~====== SCJ I L CLJ~E;f.3 I F I C{1T IOhl I B "0" S II'·.!GLE F('·)t'1 I LY DEVELOPI"1ENT F:t:f...JNOFF CCJEFF I C lENT :::: • ~5~500 INITIAL SUBAREA FLOW-LENGTHCFEET) -100.00 UPSTREAM ELEVATION = 325.00 DOWNSTREAM ELEVATION = ELEVATION DIFFERENCE = 1....I~<B(lN B!...Inf~r:~E::{~ Ol../ERL..f:iND T I t'IE OF FLO~'J (1····1 I r··.IUTES) .... 10 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.420 SUBAREA RUNOFF(CFS) -.38 TOTAL AREA (ACRES) = .20 TOTAL RUNOFF (CFS) - (:::' 1">00 1 .... ' U of: .. l I FLOW PROCESS FROM NODE T~~. 00 TO r,IDDE 7[1" 00 1 S CODE: ::: »»>COMPUTE STPEETFLOW TRAVELTIME THRU SUBAPEA««< ===================================~============================~=:======:== UPSTREAM ELEVATION = 323.00 DOWNSTREAM ELEVATION = 275.00 STREET LENGTHCFEET) = 850.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVEL..TIME COMPUTED USING MEAN FLDW(CFS) -2.37 STREET FLDWDEPTH(FEET) = .21 HALFSTREET FLOODWIDTHfFEET) = 4.40 AVERAGE FLDW VELOCITYCFEET/SEC.) -3.80 PRODUCT OF DEPTH&VELOCITY = .81 STREETFL.O~'·.J TR{:~'v'ELT H'IE (t,u N) ::: ~s. 7~~;; TC (lvl H·,j) = :!. 2. (}~:: 10 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.692 Be.! II.. .. CL.f.iSE3 I F I C(':)T I 01\1 IS " D II SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 E;UB(')RE(') {~lf~E{~ ((~)CRES) :::: 2. 70 ~3UE:(:)F~En RUNDFF (CF~3) .-.. SUMMED AREA (ACRES) = 2.90 TOTAL RUNDFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS= DEP1H(FEET) = .25 HALF STREET FLOODWIDTH(FEET) = 6.05 4.00 4. ::::.7 FI_.D!;·J Vf.=:L.ur:::: I TY (FEET I ~3EC::") ::: ·4" ~5:L DC::PTH-ii·\/ELDC I TY ::: :I. ,. J.:? ~*************************************************************************** FLO~ PROCESS FROM NDDE ·lE. 00 I ~:; CDDE ::::: •• -... ~ ,,,N '"N ..... "OM .. OM ... M •• _ •• ON ..... '"'' ••• __ OM ." .. __ 0 __ •• OM __ '.OM •• _ "'M __ ..... _ .............. _ ._ ........ _ ....... OM ... _ ,.OM ..... _0_ .......... ___ "OM ....... _ ._ ".N •• _ .................... _ ........ _ 00_ ..... ",N .OON ..... ~ ............ ".N ".N .. ~ .. ' ....... _ ................ _ ......... _ .......... ..-... .. »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ===========================================================~================ DEPTH OF F=-L..DvJ I I\~ 113 n 0 I t··,leH P 1 P['::~ 1 B 7' . 0 I NCHE~3 PIPEFLOW vtLOCITYCFEET/SEC.) = 6.9 UPSTREAM NODE ELEVATION = 275.00 DOWNSTREAM NODE EL.EVATION = 274.00 FlOWLENGTH(FEET) = 50.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES -:I. PIPEFLOW THRU SUBAPEA(CFS) -4.37 TRAVEL. TI~E(MIN.) = TC {n r. r·l. J "':: 12" .I. ~5 **************************************************************************** FLOW PROCESS FROM NODE '7·4. 00 TO NODE 70" 00 I t3 CCHlE:: .:::: MO .. "_ .......... _ .. ",M .................... _00. _ ...... _ ..... MO,' .................... M'" .......... _ •• _ ... _ ........... "0_"_ .................... _0 .............. _ .. oo ...... _. __ ... M. _o. ........ -0 _ ... "0_ .......... _ ... NO ............ -.". _0 ......................... " ..... _ •• ~ .......... _ ............. _:-..... MO •• -!'" ..... -•• , ••••• "" ....... . »»>DESIGNATE INDEPENDENT STREAM FOR CoNFLUENCE««< ::::: ::::: ::::: ::::: :::: ::::: ::::: ::::: ::::: :::: ::::: '::::.:::.:: =:: .:::: ::::: =; ::::: ::::.: ::::: ::::: ::::: :::: :::: ::::: :::-.: ::::: ::::: ::::: ::::: ::::: ::::: :::: ::::::!::: ::::: ':::: ::::: :::!: ::::: :::: :'.::. ::::: ::::: ;::::::: :::: !!:'.:;:;: :::: ::::: ::::: ::::: ::::: :::': ~:::: ::::: ::':: ::::: ::::: ::::: ::::: ;:':: :::::.::::: :-.::: :::: :::: :;-:: ::::: ::::: :;:: ::::: ::::: :::::,::::: , CDNn .. .l..JEt\ICE \!(ILUE:S U3ED FOR 11\IDEPENDEI\IT f::lTRE(.:\I\·1 2, (.~nE:: tIME OF CONCENTRATION (MINUTES) = 12.15 n{~It\IF~·)! ... L.. II\!TEN~31l'y (II,-ICH. II··IOUH) :::: 2. bH TOTAL S'fREAM AREA (ACRES) = 2.90 TOTAL STREAM nUNOFF(tFS) AT CONFLUENCE = 4.37 **************************************************************************** FLOW PROCESS FROM NODE "l~5. 00 TO NODE 76.00 I f:3 CDI)E :co;; »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ============================================================================ 3D I L CI....{·I~;E I F I C(:~T I DI'·~ I S II D " SINGLE FAM!LY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH (FEET) -100.00 UPSTREAM ELEVATION = 319.00 DOWNSTREAM ELEVATION = ELEVATIO~ DIFFERENCE = :31'7 II <)() :2: II ()() i...lRB(:1t···~ E;!..JBflRE{-\ OVr:~J;:U:1ND T II"'1E OF F:Lm~ (1'"1 I NUTE~;) ... " 10 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.420 SUBAREA RUNDFF(CFS) -.38 TOTAL AREA(ACRES) = TOTAL RUNOFF(CFS) - **************************************************************************** FLOW PROCESS FROM NODE 76.00 TO NODE 77.00 IS CODE = 6 .... -...... :;: .:;: .:;: .:;: ::;: ;::; ;:; ~.; ;:: ;.:~; ::;: ~;;: ._ .. ~; ~~ ;;~ ~~ ~~ :~ ;.~~ ;:~ ~"; ~~ -":~ ~~ ~~ ~~~ ~~ ~~: :~ .:~ ;:~ ;;~ -." :~: ~~ ;;~ ~~ .-. ;~ ~~ ~ ;;~;~ ~~ ~~:; ::; :~ ::;~ :::: ......... -.. " " .. '--.. -_ .. _, "'-....... -........ " ... " ... -... --_ ..••... " -.... . =======~===~==================================~==========================~== UPS'fPEf:\I'il [l .. EV{'~T I Dt'-I :"= ::;:1. ? . 00 DC)~'''/NSTF~E(·)I··'1 EL..E'v'?-\T ION ::: ?7::) = 00 STREET LENGTH(FEET) = 750.00 CURB HEIGTH(INCHES) = 6. STREET I~ALFWIDTH(FEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPEC I r:-l E:Ij 1'.!I..JI'·1BEF: OF 1···!{;!....F;:rn:~:EE:TS C(':IFmy' I I\H3 F~UnOFF::::: ~;;:: **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -1.33 STREET FLDWDEPTH(FEET) = .18 HALFSTPEET FLOODWIDTHCFEET) = 2.74 AVERAGE FLOW VELOCITYCFEET/SEC.) -3.45 PRODUCT OF DEPTH&VELOCITY = .62 STREETFLOW TRAVELTIME(MIN) = 3.63 TC(MIN) = 11.92 1 () 'y·E(.."iP F~{i I NF f:)Ll.. I NTENEl I T'"{ ( I t\ICI···1 I' 1···jl]I..Jf:;:) ::-.:: :;;::. 707 f:3() IL Cl...('Y:3~3 I F-I Ci~Yr I Dt··~ IS 11 D " SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA (ACRES) = 1.30 SUBAREA RUNOFF (CFS) -1.94 SUMMED AREA(ACRES) = 1.50 TOTAL RUND~F(CFS) -2.31 END OF 3UBAREA STREET FLOW HYDR~ULICS: DEF"TH (FEET) ::::: • 2:1. Ht:·:jI....F·E;TPEET FLODD!:,·.} I DTH (FEET) ..... ll· .• 40 FLOW VELOCITY(FEET!SEC.) = 3.71 DEPTH*VELOCITY = .79 ********~***********************~****************************************~** ::-:: :.::: :::=::::: :'::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: ::::::::: ::;::;;::: :::: ::::::::::::::: :::: ::::: :::-.: ::::: :::::::: =:: ::::: :::::::::: :::-.: ::::: :::-.: ::::: ::::::::: :::-.: ::::: ::::: ::::: :.:::: ::::: :::::!::: :.:::: :-.::: !'.::::::.:: :::: ::::: :::::. :::::-::::: :::-.: ::::: ::::: ::::~::::: ::::: ::::: ::::: ::::~ ::::: ~:: ::::: ::::: ::;:: ::::: ::::: :::-.:::::: :::::,::::: :::: ::::: DEPTH OF FLOW IN la.O INCH PIPE IS 4.0 INCHES PIPEFLOW VELOCITYCFEET/SEC.) ~ 8.0 I...IP~:; n:;:FPlt1 !""!i]I"IE ELE',,'{Yr I [n·,1 :::". 27G .. ()I) DDl'·H··.1~T1T::E(~)I·ll I·.IODE El...EI..NYT 1 DN ::::: 2711-" r:)(\ , • I GIVEN PIPE DIAMETER{INCH) = 18.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREACCFS) -2. :::::J. 'rRAVEL rIMECMIN.J = 1 7 \I • I 'TT~ n'I.f.I',I.) :::" **~************************************************************************~ FLOW PROCESS FROM NODE 7"7 . 00 TO I\IODE -78. 00 U; CODE ::::: »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< :>:>:>:> >r.:ih!D CDI"'IPUTE \,'M';: I mm CCJhlFUJEb!CED STHE(.in \·./AUJEEl< <: < < <: J. ===========~===========================================================~==== c;m···.IFLUEt\!CE t,/fiLUES ,-mED FOR H-..!DEPEhIDENT STF~E{\I"1 ~~~ ('~P.E r. TIME OF CONCENTRATION (MINUTES) = 12.09 RAINFALL INTENSITY (INCH./HCJUR) = 2.68 TOTAL STREAM AREA (ACRES) = 1.50 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 2.31 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY I\II..WIBER (eFE)) (t"IIN.) (H,ICH.lHOUm -------------------------------------------------------------~-------------- 1. c'' t:::t.! 1 1 6;.:" .-, 7·!.]·9 -y · · .1::. n :':;:: Ll :3:' 1 ~, 1 I:::' .'., 1~)7~5-· ~:. · ~ • ..1 .\!-» -:!" r-, ":!" 1 :1. ;:: ()i.? .-\ t:.!f.:~:~:; .... ' .t=:. · .... 1 · .,:: . . RAINFALL-INTENSITY-RATIO CONFLUENCE FORnULA USED FOR 3 STREAMS VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FDLLOWS= 1 b" H3 16 n 08 16. 1l. COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS~ PUI\IDFF (CF'~3) :::" 16.18 TII'1E i.I"1J..N\.JTET;) --1.1.. f.~4~::; TOTAL AREACACRES) = :1. o. "70 **************************************************************************** FLOW PROCESS FROM NODE 7B" 00 TO t'mDE E:l2 .. O() I ::;.:, CODE :::: -------------------~------------------------~---------------------------~---»»>COMPUTE PIPEFLOW TRAVELTInE THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE<:«« ====================~===================================================~=== DF::T'TH OF FL..DvJ I t,~ ~;:~4. (1 I riCH F I FE I f3 ti). 6 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 13.8 UPSTREAM NODE ELEVATION = 274.00 DDll·JN;::nF~E(.~t"1 NODE ELEV("H I Obi ::: :,;;:58" 00 FLOWLENGTHCFEET) = 300.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES -1 PIPE~LOW THRU SUBAREACCFS) -16" 18 TRAVEL TIME(nIN.) = .36 TC(MIN.) = 12.0l. **************************************************************************** FLOW PROCESS FRon NODE 78. 00 TO hlCJDE B2. 00 IS GDDE: ::" ------_._-------------------------------------------------------------------~ »»>DE~:3Ii.3Nri"l-E IhIDEPE:JHJEt-·n ~::rTFU:::.?~M FC.)R CDhIFL .. I..JEr,ICE««< =====================~===========================================~========== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1. ARE~ TIME OF CONCENTRATION(MINUTES) = 12.01 RAINFALL' INTENSITY (INCH./HOUR) = 2.70 TOTAL STREAM AREA (ACRES) = 10.70 TOTAL STREAM RUNOFFCCFS) AT CONFLUENCE = 16.18 **********~***************************************************************** FLOW PROCESS FROM NODE Bf.L 00 IS CDDE ::::. ..... MOM __ .................... _., ..... HM' ....... ,.. ....... 0 ................... _ .......... _ ........ ___ .. 0., ............... _ .................... __ ....... _ •• , ......... _ .......... _H, ......................................... _ ... _ ............... _0, ................... _ 0 __ ,,_ .................... , ..... _.:. ..... "'" MO ...................... _ • ., .... . »:»>RATIO~AL METHOD INITIA~ SUBAR~A ANALY818««~ , ED I L CI....(.i:;~3 I F I C(.·~ T I Dl\1 I El II D 11 SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FE~r) -100.00 UPSTREAM ELEVATION = 345.00 DOWNSTREAM ELEVATION = 343.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOWCMINUTES) - 1 0 YE(~H F{{i I t···.IF(.)L.L I NTE'\I~:3 I .. !"''{ ( 11'·.ICH I I'-IDUF~) ::::: :3. 42() SUBAREA RUNOFF(CFS) -.38 TOTAL AREA (ACHES) -n :~::() TD1AL RUNOFFCCFS) - **************************************************************************** FLOW PROCESS FROM NODE B l • 00 I!3 CODE ::: -------------_._------------------------------------------------------------- »»>COMPUT~ STHEETFLOW TRAVELTIME THRU SUBAREA««< ::::: ::::: ::.-:: :::.:: ::::: :::: ::::: ::::: ::::: ::::: ::::: ::::: ::.:: ::::: !.-:-..: ::::: ::::: ::'.:: ::::: ::::::::: :::: ::::: ::::: ::::: ::::: ::::::::: :::: ::::: :::: :::: :::: :::: ;:::: ;::: ::::: :.::: ::::: ::::: :::::=.: :::: ::::: :-.::: ::',:: ::::: ::::::::: :::.: :::::"::::: ::::: :.::: ::::: :::: !::;: :::: :::::::::: ::::: ~: ::::: ::::: ::::: :::: :-.::: ::::: ::::: ::".:::::: ::::: ::::::::: !:::: ::::: • UPSTREAM ELEVATION = 343.00 DOWNSTREAM ELEVATION = 259.00 STREET LENGTHCFEET) = 1000.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH0=EET) = 2a.00 STREET CROSSFALL(DECIMAL) .0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FL.DW(CFS) -4.84 :3Tm:::ET FI....U~'mEPTH (FEE'r)::: . :~?~; HALF STREET FLOODWIDTHCFEET) = 6.05 AVERAGE FLOW VELOCITYCFEET/SEC.) -4.99 PRODUCT OF DEPTH&VEL.OCITY = 1.24 STREETFLOW TRAVELTIME(MIN) = 3.34 TC(MIN) = ll.64 10 YEAR RAINFAL.L INTENSITY(INCH/HOUR) = 2.750 ~::;D I 1.... CLP1E;E; I F I C{~T I 01\.' IE) ., D II 5 INGLE F (.:11"1 I L..Y DE\I[:L..DPI·'1EI\IT F:UI···IDF·r:· COEFF' I C I E:"'~T ::: . ~j~500 SUBAREA AREA (ACREE) = 5.90 SUBAREA RUNOFF (CFS) -8.92 SUMMED AREA (ACRES) = 6.10 TOTAL RUNOFF(CFS) -9.~) END OF SUBAREA STREET FLOW HYDRAULICS= DEPTHCFEET) = .30 HAL.FSTREET FLOODWIDTH(FEET) -8.54 FLOW YELDCITYCFEET/SEC.) = 5.49 :I l ":r •• 11 (,:) ••• :' ************************************~*************************************** FLOW PROCESS FROM NODE E: 1. • 00 TD t'IDDE .. f.! . ..... ..... ..... ..... ..... ... _ ._M ..... _ ....................... _ ... _ ............... _ .... _ .. __ ..... _._ ....... _ ....... _ ............. ~ .. _ ............ _ ..... __ '"'' ... _ ................... _ ............ _ ................ _ ........ _ ........ _ ..... _ ... _ .... _ .. -....... _ .. _.-._ ..... -... -.,,-.. _ .................... ' ... _ ....... _ .... . »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ========================================================~=======~=========== DEPTH OF FLOW IN 18.0 INCH PIPE IS PIPEFLOW VELOCITY(FEET/SEC.) = 10.1 UPS'fREAM NODE ELEVATION = 259.00 DOWNSTREAM NODE ELEVATION = 258.00 FLOW LENGTH (FEET) = 30.00 MANNINGS N = .013 C7J I \,..IEt" PI F:'[ D I {~nETEF~ ( I r,ICI--l) :.::. 1 £~. (H) 1\It..WmE::F~ OF P I PEE _.. 1. F' 1 PEFI....m',j Tl .. IFU.J ::3UB{::lF~E(.'}1 (CFG) _.N 9. 30 THIVv'[L.. TIHE(t-'lIN.) ~::: .O~3 T[n'UN.):::: 11.69 **************************************************************************** 1·-... -~:~ ~:~ ~::.-:~~ :.:: ~::: ~:: ~~ ~~ =~.-~~ :~: ~ ~:~ .. _. ~~~ ~~: ~~~ .. ---... -... -~.~ .~-. :~~ ~:~ "'-~:.: ~~ ._-~~:~ =~ ~~ ._-----._-~:~ .:-~~ ~::~ 'N_!.~ ~ .N_ ~= :~:=~:= ... ,:~ ... -... N ... -.~~ .......... N_ --... N _.N .--"'N._ ... N ... N ... - »»>DESIGNATE INDEPENDENT STREAM FOR CO~IFLUENCE{«« ~==========~================~=============~================================= COt··IFL..,U[:t\ICE Jv'f~\L..UEB UE.;ED FDF\ I 1\IDE:PENDEt··.IT. ~)TP·E{o~lt/l :;;:: PinE:: TIME OF CONCENTRATION (MINUTES) = 11.69 Pf'UNF{iU .. H.ITEhl~3ITY (H·JCH. /HCLH~:) =:: 2. ",I·ll· TOTAL STREAM AREA (ACRES) = 6.10 'rDT {.~Il... ~:;TF:;'F (d"l HI . ...It\ICIFF (eFE3) (.yr CUt\!Fl..l...lENCE ~"': \.'7'" ~;::o , • I **~***~**~***************~************************************~************* f3~:.i .. 0',) TD NDDi:::: »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ::::: :.-::: ::::: ::::" :::: ::::: :'-.;: ::-.:: ::::: ::::: ;:::: :::: :::: ::::: ::: ::::::::: ::::: :::.-:-::::: :::: :::: ::::: :::: =: :;-:: ::'_; ::::: :::: ::::: ::::: ::::: ::::: ::::: ::::: ::::::::.: ::::: ::: :. .. .;: ::::: :::: :::::::: ::::: ::::: ::::: :::: :::: ::::: :::.:: :::::: ::::: :::: :::: ::::: :::: ::::: ::::: :"::: ::::: ::::: :::: ::::: .::::: ::::: ::::: :::: :;:;: ::::: ::::: :!:.:: :::: :::::'::::: ::::: ~mIL CL..(:\~3SIF:-IC(':~TION IB "0" n I t\I(;)I....E F(.:)t'·1 I LY DE')EI....CJPt"IEr-,IT nUt,IDFF' Cc)EFF~ I C lENT :::: »~5~:iO() INITIAL SUBAREA FLOW-LENGTH(FEET) -100 .. 00 UPSTREAM ELEVATIDN = 344.00 DOWNSTREAM ELEVATION = 342 .. 00 ELEVATION DIFFERENCE = 2.00 UF~B(,W,I SI..JB(iF;:E{4 D'··/I:~J~~L{it'.ID T I t"1E OF FLmJ (t"1 I LIUTEB) .. - 10 YEM~ Rf·HNF(.iU .. INTENSITY(INCI···I/I-·IDUr·~~) :::: :2:: • .<l:'?O SUBAREA RUNOFF(CFS) - TOTAL AREACACRES) = .20 TOTAL RUNOFFCCFS) - **************************************************************************** FLOW PROCESS.FROM NODE E;:6. 00 TO hlDDE E37 .. 00 1:3 CUDE ::::: f.::, ---------------------------------------------------------------------------- =========================~============================~=================~=~= IJPSlnEAM ELEVATION = 342.00 DOWNSTREAM ELEVATION = 269.00 STREET LENGTH (FEET) = 900.00 CURB HEIBTHCINCHES) = 6. E:;--rT:EET HPd .... Fv·J I DTH (FEf.::T) :::: :,7::(;3" 00 STF(E::E'r C:;F;:DElSFf~tLL (DEC I t·ll~IL.) • 0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) -2 .. 52 STREET FLOWDEPTH(~EET) = .20 HAL.FSTREET FLOODWIDTHCFEET) = 3.57 AVERAGE FLOW VELOCITYCFEET/SEC.) -5.13 PRODUCT OF DEPTH~VELDCITY = 1.01 STI~(EETF·L..CJV'.I Tr~A\.JELT I t"lE (t1 IN)::: :,;:: .. '::;'2 TC (1"1 I I'~) ":: :I. 1. • 22 10 YEAR RAINFALL INTENElITYCINCH/HOUR) = 2.816 BOIL.. CI .. {iSBIFIC('~Tlc)N IB "D'l SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA (ACRES) = SUMMED AREA(ACRES) = ~) II ()() SUBAREA RUNOFF (CF8) - TOTAL RUNOFFCCFS) - END OF SUBAREA STREET FLOW HYDRAULICS: DEPTH (FEET) = .25 HALFSTREET FLOODWIDTI-I(FEET) -6.05 l~. II 3,Q· 1.1·= ? 1 FL.OW VELOCITY(FEET/SEC.) = 4.86 DEPTH·j",'v'ELOC I T--r' ::::: 1. :20 **************************************************************************** FLOW PROCESS FROM NODE 8'7 • (H) 'rD hlDDE El2. 00 IS CDnE ::: -------------------------------------------------------------------~-------.-»»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBA~EA««< »»>USTNG USER-SPECIFIED PIPESIZE««< ===========================================================~================ D~PTH OF FLOW IN 1(;3 .. 0 INCH PIPE IS 4.7 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 13.0 UPSTREAM NODE ELEVATION = 269.00 DOWNSTREAM NODE ELEVATION = 258 .. 00 FLOWLENGTH(FEET) = 100 .. 00 MANNINGS N = .013 lJ I l.,lE:J·.1 F' I PI:: D I P"··1E=':TER ( I hleH):::: :L 13. 00 1\1\J1··1BEJ~ DF:: P IF'E3 ..... :I. PIPEFLOW THRU SUBAREA (CFS) -4.71 TRAVEL TIME(MIN.) = .13 TC(MIN.) = 11.35 **************************************************************************** . . FLOW PROCESS FROM NODE B7" 00 TO 1\1 0 Df.=': B2.00 IS CODE ::~ ••••• _ ........ ,;. -........... _ .............. , ..... _ ... _ ... _ .... M .................... _ ........ ___ ••• _0 .. _ .. __ ...... _ •• , _. __ ... , ........................... ~ ..... _ ..................................... _ ......... ! ........................... _ ....................... " • .-;. MO ................. ____ .. ", _ .... _ ....... _ ................... . »»>DE3IGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMHJTE VARIOWS CONFLUENCED STREAM VALUES««< =========~==================~===:=~=========-====================~----------. , • I TIME QF SONCENTRATION(MINUTES) = 11.35 RAINFALL INTENSITY (INCH.!HDUR) = 2.80 TO·T,C'I! ... ETPEPlt:i tiF:Er:l (l!:icr~EE;) ,:::: :~::" 00 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 4.71 COI'·,IFLL.IEhICE I t\!FDH!;!r~T I ON ~ STREAM RUNOFF TIME INTENSITY NUMBEH (CFS) (MIN.) (INCH!HDUH) .................... "OM ••• _ .................... "'" ... _ " ...... _ ... _ ... _ ........................ NO., ... _ ... _ ........ __ • __ ...... _ .......... 'M" ... _ ............... _0" .... ' ..... ,,_ ,.,_ ....... _ ..... _ ......... 0" ... _ .. 0_ ... __ ............. ;, ....... ". __ 0 .. _ , ................... ~ ......................... _ ............................. ".M ........ .. 1 1 C::l 1 F" 1. ~;;:: 0 1 , .. {:IC?~::.; u .. ::-. of::: . ~:2 (7~ . ::::;() 1 1 " (;jCj' ::':': . 7t.l::::: "W .... ' 4 . 7 1 j. 1 . ~~;~; :? " 7'c;'~5 RAINFALI_-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS VARIOUS CoNFLUENCED RUNOFF ~ALUES ARE AE FDLLoWE: 29.86 29.82 29.44 COMPUTED CONFLUENCE ESTIMATES AHE AS FOLLOWS: RUNOFFCCFS) = 29.86 TIME(MINUTES) -12.006 TOTAL AREA (ACHES) = **************************************************************************** FLOW rROCESS FROM NODE (;32.00 TO NODE Ba.oO IS CODE :" :>:>:> > >cm'lF'UTE F' I F'EF·UJIJ·.] TF~(~l".IEL.T 11\'1E ll·!F;:LJ SUB(:~F;:r::(:·~·;:: <: <: <: <: »»>UEING !.JEER-SPECIFIED PIPESIZE««< =============================================~============================== DEPTH OF FLOW IN 36.0 INCH PIPE IS 11.9 INCHES PIPEFLOW VELOCITY(FEET!SEC.) = 14.7 L.JPSTFE{il"1 j\![JDE El...EV(·H I DN == 2~5S. 00 DOWNSTREAM NODE ELEVATION = 243.00 FLOI!JI....E::t\![;TH (FEET) :== :::'~50. 00 !·"!(..~!\!N I !\IGf3 1'·.1 ":: " 0.1 :::: G I VE:::I\I r' I F'E D I r-~1'1ETEH ( I \···.ICH;. :",: :::::6" Of.) t\!U/,'1F::EH DF P I F'E~.3 .... PIPEFLOW THRU SUBAREA (CFS) -29.86 ·TT;:(WEl... T H1E (I''II N.) =::: • 1.10 TC (\"H h!.) :"": :I. 2 • 1.1-0 82.00 TD NDDE t3t3.00 IS CODE = :I. MO" ....... _ ..... ~ ................................. _ ............. _H' .................... _00' ........ _ ; .................. NO ................................ _ ................ _ .......... _ ............ _ .......... :.. ..... _00 ................... , ............................... _ ... __ ........... _ .......... _ ..... , ............... _ ..... ____ • .:; .......... ~ .. .:;., .. :>:>:>:> >DEf3 I GI·~r-iTE I !···.IDEP1::.!\IDE:NT STI::;:E("~I\'1 FDP CDI\IFLUEI\.ICE:« <: <: <: CCJNF1JJf:J\ICE: V{4L.UES U:::3ED FOH I NDEPEI\lDEhIT ~:3TFU;:~{.:il'''1 :l. (iE:;:E ~ TIME OF CoNCtNTRATIDN(MINUTES) = 12.40 FM I NF t~L..L I HTEN~3 I TY (I Nel .. ·I. / HDUF~):= 2 .. 64 TOTAL ETREAM AREA (ACRES) = 19.80 TO·! .. (.':lL.. ;:3TF;:Erlt·,! F;:UI\!oFF (CF::;,) PIT CDNFLUE:I\!CE ::, :;;~?" 86 **************************************************************************** El? .. 00 TD ",IDDJ?~ '::;'0.00 IS COLiE ,,:: ....... -..... -... _. _. -... -_. -... "'" .................. __ ... _ ... __ ... _ .................... __ ............ -0" _ .......................................................................... " ...................................... ". M'.' ..... "'" .......... ",,_ ..................... _ ........ __ ................... _ .. _, _ .. , ..... ''','' ............ _ .......... . =================================~==================~=====~=:==============~ ~'3oIL. CU:':1~33IF'IC('HIDhl IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH (FEET) -100.00 UPSTREAM ELEVATION = 294.00 DOWNSTREAM ELEVATION = 292 .. 00 EI..,.E\/{:)·[, I UN D I FFEF(EI\ICE ::::: :;::. 00 URBAN SU8AHEA oVEHLAND TIME OF FLoW(MINUTES) - 10 YEAR RAINFALL INTENSITYCINCH!HOUR) = 3.420 SUBAREA RUNOFF (CFS) -.38 , ***~*******~*****************************************~*******~~***********~* FLOW PROCESS FROM NODE eli. 00 IS CDDE :::: »»)COMPUTE STREETFLOW TRAVELTII1E THRU SUBAREA««< 0:::: :::: :.:::: ::::: :::.-: ::::: :::::::: ;:::: ::-.!: :.-::: :::::::::: ::::: :::: ::::: ::::: ::::: ::::: :::: ::::: =:: ::::: =.:: ::::: ::;: ::::: ::::: ::::: ::::: ::::: :::;: ::::: :-.::: :::: :'.:: ::::: ::::: ::::: :::: ::::: ::::: ::::: ::::: :::: ::::: ::::: ::::: ::::: :;:: ::::: ::::: ::::: :::::_;::;: ::::: ::::: :::: ::-.:: :::: ::::: :::"; :::::;:: :::: ::::: :::;: ::::: ::::: ::::: ::::: ::::: ::::: :::": ::::: ::~ UPS'rREAM ELEVATION = 292.00 DOWNSTREAM ELEVATION = 277.00 EnPE::ET LE:!'-,IGTl"l (FEET) ::::: '7'00. 00 CUF$ HE I 13TH ( I NCHEE;) :::: (1. STREEl HALFWIDTH(PEET) = 28.00 STREET CROSSFALLCDECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 ~1d;:TF((:l'v'EI....T H1E CCmFtJTED us I Nl'3 t·1E(.'.:jt'·.1 FLDl'J (CFm -' 4" 64 STREET FLOWDEPTH(FEET) = .30 HALF STREET FLOODWIDTHCFEET) = D.54 AVERAGE FLOW VELOCITY(FEET!SEC.' -2.74 PRODUCT OF DEPTH&VELOCITY ~ .81 STREETFLOW TRAVELTIMECMIN) = 5.47 TCCMIN) = 13.77 10 YEAR RAINFALL INTENSITY(INCH/HoUR) = 2.467 GO I 1.... CL{2'd::;~:; I F I C?YT' I DN I f:l If D If SINGLE FAMILY DEVELO~MENt RUNOFF COEFFICIENT = .5500 ~~LJF=:{:~m::~{; (':ir;:EPI «(·~CF~E::E) ::::: {:,. ::::;0 f3UBnRE('~ P.!..lt'··ICJFF (CFS) ..... SUMMED AREACACRES) = 6.50 TOTAL RUNOFFCCFS) - END DF SUBAREA STREET FLOW HYDRAUlICS~ DEP'T 1 .. ·1 (FE::E::r) :::: • ::~6 H(.iLF~3rF;:EET F!' .. ODDlIJ I DTH C FEE"!") ..... 1. 1 . 8!5 ;"'"1 :"'l""1 Cj II "j .1::' FLOW VELOCITYCFEET!SEC.) = 2.93 DEPTH*VELOCITY = 1.06 FLOW PROCESS FROM NODE 91 • 00 TO \,\IODE:: ':1'7. 00 :W CDDE :::: .................. _ ......................................................... _ ....... _ ....................... _ "'_ ........ _ ........ _ ... _ ... _ ............ __ .. __ ........... _ .......... "_ ._ •... ~ ..... 'M_ ..................................... _ ..................................................... ~ ... ~ ................ "_ .................... _ ..... ~ ... .. »»>COMPU'fE PIPEFLOW TRAVELTIME THRU SUBAREA«(< • ~=;~;;~~~~::~~~~~;~~=;;~~!~~~~!~~;.~:~;:::~~~=;~;~~;==,'===~======"========""== I PIPEFLOW VELOCITYCFEET!SEC.) = 9.5 UPSTREAM NODE ELEVATION =277.00 DOWNSTREAM NODE ELEVATION = 268.00 FLOWlENGTHCFEET) = 300.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES - 1 PIPEFLOW THRU SUBAREACCFS) -8.92 TF':(f ".iEL.. T H'IE 0"1 11\1.):::: •. ~)2 TC an t\I.) ::: U!·. :::::0 **************************************************************************** FLOW PROCESS FROM NODE 7:;~ ,,00 TO I'-.IDDE:: ....... -............... -............................................ _ ........................ -.. -............................................. _ ..... -........ -.......... "-........ -................................................ -..... !"" ..................... '·1" .................. -.. -......................................................... -..... --~.- »»>RATIONnL METHOD INITIAL SUBAREA ANALYSIS««< =====~=====~=~============================================================~= t;:;DIL. CL{·~IF:lnIFIC{::lTICJt···.1 IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF CDEFFICIENT = .5500 INITIAL SUBAREA FLDW-LENGTHCFEET) -100.00 UPSTREAM ELEVATION = 294.00 DOWNSTREAM ELEVATION = ELEVATION DIF~ERENCE = ~:2 II (1() I...JRB(.-;t···~ EI....!D{·~PE{:'I D'v'EH!....(.:~lt\ID T I VIE OF FL .. UI/ .. J (t';j I !\IUTES) ..... E" 2C;)C? 10 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.420 SUBAREA RUNOFF(CFS) -.38 TOTAL AREA(ACRES) = .20 TOTAL RUNO~F(CFS) -.38 *****~********************************************************************** FLOW PROCESS FROM NODE '7'4.00 IS CDDE ::: -------------------------------------~-------------------~------------------ »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ~::: ;::::::::: .:::: :::-: -:::: :-.::::::::::::: ::::::::: ::::: :::: :.:::: ::::::::::: :-.::: :::: ::::;:::::::::::::::::: :::::::::::::::::".: ::::-=.-::: :-.::: ::::::::: ::-.!::::=:.":: .::::: ::::: =:::::::::.::::::: ::. .. .:::::::::! :;::::::: :::::::.::: :::::::::::::::. ::::::;: :!:-.!:::: :::::-:::-:.:.::: :::: ::::: :".::::::: :::;: :-.:.~:::: ::::: =.: ::::::;:: ::'::::::: :::::.::::::::;: ::-:: :;:-.; UPSTREAM ELEVATION = DOWNSTREAM ELEVATION = STREEl HALFWIDTH(FEET) = 28.00 STREET CROSSFALlCDECIMAl) -.• 0200 SPECIFIED NUMBER OF HAlFSTREETS CARRYING RUNOFF = 2 **rRAVElTIME COMPUTED USING MEAN FLDW(CFS) -4.89 STREET FLDWDEPTH(FEET) = .28 1··I()L..FE)Tr~~EET FL.c)Dn~',) I D'TH (F:'EET) :::: 7' • "7:1. , AVERAGE FLOW VELOCITY(FEET/SEC.) -3.43 PRODUCT OF DEPTH&VELOCITY = STREET FLOW TRAVELTIME(MIN) = 4.37 1.2,,67 • I 10 YEAR RAINFALL INTENSITY(INCH/HoUR) = 2.603 SO I LCL..m3~:3 I F I C(')T I C)I"\1 IS "D II SINGLE FAMILY DEVELOPMENT RUNoF~ COEFFICIENT = .5500 SU~AREA AREACACRES) = 6.40 SUBAREA RUNOFFCCFS) - SUMMED AREACACRES) = 6.60 TOTAL RUNOFFCCFS) - END OF SUB(¥':;:EA !:3TI::;:EETFl...O\JJ H'y'DI::;:{~UL I CS: 9. ~:i':"I· DEPTHCFEET) = .35 HALFSTREET FLOODWIDTH(FEET) -11.02 FLOW VELOCITYCFEET/SEC.) = 3.58 DEPTH*VELOCITY = 1.24 FLOW PROCESS FROM NODE '14" 00 'TO hlODE --------------_._--------------------------------------------.-----~---------~ >:>:> > >CDI~IPUTE PI PE::F:LOI;.) ··rI:~~(.:l\iELT I IvlE THFU.J SUBARE(')< < <: -::: <: »»>USING USER-SPECIFIED PIPESIZE««< :::: :::::::::! :::t::!! ::::: :::::.':::: ::::: ::::: ::::: :::::. ::::: ::::: ::::: ::::: ::::: ::::: ::::'::::': :::: ::".::::~:::::::::: ::-.:: :::: =:: ::; i'::: ::::: ::::: ::::: :::: ::::: ::. .. .: ::-.:: :::.": ::::::-.::.::::::::: =.: ::::::::: ::-.: ::::.:::::::::: ::::.:::::: :::: :::: ::.:: :::: !:.::::::::::::::::::".:!: :::::::::: :::='::::::::: :.:= ::::; :::::::: =.-: ::::: ;::;: :::: :::::::::: ::::: DEPTH OF FLOW IN 36.0 INCH PIPE IS 8.4 INCHES PIPEFLOW VELOCITYCFEET/SEC.) = 7,,6 UPSTREAM NODE ELEVATION = 269.00 DOWNSTREAM NODE ELEVATION = 268.0C FLOWLENGTHCFEET) = 60.00 MANNIN8S N = .013 GIVEN PIPE DIAMETERCINCH) = 36.00 NUMBER OF PIPES -.1 P IPEFl .. CH'J THr.;:u f.3UF.h~r"\E{:l (CFS) .. -9. ~:i!.~ TRAVEL TIMECMIN.) = .1~ TCCMIN.) = 12.80 **************************************************************************** FLOW PROCESS FROM NODE '7'4. 00 TO l'mDE '::1'7. 00 I S CODE :::0 »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< =========:==========================~===========:=~========================~ 10 YEP,F: p{~rNr::-(::il....L II\!·rr:.:I\I::~IT··-{ C INCI···llHDUI::::) ::::: 2. ~.s8b ~m I 1.... CLJ1t3~3 X F I c{.rr I en ... 1 I SliD" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUB?".\RE{·) (""~F;:E{l «(.1cr:~Ef:n ..... 6. ~50 SUB{·~RE{~ F;~Ln·.!()FF·( cr::'G) ..... f.~. ':."f6 TOTAL AREACACRES) -12.90 TOTAL RUNOFFCCFS) -18.50 TC (1"'1 I t'·.I) oc:: 1. ;;::. E.:O ************************************************************~*************** FLOW PROCESS FROM NODE 97. (H) TD hlDDE ElB. 00 I S CODE :0-:: --------------------------------------------_._--------------------~--------- »»>COMrUTE PIPEFLOW TRAVELTIME THRU SUBAREA««<: :>:>:> :> >Uf.;; I b!f::'j I.Jf3EF("···!3F'EC I F I ED F'I PEE; I Z [<: <: <: <: < ::::=::::: :-.:: :::: :::= ::.::::: :::::::: ::::: :::: :::: ::::: ::::: :::: ::: ::::::::::::::::::: :::::::::!:::::: ::: ::::: ::::::::::::; ::: !.":::. ::::: ::. .. ,:::.: ::::! ::::; :::: ::::: :::-.: :,:::: ::: ::: ::::: :::: :::: :. .. ..:: ::::: ::-.: :::: :-.::: ::: :::::-::::: ::::: ::::: ::~ :::::::: :::: ::::: ::::: ::::: ::::: :~ :::: ::::: ::;:: :::: ::::: :::: :::: :;:: ::::: = ::::: DEPTH OF FLOW IN 36.0 INCH PIPE IS PIPEFL..OW VELOCITYCFEET/SEC.) = 15.4 UPSTREAM NODE ELEVATION = 268.00 DOWNSTREAM NODE ELEVATION = 243.00 FLCH'H. .. El·.IGTH C FEET) ::::: :':;'~5i)" 00 t~I(,W,It"··.1 I '\!E;)!::l I'c~ "::: • 01::::' GIVEN PIPE DIAMETER(INCH) = 36.00 NUMBER DF PIPES - PI PEFL.()IJ·J TI"!F(U ~3UB(.:iHEn (CF:~::;) ..... :r. 8" ~::.iO TH(.)\·'EL T 11'1E (1"1 IN.) :::0 *************************************!.~*****************~*************~***** , • I :> >:>:> :>DE~:3 I GI\I{iTE I NDEF'ENDEI'···.!T STF:E{~!I·fl FDF;: CDI\IFL.I..JENCE:< -< <: -< <: ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE~ TIME OF CONCENTRATION(MINUTES) ~ 13.18 r~(:i I I'IF" PIL.L.. I hITEI\IFi I T\' (I 1\ICH" ,I HCJUF~) ::~ :,;:: • !.S4 TOTAL STREAM ~RE~ (ACRES) = 12.90 TOT (:iL.. ElTRE(.\lvl RUNDF·F:-(eFa) f.~T CDI\IFL.I...JE:I',ICE =: 18 u 5() F"L..OW PROCESS FROM NODE 9~5. 00 TO NODE ('1'e) II ()() IS C:(] [) E: ::: ---------------------------------------------------------------------------- »»>RATIONAL.. METHOD INITIAL.. SUBAREA ANAL..YSIS««< =============~===========================~===============~=====~============ BD II... CL.AE~S I F I C:(':~T I ON IS" D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FL..DW-L..ENGTH(FEET) -100.00 UPSTREAM ELEVATION = 280.00 DOWNSTREAM ELEVATION = 278.00 ELEVATION DIFFERENCE = 2.00 ur~B(..:l!\l SUE:(.:1F~r~~(.:1 Dl·/EJ~Lm{D T I !'iE OF FLm'.J (1·'1 I !\IUTES) .... 10 Y~AR RAINFALL INTENSITY(INCH!HOUR) = 3.420 SUBAREA RUNOFF (CFS) - TOTAL AREA(ACRES) = .20 TOTAL RUNOFF(C~S) - ************************************************************~*************** FLOW PROCESS FROM NODE »»>COMPUTE STREETFL..OW TRAVEL·rIME THRW SUBAREA«<-« :;::, ::::; ::::: ::-.:: :::: ::::::::~ :::;: ::::: !!::: :::: :::: ::::: := :'.:: =.:::::::::: ::::: :-.:::::::: ::= ::::::::: :::; ::::: ::::: ::::: ::::: == :.::: :-.::: ::::: ::::: :::: :-.:::::::: ::::: ::::: ::: :::::::::::::: ;::::::::: ::-.:::::: :-.::: ::::: ::::: ::::::::;: ::::: :.::: ::::::: ::::: ::::: ::::: ::::: ::.-= ::::.:-::::: ::::: :.::::::: ::::: =::: ::::: !::-.:::::: ::::::: ::::: == ::::: UPSTREAM ELEVATION = 278.00 DOWNSTREAM ELEVATION = 244.00 STREET lENGTH (FEET) = 500.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTHCFEET) = 28.00 STREET CROSSFALLCDECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREE1·S CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -3.01 FiTREET FL..OWDEPTH(FEET) = .21 HALFSTREET FLOODWIDTHCFEET) = 4.40 AVERAGE FL..OW VELDCITY(FEET/SEC.) -4.83 PRODUCT OF DEPTH&VELOCITY = 1.03 STREETFL..OW TRAVEL..TIMECMIN) ~ 1.73 TC(MINI ~ 10.03 10 YEAR RAINFALL INTENSITYCINCH/HOUR) = 3.028 E;C) I!.... CL..(i~3S I r: I CAT I ON I l:3 "D" E; I t\IGL.E F (WI I L Y [lEVEl.... DPt~1E]··IT Fi:Uhlor·p [OEFF I C lENT :=: • ~:;soo SUBAREA AREACACRES) = 3.20 SUBAREA RUNOFFCCFS) -5.33 SUMMED AREACACRES) = 3.40 TOTAL RUNOFF (CFS) -5.71 END OF SUBAREA STREETFLOW HYDRAULICS~ DEPTHCFEET) = .26 HALPSTREET FLOODWIDTHCFEET) -6.88 FLOW VEL..OCITY(FEET/SEC.) = 4.:32 DEPTH*VEL..OCITY = 1.27 9:3.00 TO NODE BEl" 00 ,1 S com::. := »>:»COMPUTE F'IPEFLDW TRAVEL..TIME THRU SUBAREA<-«« »»>USING USER-SP~CIFIED PIPESIZE<<:<:<< ============================================================================ DEPTH OF FLOW IN 18.0 INCH PIPE IS PIPEFL..OW VELOCITYCFEET/SEC.) = 9.5 UPSTREAM NODE ELEVATION = 245.00 6."7 ·INCHEt) DOWNSTREAM NODE EL..EVATION = 243.00 Fl.n!:'JI....F~PlGTH C FEE T) =.: ;30. 0(1 I'·'!(.)!',!N J.1'!(3~:1 t--!::::: • (J 1. ::::; DI'v'E!··.! PIPE DUil~1ETER (H·.!CH). "::: HL ()O !···HJI~IDEF~ DF F'JPES .. -:1. TRAVEL TIME(MIN.) = nq II .,' I TC(MIN.) -10.11 **************************************************************************~~* FL..O!?! PFmCEGf:3 Fnm'''l blODE 98. 00 'I'D "'iunE B:3. 00 I ~3 CDIYE. "': :L , .'" _.; ~~: ~: ~;: ~;:~; ~ ~~ ~~. ;~ ~;:; ~; ~i ~ .... ~~. ~~~; ~ ;~~ ;;.;.~~; ~; ~~;~; .... ~ ~~ ~~ ~~ ~;~ .. -;~ ;~~;~.-~;~;;~ ~~ ;,~ ;:~ ~~;~~;~;. :;;~ :;~ :;~ :;~. :~~ ..... , .... --_ ..... --"". _ .... " ...... -.-~. -_. ---.. --... -_ .. -... . »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< :::: ::::: :::: :=."! :::.:::: =:: :;::: ::::: ::::: ::::: ::::: :::: ::::: :!:-.: :::: ::::. :::: ::::::::: :::: ::::: ::::::::::::: :::: ::::: ::::: ;-.:.::::: :::: ::::: ::::.::!::::::::::: ::::: :.::: =: ::::: ::::: ::::::::: :::: ::::: :::: :::: :::.:::::' :'.::: :::: ::::: ::::: :::::::~ :::= ::::: :::'.: ::::: ::!: ::::.::::: :::-.::::: ::::; ::;:: ::::: :::-.: :::::. ::::: ::::: ::'.:: ::::: :::::::::. ::::: CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION (MINUTES) = 10.11 nAII\IF(':)U .. Ii···ITENE;ITY (It···.ICH. /\-·ICHJP) '''' :~:;. 01 TOTAL STREAM AREA (ACRES) = 3.40 TOTAL STREAM RUNoFF(CFS) AT CONFLUENCE = 5.71 CDI\IFL.I...JEI\ICE I I\IF·DF~I··:I('~ T I ON: STF;:E~m"1 Fn . .It'··IOFF T I IvlE I NTr::::Hf,; I TY NUI"1E::EJ~: (CFS) (\"1HJ .. )( II'-ICH/HDUR) ---------------------------------------------------------------------------- :1. ''')0 .t: .. I .. 86 :1.2 . 40 :2 . lJ3<~'J :2~ 1 El .. 50 1 ~::: u .I. 8 "-, 01:: ... ~5~::f3 :3 t:::' '''./ . '7 1 10 . 1 :1. "=!' '._, n 0 1 :I. RAINFALL-INTENSITY-nATIO CONFLUENCE FonMULA USED FOR 3 STREA~IS \"'{.:lR I DUE COhIFU...JEI'IGED Fi:UI\IClFl::-V('~LUES IqF(E ?o"1S FDLLm',)S r. 52 .. 65 52.D2 47.48 COI·'1PUTE.D (~DI'·.IFI.. .. l...!ENcr:::: EBT II'1(=iTEf3 (:lRE !~~:; FDI.. .. L..DIAS:: nur,IDF'F ([FE::) ::-" ~.'.i2 u 6~:5 T I 1'1E (to'! J: l\jl"')T[:::S) .". 12, ·40:::: TOTAL AREA (ACRES) = • ~.~. -:~.~. ~ti' "*. ~:t. "* .. :ri .. *. "~. -)~ .. :~. ~r~ 7i' Mj{ .• :~. ~~ • .;~. i"i-i~ ,;* '1~. ~~ .. *. -:':.: .* . .:ft.' ~~. ~\i' -t~. ,;~, * -:~. '::io -j~' .~~. ,:~. ~t -:~ . .;~~. ~ -1~' ~~. ,:i~. -i'~ * ~~. ~rf -¥.. ~";t. ~}~ •. :~~. ~}~. ~.-;~. ~~. ~ . .;~. '* ~~ .~~~. -:~. ~.~ .. :~ . .!)i· '~F Nk .:\~. -j~. ~l~' ~ti~ .;~ .. :i{. ~~ .. :~ .. ~. FLOW PROCESS FROM NODE 100.00 TO NODE 101.00 IS CODE = 2 I ..... ,,_. M_, .......... N." ..... N'" .............. _ ..... H ...... _oo. _." ..... _ ....................... _ ........ __ ............. " _ .................... _ ......................... , ~ .. , ........ ~ •..... _ .................. _Oo' _ ... _ ....................... _00, ......................... _ ............. "_' _ ........ _ ........................... : _ ............. .; ....... . »»>RATIONAL METHOD INtTIAL SUBAREA ANALYSIE««< ===================================================================~======== SOIL CL{:lE3IFIC{~TIohl 1::3 "0" RURAL DEVELOPMENT RUNOFF COEFFICIENT = .4500 NATURAL WATERSHED NOMOGRAPH TIME OF CONCENTRATION ~'J I TH :t ()-··t·"1 I I\IU·fEf.3 {~DDED ::::: :l.~:;. ·'~I·O:? (!'~I I NUTEt:::) INITIAL SUBAREA FLDW-LENGTHCFEET) -900.00 UPSTREAM ELEVATION = 425.00 DOWNSTREAM ELEVATION = 330.00 ELEVATION DIFFERENCE = 95.00 10 YE{.:ln R('~IhlF('~LL II\ITENBIT\( (11\ICHll·jDUI:;:) ... 2. !.:500 SUBAREA RUNOFF (CFS) -6.30 TOTAL AREA (ACREB) = 5.60 TOTAL RUNoFFCCFS) - **************************************************************************** FLOW PROCESS FROM NODE 101.00 TD NODE 1 o::~;. 00 1: (:. CODE ,::: >:> > > >CDlvIPU'fE P I F'I:;:~FL...D\.!J TF~{)\""ELT I ,"iF TI"!nU ~::;UB{~PE("1< < <: <: < »»>USING USEn-SPECIFIED PIPESIZE««< ================:=========================================================== DEPTH OF FLOv·J I t\1 18. (1 I blG·1 P I FE I t3 B. b I t'!CHE~3 PIPEFLOW VELOCITY(FEET/SEC.) = 7.6 UPSTREAM NODE ELEVATION = DOWNSTREAM NODE ELEVATIDN = FLDW~ENGTH(PEET~ = 100.00 GIVEN PIPE DIAMETER(INCH) = PIPEFLOW THRU SUBAREA(CFS) - TRAVEL TIME(MIN.) = .22 MANNINGS N = .013 18.00 NUMBER D~ PIPEB - TC(MIN.) = 13.71 1 , • I FLOW PROCESS FROM NODE 10:l..00 TO NDDF .. 10:3 .. (H) I ~3 C:;CmE ::: ::::: :::: ::::: ::::: ::::: ::::::::: :::: ::::: -::: ::::: ::::::::: ::::: ::::: ::::: :::::~:: ::::: ::::: ::'::: ::::: ::::: ::::: ::::: ::::: ::::: :::.: ::::: :~:: ::::: :::= ::::: ::::: ::::: ::::. ::::: :::: ~::: ::::: :::: :::: :::::::::: ::::: ::::: .::::. ::::: :::-.: ::::: ::: :::;: ::::: :::: ::;;; ::::: ::::: :::-.: ::::: ::::: ::::: :::: ::::: ::::: :;;:; :::: ::::: =,:: ::::; ::::: ::::: ::::: :::: :.':: :=-::::. CC)t'·.IFLUEr'·.iCE VP!I. .. UE~:; L.lEED FDr~ I t--.IDE:::F'EI···~DEt···.1 r STPE:(.~lf'I :I. (:.inE: TIME OF CONCENTRATION (MINUTES) = 13.71 PAII ... IF{:.'II....L. II\ITEI\jBITY (II\ICI .. ·I. /HClL!F;:) "'" 2. Lj,",[ TOTAL STREAM AREA (ACRES) = 5.60 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 6.30 **************************************************************************** FLOW PRDCESS FROM NODE 10?OO TO NODE .I. 03 .. 00 I f.:~; CODE:: ::::: --------------------------------------------------------------------------~- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< =========================================================~================== GO I I.... CL.PIE'f, I F I CnT I 01\1 I f3 "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 N('~TL.lH(..'iL. ~IjPITERGI"IED t'IDt"IDr:)n(..'~IPH T I t"1E OF CDI·:'·.ICENTf~('·~T I ON WITH lO-MINUTES ADDED = 15.80(MINUTES) INITIAL SUBAREA FLOW-~ENGTH(FEET) -700.00 UPSTREAM ELEVATION = 340.00 DOWNSTREAM ELEVATION = 328.00 ELEVA1ION DIFFERENCE = 12.00 10 YEAR RAINFALL INTENSITY(INCH/HOUR) -2.258 SUBAREA RUNOFF (CFS) -2.24 'rOT f..K, t,nE(..'.) UiCF~EE3) ::::: 1. • F:O TOT (~L.. FUJNClFF (CFG) ..... 2 h :,? fl· ************************************************************************~*** FLClI!·J PF,:DCEE,S F F=I: [11'1 t---IODE 1. 02. 00 TO I'<lDDE 1. o~.::.. 00 IS CCIDE ::::: :> >:>:> :>DEf.3 I C3t\If.-1TE:: I NDEPE:I\!DE:I\!T t:;T[ .. ?F.:::(.:i!··:1 FDP CCJ~·.IFL.UEt···!CE< < -::: -:::-::: »»>AND COMPUTE VARIOUS CONFLUENCED S11~EAM VALDES««-::: ::::: ::::! ::::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: ::--= ::-.:: :::: ::::: :::: ::::: ;:::: ::::: ::::: ::::: :::: ::::: ::::: ;:::: ::::: ::: ~:::: :::.: :::: :::: :::.:: :~:: ::::: ::::: ::.:::::.::::::: ::::: ::::: ::.::: ::::: :-.:: =:.:: :::;: ::::: :'::: ::::: ::::; :::: ::::: ::::: ::::: ::::: ::::: :::: ::::: ::::: !!;-.! :::::":::.': ::::: ::::: ::::: :::-.! ::::: ::::: ::::: ::::: ;::::-.::::: ::::: ::::: :::: :::: ::::: ::::: CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 15.80 RtllNF{H ... L I!\lTEI'~~3ITY (INCH .. /HDUFU ":" 2 .. 26 TOTAL STREAM AREA (ACRES) = 1.80 TCrH~L.. ;::rrnE(~l"1 Rut'.!ClFF (CF~3) (,1''1'' CDI\jFU..JE},ICE: "'~, 2 .. 24 CONFLUENCE INFORMATIONu STREAM RUNOFF TIME INTENSITY r--~Ut/!Dr::J:;: (CFs) <t'!I hi.) ( I hle!"11 HDL..!Fn :l 6. 3() 1 3 . 71 :;;: .. 474 :2 r-, .t::' . 24 15 . f:30 :'~:~ . :~;~!Sf:::; RAINFALL-INTENSITY-RATIO CONFLDENCE FORMULA USED FOR 2 STREAMS 'v'(iR I nus CDI\IF1 .. UEt\ICED nUhlDF'F V(~I..)..JES I~~I::::E {:~f:3 FClL.LCH,m ~ CDi"lPUTED CClNFL..!.JEl'-·JCE EE;T I t'/!I0,TES (..:,nE (iE FDL.L.Cll!·,jE-l ~ RUNDFF(CFS) = 8 .. 34 TIME(MINUTES) -13.714 TOTAL AREACACRES) = 7.40 ****~~*********************************************************************** FLOW PROCESS FROM NODE 1 O~::.. 00 'I'D I\IODE 104 .. 00 1:3 CODE ::::: :> > :> > :>CCJ!"/IPUTE PI F'EFUJi,J 'n~(=i\.JELT I 1·1E THF':I..J ~:3UB(.:lFi:E{~< <: -::: -::: <: :>:> >') >UE; I NC3 UE)ER""'GF'EC I F I ED PI PEf3 I ZE<: <: <: <: <: :::-.::': =:::::.::::::: == :::.~= ::.:: ::::::::: ::-.::::::::.::::::::::;::::::: :,.::: ::::::::-.! :::::::::.:::: !:::::-::: == :::::: ::::: ::::: :::::: ::::; :::: :::::::::: :::::::::::::::::::::.:::-.::::::: ::::: ::::::::::::: ::::: ::::: :::::::::::;:::::;: ::::: :::: :::::::::::::: :::::. :::: :::::::.:: :::: :::: :::: :::: ::::: :::':::!' .... .!::::: ::::: ::::: ::::::.= ::::: DEPTH OF FL.D!!) IN :;::4. <) INCH PIPE I f~ B" 0 I hICHr::.S.3 ~IrEFLOW VELOC1TY(FEET/$EC.) ~ 9.1 UPSTREAM NUDE EL.EVATIDN = 328.00 , • I FLDWLENGTH(FEET) = 750.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES - 1 PIPEFLOW THRU SUBAREA(CFS) -8.34 TRAVEL TIME(MIN.) = 1.37 TCCMIN.) = 15.08 **************************************************************************** FLOW PROCESS FROM NODE 1 O~~" 00 TO !\IODE :I. .......... _ ............. _'" .......... w,_, _ ........... __ ......... , .. _ ........... _0 .............. _ ....... _ ..... __ .. 0 .... _ .......................... _ .. , .... _ ............ , _ ....... , ......... , ................................................................ _ ........ .: ........ _ .... _ .......... _ •• _ ................... _ ............. _H' _ •• _ ... _0_ .... " =~=:===~==========================================~=~===~====~:============= CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CDNCENTRATIONCMINUTES) = 15.08 RAINFALL INTENSITY (INCH./HOUR) = 2.33 TOTAL STREAM AREA (ACRES) = 7.40 T01" (.·~Il f.{TT~[iJ1t·1 RUNOFF (CF~3) (1'1' COhIF::-UJEI\!C:E: :" E3 " ~s4 **************************************************************************** FLOW PROCESS FROM NDD~ l O~). 00 TO NODE 106. 00 :r £-3 CODE ;::: »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ::::: ::::::::: :::-.: :::.": ::::: ::::: :;":! ::::: ::::: ::::: ::::: ::::: ::::::!:: :::;: ::::: ::::: :.-.: ::."!! :::: :::::.:::-.: ::::: :::: :::;: :::!::::: :;.::: ::::: :::: ::::: :::: ::~:::::: :-.::: :::: .~.:! :::~ :::::. '':':: :::: :::.:. ::::: ::::: ::: :-=. ::: :::: ':'.:: ;::: ::,':; :::=-::::: ::.':.: ::: :".:-': ::-.: :::::.::::: :~:: ::-.:: ::~.: :::: :::: :~::. :::: :::: :-.:: = ::::: ::.:: ::~ :::: :::: ::::: SOIL CL..(.'~~:m I F ICi::~TID!'-'\I S !t [) II SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-lENGTH (FEET) -100.00 UPSTREAM ELEVATION = 312.00 DOWNSTREAM ELEVATION = 310,,00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FlDW(MINUTES) - 10 YEAR RAINFAll INTENSITY(INCH/HOUR) = 3.420 SUBAREA RUNDFFCCFS) - TOTAL AREA(ACRES) = .20 TOTAL RUNOFFCCFS) - **************************************************************************** FLOW PROCESS FROM NODE 106.00 TO NODE 107. 00 I f.3 com:: :": ---_._--------------------------------------------------------------------~-- »»>COMPUTE STREETFLDW TRAVELTIME THRU SUBAREA««< =============================~~=================~=================~========= UPSTREAM ELEVATION = 310.00 DOWNSTREAM ELEVATION = j07.00 STREET lENGTHCFEET) = 900.00 CURB HEIGTHCINCHES) = 6. f.:;TREET ~·I{:')L .. F~\J I DTH (FEE:T) :::: ~,7::8. 00 t;;Tr.:;:E:ET CF:OEl t'3F {41.. .. 1.... (DEC I H(::lL) ..... .0:,200 SPECIFIED NUMBER OF HALF STREETS CARRYING RUNOF~ = 2 **TRAVELTIME COMPUTED Uf.3ING MEAN FLOW(CFS) -4.57 STREET FLOWDEPTHCFEET) = .36 l-"lnl...FEHPEET FLOOD'.'! I DTI-·! (FEE.T):::. 11 n B~3 AVERAGE FLOW VElOCITYCFEET/SEC.) = 1.50 PRODUCT OF DEPTH&VELOCITY = STREETFLOW TRAVEL~IME(MIN) ~ 9.99 TCCMIN) = 18.29 10 YEAR RAINFALL INTENSITYCINCH/HOUR) = 2.055 SO Il.. CL()SEl I F I Cf.yr Ie]l\! I S II II II ~:; INGLE F f:1t"1 I L. Y DEVEL.DPt'IEI\I'T' m.JNClFF CDEFF I C lENT :,,' ,,5500 SUBAREA AREA (ACRES) = 7.20 SUBAREA RUNDFF(CFS) - SUMMED AREA (ACRES) = 7.40 TOTAL RUNOFFCCFS) - END OF SUBAREA STREETFLOW HYDRAULICS~ Buill- E:" ~5 J. DEPTH(FEET) = .43 HALF STREET FLOODWIDTH(FEET) -15.16 Fl..Oll,1 VEL.DC I TOy' (FEET !~3EC.) :07. :!. • '76 DEF·TI-I~fVE:L.DC I T'Y :::: '''JL n I a.. •. : ************************************************************************~*** FLOW PROCESS FROM NODE :1.04.00 IB CDDE :::: , • I ==~========:=========~==================~=========~~================~=====~=~= DEPTH OF r~_ow IN 18.0 INCH PIPE IS 10.9 INCHES PIPEFLOW VELOCITY~FEET;SEC.) = 7.6 UPSTREAM NODE ELEVATION = 307.00 DOWNSTREAM NODE ELEVATION: 306.00 FLOWLENGTH(FEET) = 60.00 MANNINGS N = .013 GIVEN PIPE DIAMETER CINCH) = 18.00 NUMBER OF PIPES - PIPEFLOW THRU 8UBAREACCF8) -8.51 TRAVEL TIME(MIN.) = .13 TCCMIN.) = 18.42 :I. ********~************************************************************~****** FLOW PROCESS FROM NODE 107.00 TD NODE:. :1.0·4. 00 I G CODE ::::: :I. ----------------------------------------------------------------------------»»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< :::: ::::: ::::: ::'-": :::':: :::;:::::: ::::: :::.:: ::::: ::::: :::-.:::::: :::::.::::::.:::: ::::: :::!~:::: ::::: ::::: ::::. :::::::::::.:::: :::.:: :::.-: ::::::::::::: ::;:::::::::::: :::::::::::.-:::::::::::: ::::: ::::::::::::::: ::::::::: ::::: ::::-!"':::::::: :::: :::::. ::::: :::::::: ::::: :::: :::: :N-: :::::.:::::::::: :, .. .:: :::::::::::: ::::: ::::: ::::: ::::: ::;:: ::::: ::::" ::::: ::::: ::::: =-:-.::: CUI\IFl...UEhICE V(.11. .. UE~3 UBED FDP I NDf:'::PEt'·.IDEI\IT STf~:Ef:lt'!1 2 nnE:: T I ,"lE OF CCJl\lCEJ·rrn{~ T I C:iI\l (1"1 I NUT!:::::) ::::: 1 El. l:L;~ RAINFALL INTENSITY (INC~.!HOUR) = 2.05 TDTAL STREAM AREA (ACRES) = 7.40 TOTAL STREAM PUN OFF (CFS) AT CONFLUENCE = 8.51 **************************************************************************** 10El.OO TO NODE .l (lct • 00 I f3 CODE :"': 2 ---------------------------------------------------------------------------~ »»>RATIONAL METHDD INITIAL BUBAREA ANALYSIS««< =======================================================~=======~============ ~::;;fJIL.. Cl...flSEHF I C:PIT I Dt···1 IS "Oil SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA Fl...DW-LENGTHCFEET) -100.00 UPSTREAM ELEVATION = 313.00 nm'Jt\I(3'rRE(1~!1 EI....EWYf I ON :::: ~~:'11 . 00 ELEVA1ION DIFFERENCE = UPB(''li'·~ E)UE:(~nE:{\ CJ'v'EnL .. I11\.1D T I HE OF FLDI},! (I'll t\IUTE~~) .... til. ~;;::S":::;' 10 YEAR RAINFALL INTENSITYCINCH/HOUR) = 3.420 SUBAREA RUNOFFCCFS) -.38 TOTAL AREACACRES) = .20 TOTAL RUNOFF (CFS) - *********~***********~~***************************************************** FLOW PROCESS FROM NODE 10'7.00 TO NODE 104.00 IB CODE ::::: -------------------------------------------------------------------------~-- »»>COMPUTE STREET FLOW TPAVElTIME THRU SUBAREA««< ==========================================================~~:=============== UP~3TF~E{1r'1 ELE\.i{:~T I Ol .... ! :::~ :3; 11 n 00 DDL·,JI\.1~3TRE(:il·~1 ELEI..)(lT I llh! ,"" :::::06 n 00 STREET LENGTH (FEET) = 550.00 CURB HEIGTHCINCHEG) = 6. STF~EET 1·1 (:il.. .. F llJ I DTH (FEET) :::: 28 n 00 FiTHEl::T CRm~~:;I:::·(il.. .. L (DEC II'1(:iL) .... .0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLDW(CFS) -1.17 STREET FLDWDEPTH(FEET) = .2j ! .. Wd ... FSTF:E:ET FL..OClDVJ I )'1"1-.. 1 (FEET) :::~ 5. 2~::; AVERAGE FLOW VELOCITY(FEET/SEC.) ~ 1~50 PRODUCT OF DEPTH&V~l...OCITY = .35 STF~EElFI..J:n··J TFUV/ELT I IvlE (1"''11 1'.1) :::: ,b .. 11 TC (t'H 1\1) ::::: :I. 4.41. 10 YEPd:;: f~{in.IF(.:)L..L INTEh!BITY C H'K~H/HOUFn ::::: :2:n ~::'96 (::;0 I 1.. .. CL..PIG~:; I F I CP1T I DI\I I ~3 "I)" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAPEA AREACACRES) = 1.20 SUBAREA RUNOFF (CFS) -1.58 SU~MED AREA(ACRES) = 1 .. 40 ToTAL RUNOFF(CFS) = 1.'76 EI\ID OF nLn:::f.ir·~:E{') ElTREETFI.. .. (J[,tJ HYDr·~{)I....II. ... I e.S: rn;PTH(FEET) = .26 HALFSTREET FLOODWIDTH(FEET) = 6.88 FLOW VELOCITY(FEET!SEC.) -1.65 DEPTH7~ VEL .. DC I TY :::: *************************4************************************************** FLOW PROCESS FROM NODE .......... ~ ........ ~ ... N ••• ~ •••.......... ~ ........ _ ..... , .......... 0. _H. _._ ••••• _. __ ............... _ ...... ,._ M_, "0,_ .... , _ ......................................... _ •• , ..... MOO ........... _ ...... _ .............................................. _ •• ",'0 ••••• M" ........................ , ... M ................ --. _ ................ -...... , ........... .. ::..:>:>:> :>D!:::~:; I C3t··.!f.yrr:: 1!···.!DE:FEt\IDEt·..rr ~:rrHE:nt· .. 1 FDFi: CC!l···.IFL.I..JE'\\!~.:;E:<: <: <: <: <. »»:>AND COMPUTE VARIOUS CONFLUENCED STREAM VAL~ES««< , ::.:: ",,: ;~; ;;; ~~~ ~~;. ~:::~~~;, ~.~ ~ ~;~ ::~ ~!:: ~~~: ~:~~; ~ ~:~~ ~ ~;; ::~: ~~~ ~~ ;~~ :::::~; ~:~~; ~ ~:~ ;;~~ ;:::; ;,~; ~~ ~~.~~~::~ ~ ~~:;~ ~~ ~;.~ ::: ::::: :~;::~ :~~; ~~ ;,;~ ~~: :::" ,,::: =:: :::: ::::::,,: ::::: .::::.::::: ::::::= :=: ::::: :~~ ~:.::::=~":;= :::: == ::::: TIME OF CONCENTRATION (MINUTES) = 14.41 RAINFALL INTENSITY (INCH./HOUR) = 2.40 • I T01AL ~rREAM AREA (ACRES) = 1.40 ··'·CH (.:'il.. f.3THE{~t·;1 F~UNDFF (CFS) (~IT CClNFI .... UENCE ~::: :l • Cl'l-;, CONFLUENCE INFOHMArION~ STREAM RUNOFF TIME INTENSITY hH .. n·"lBEn (CF'S) (I'·i I hi.) (I I\~CI·-l / HDUR) -----------------------------------~-------------------------------------~-- :I. ~3 . ::::'4 :!. ~S " ()E; 2 . :~:;:2:(::) ~;;:': El 5 1 1. f:j ,1·2 1· ... 04~::i " " -=::: " -:" :i. 9<'::. 1 4 ..q. 1 .":: :::::Cj'{J .... 1 . . .~: .. " RAINFALL-iNTENSITY-RATIO CONFLUENCE FClRMULA USED FOR 3 STRE0MS VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOU_OWS: 17.73 17.52 17.32 COMPUTED CONFLUENCE· ESTIMATES ARE AS FOLLOWS~ RUNOFFCCFS) = 17.73 TIMECMINUTES) = 15.085 TOTAL AHEA(ACRES) = 16.20 ===============================~==========================================~= END OF RATIONAL METHOD ANALYSIS ~ I 50 -.Yc..c?R" , '. ". •• . n- .' , CITY OF CARLSBAD I . CARLSBAD HIGHLANDS HYDROLOGY STUDY 50-YEAR HYDROLOGY S.TUDY VI/.O. 270 -·-1·0 ..,. INTENSITY. -D~P-i\Ti.ES!GN CHART ;~~. _ ..... ~I-rIrr i (r.~]1Trtrr.mIl&h.1 H i"lti"lTrmi"'h"Ii.~-1 •. ,' .R.:~ lr.{i(rrHh~FR H-_. --.-----.--. ---~ ~~. ~ ~~:; 1:':~.t ,'1 Equation: I '::1 7.44 P O' -.645 Dlrectlons for Appl1catlon: ?.~·~b~:-.::'. . 1 . 6 1) From precipitation' flaps detennine 6 hr. and ( •. ~f'I~~~.. -: .... 111m I III Intensity (~n./Hr.)· 24 hr. amounts for the selected frequency. ~'N I'-}~~III '~I f'i :I ",. These maps are'prlntedin the County Hydrology 50 -t:!--[t:>~bJftl.1-0, I ~ ~). : I r 4{ :1~ :_ P 6 6 Hr. Precl.pl. tatl.ot:\ (In.) I 1·1an~a 1 (10, 50 Clnd 100 yr. maps included in the ~I '1. .N. I ~I, :, tRl~!: I,ll ~Il D _ 0 t' ('I') I Deslgn and Procedure Hanual). . I I· Kt Ii-I, 1 U~ I !-t'1 I., -ura loon p In. ~ ~~J.:~I·~mtHl';I;~i+R~~.~iffi i,iil: ; i ;nl~i illi d~'::J::' . i f.l:l.ri:!' rnF hIT i 2) Adjus~ 6 hr. pr~cipitation (if necessary) sci =ttl I l' I 'I (li ~~r-l'I}~' 1f II l'lli-'~:~' ':T:1,lir : t'[;l'! P::' that lt is \'Iitll1l1 the range of 45% to 65% of 30. '.~-*ll:i'-l,,:+f1I~lffi8~:.~, I~I' ~ t HI·I~!;:~~C1:~T:iil},.li·::I~!t the 24 hr •. precipitation. (Not nrrlicable .. ~. :1:, +il.,' i 1.lh'~~I~li +l~ Il'!~ ::r;;~ ~ I=!'::~·~ ·~lflEt. ~~LI·l.dU!1 to Desert) -.~ "'1' .lI 1' .. ~llIh&1' IINIT ,~II~ ._;.., .-'.' '::j-l;' dlll":~' r, en g :, J : -I' -(!.d hl.'~; It, !'ll JI·f\·.· '. II!: l!iittHlliffi~li~: ~ ·lrt:l" jiJ~'I~~ T~II ~ of the chart • .: ...... 1 .. 1 -'1 LiRi I q 1 It* II'N...!:I H~ ,i.j~r$!~ " ,~~1 ... !'J i-I ITI"j I! I j :; .. :; =~f:~t'+1·11'1:·lllilHII~~1·~1·11~:II.I"~I·~ll;;h~M'iif:.: . ..r.}1-.: 1 · ~~'~~!t! Ih1 :~;·;Il! ;r 14) Draw a 1irye through the point parallel to the (l) --,W"I'h-.t11.l 'I ~I:I !I!I'llillfl ;1'f..L!111:~'--'I~11 ~1I!IN"'i--t ~,. !~'i 1:;ll:':I,~. plotted l1nes. '"5 --1·1'1 ! I ~ If' 'l~; IIIldifS : I 1~1 N III~ I~ ,. '~~ 1: 1;1' ,~: 1. ...w.JJ-.l.I-i-,~!!.Ul!UIt8llj~i:: !\111i1+~I\I! ~i:!: •. 1 i! I' IIK)~!;,: ~>i'~!l ~ 5) This line is the intensity-duration curve for - 9 .-l~ ... .l';';_1 J-jfi_i;;-';i l..url:I"lliiil·j.t.S.!!ll'I·TI':":t~·l:r 1l1'11~':r' ~i I !.-I-·!!I~I!II;:I·.1!"l6s·0 ~ the location bei'ng analyzed • . ;:r., I • :I~ III1 lllTii ~1~lil:-W" 'r--' '1' • 11':: 'I: .5 -', :;. jS f:-.i~~ ~ i·.' .' J1" :-;'11.; .1' m I II. 11'i!'II~'I'i~J'-l"I' I.·I-j.' Lq~~·Gj:I::.1&5.0 g en ., .• :.." . ..... I ~ I~' I :!!I!~·.·i"..!',I!·:.nN:U··;·1·4S +J 6 !-., .... c..:. .. :: .. '. " • ~'111'" ····f·· .I L 1,1,,":11' :l' pp ca on orm. I: .' -r---;---: -.~. r .. t . '. ,'~:....' ·:-rt· ·L·t · '.; j:. ·3 5 n I. . §.. . :: . :. . -'.:". :1" ..' .1 ~ ~ ji,il'l ....... -~::!-'~Il t-llitli" I' :.q 1'1'; ::. ':4' '0 -= . Ali ti F • -'-="'1': ::':'. :'.':'" ....... 'i~'-~'l'I±:r! II·'~n:· 'n!! •. ~ 0) Selected Frequency' 50 yr • .s - --';--1 ..... '1 '. . . I-=-.....;~·· L .. 1. ,JJJf''-".1' I;;· 3 .. 0 VI • I-I :: .. " ........ ~'I -. .:-':::xdJI' ,':1 !l'lil':'i -1) P °4 i P A *p .&:...0 N* 1+ ... :: '.' ::-.: .. : '. '.:" ::·:r:.::LL..'{Lt I'LL t~.~:;. "2.5 6 = c;,.. n., 24= q.O, 6 = L-' /0' ~.-~ .. '~~t:.·!-.:.I·.I ~ .'. 'I.' ..... :.. N'::f.=:':·:·::~· trrui '111'IIIIII~tl P I::': '.'_';:. J .. : .:: ..... '. :::N .. ·-k-·~~l+ .I!. '1":lili':' . 24 .l ::-:. :'.:~''''-'~'-'''' " -..... I:=~~;-J::t-:.:.' : ~II:.! ~!tl 2.0 2) Ad' t d *p = e.4 i ._. ___ . __ ". W+r" ... l_. JUS e. 6 n. ::I-::::::t·: :.: :~'.: .':.' .' '.: --:. ::.' . i==f=t:f;. -~S~ .'. -t~t 'Mt '18 ~ ---f-' _:': :.-._: . "::' .. :. --'-1---" .-~~H,:"til1HI 1.5 .3) tc = "':1 ..... • . . -_ ....... II --- tTl.2 I--F--. -. - . . ..: .' '. ".~ --. -. . L[ i . g . :.... _.:.... --_ :l~: 1m 4) I = i n/hr. ><·ft I~ I II -]]1 Hllil.o ~ - --I--_ .. 1-1 •. -H _=-~~~~~~~~~~~!!"nm~HII *Not Applicable to Desert Region -f-. ---- ~ ·j...;.I--f-!-+-I-~+I-I-l+j+tH+H L 40 50' 1 ~.1 I-li-ttl-Ht,! t ~ .0 -lit t ttl I II ttllIlIll m tI1tt1H 1I11I1II11m~ID 15 20 30 Minutes Duration 2 . 3 4 5 ·6 Hours .,. APPENDIX XI IV-A-14 Revised 1/85 , • • ============================================================================ RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE Pef f::!t-fi,·!nCE:!: S(.·~II\I D I EGD COUNTY FLOUD CClN'I'RClL n I ~3Tr:~ I CT 1985,1981 HYDROLOGY MANUAL F, ::::: ::::::: :::::::~ ::::: :::::::::: ::::: ::::: :::: ::::: ::::: ::::: ::::: ::;:: ;:;::::::: ::::: == =:: :::::::::::::: ::::: :::: ::::: :::: ::::: ::::::::::::::: ::::: :::-: :::!:::::: :::: :-.::: ::::: ::::.: :::::::::: ::::: ::::: :.:::: :::: :::.:: :!::! ::::: ::::!;:::: ::::::::: ::::: ::::::'.:!! ::::: ::::: ::::: ::::: ::::: ::::: :::::::::: ::::: ::::: ::::: ::::: ::;:: :::::;:: ::::: :.:::: :::.:: ::::: ::::: «««««««««««««««««««»»»»»»»»»»»»»»»»»»» (C) Copyright 1982,1986 Advanced Engineering Software [AES] Especially prepared for: HUNSAKER & ASSDCIATES «««««««««««««««««««»»»»»»»»»»»»»»»»»»» **********DESCRIPTION OF RESULTS******************************************** * CARLSBAD HIGHLANDS -50 YEAR HYDROLOGY STUDY * .,,1· I,'J u O. 270·-1.1·1) **************************************************************************** -~----------------------------------------~---------~----------------------- USER SPECIFIED HYDROLOGY AND HYDRAULIC MClDEL INFORMATIONg 1985 SAN DIEGO MANUAL CRITtRIA USEn E.,r:'EC I F I ED STORI'1 EVENT ("lE{~n) .... 50" 00 6-HOUn DURATION PRECIPITATION (INCHES) = 2.400 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 E;PECIFIED PEHCEhlT OF (3Fa.~DIEhITS (DECIt'!{:1U TD USE FDFi: FHICTIClN SLOPE::!.' . B~5 «««««««««««««««««««»»»»»»»»»»»»»»»»»»» Advanced Engineering Software [AFS] t:;EFUt:V .. NCJ. 107::::;'01 VER. 3.4A RELEASE DATE: 4/22/86 «««««««««««««««««««»»»»»»»»»»»»»»»»»»» ***************************************************************************~ FLOW PROCESS FROM NODE 1.00 TO NODE 2.00 H3 CODE ::::: -------------------------------~-----------------------------------~--------»»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< " . ============================================================================ f:lfJ I L CL(')SS I F I C{YTI ON IS" D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) -100.00 UPSTREAM ELEVATION = 342.00 DOWNSTREAM ELEVATION = 340.00 ELEVATION DIFFEnENCE = 2.00 . Urm(')N ~:3UBAnEA OI}Enl...(')ND TInE OF FLClW (t'1 I NI..JTE~-3) ... 8. ?99 50 YEAn RAINFALL INTENSITY(INCH/HOUn) = 4.561 SUBAREA nUNOFF(CFS) -.50 TOTAL AnEA(ACRES) = 'J ~,~(, ~:!'('1 ~I ._. .,' ., ., , • • ===================================:================================~======= RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE Reference: SAN DIEGO COUNTY FLOOD CONTROL DISTRICT 1985,1981 HYDROLOGY MANUAL =======~====================================~~===============~==========~==~ «««««««««««««««««««»»»»»»»»»»»»»»»»»»» (C) Copyright 1982,1986 Advanced Engineering Software CAESJ Especially pr~pared for~ HUNSAKER & ASSOCIATES «««««««««««««««««««»»»»»»»»»»»»»»»»»~»> . ,*·**··)(·**-lHHi·,,* DESCH I PT I ON OF RESULTS-)(·.;-{·*·*;;(-**·*-)!·-)(·-)l,-x·-)H~"*·-)(·-)(·*,,*';'(··~-)H~'",*iB''*''*'-)!'-)HH~'**'*~*'~*'*'-**''lHH'l' * CARLSBAD HIGHLANDS -50 YEAH HYDHOLOGY STUDY * * W.O. 270-40 * * **************************************************************************** ---------------------------------------------------------------------------- USER SPECIFIED HYDROLOGY AND HYDHAULIC MODEL INFORMATION: ---------------------------------------------------------------------------- 1985 SAN DIEGO MANUAL CRITEHIA USER SPECIFIED STORM EVENTCYEAR) -50.00 6-HOUR DURATION PRECIPITATION (INCHES) = 2.400 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GHADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = .85 «««««««««««««««««««»»»»»»»»»»»»»»»»»»» Advanced Engineering Software [AES] SERIAL No. I~7301 VER. 3.4A RELEASE DATE: 4/22/86 «««««««««««««««««««»»»»»»»»»»»»»»»»»»» ***************************************************************************~ FLOW PROCESS FROM NODE 1.00 TD NODE 2.00 IS CODE :::: --------------------------------------------------------------------~-------»»>RATIONAL METHOD INITIAL SUBAREA ANALYSIb««< :::: ::::: ::::: :::: :::::::: :::::::::: :::: ::::::::: :::::::::::::: ::::: ::::: ::::::::::::: ::::: :::::::::::::::: ::::: :::::::-.: :::::::: :'.::: ::::: ::::::::: :::: ::::: ::::: ::::: :::: ::::: ::::: :::-.: :::: ::::: :::::!!! ::::: :::: ::::: ::::: ::::: ::::: ::::-:::::::i.!:::::::::: :-.::: ::::: :::.:: ::::: ::::: :::: :::::::: ::::::::: :' .. '!!:;::: :!".::::''':::::: =-_": ::::::::::.-::: SO IL CL.{-~Sf.3I F I CAT I ON I S It D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTHCFEET) -100.00 UPSTHEAM ELEVATION = 342.00 DDvJNf:lTHEAI'1 EL.E\H·~ T I ON =:= ::540" 00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW (MINUTES) -8.299 ~50 "{EPln nAINFr:1LL INTENE3ITY (H,ICH/HDUFO :::: 4. ~56:1. SUBAREA RUNOFF(CFS) -.50 TOTAL AREACACnES) = .20 TOTAL RUNDFF(CFS) -.50 , • • FLOW PROCESS FROM NODE 2 n 00 TO t··-IClDE '::::;" 00 I S CODE :.": 6 -----------------------------------------------------------------~-----~---- »»>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA««< ======================================================~===================== UPSTREAM ELEVATION = 346.00 DOWNSTREAM ELEVATIDN = 330.00 STREET LENGTH (FEET) = 430.00 CURB HEIGTH(INCHES) = 6. STF~EET HALFl.JIDTH (FEET) ::::: 28. 00 STF~EET CROSSFALL (DECII\·mL) .. -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -4.33 STREET FLOWDEPTHCFEET) = .28 HALFSTREET FLOODWIDTH(FEET) = 7.71 AVERAGE FLOW VELOCITY(FEET/SEC.) -3.04 PRODUCT OF DEPTH&VELOCITY = .85 STREETFLOW TRAVELTIME(MIN) = 2.36 TC(MIN) = 10.66 ~50 YEf~H RA I NF {:iLL I NTENf:3 I TY ( I hlCHI HOUI~) = ~:.. 881 BOIL Cl...ASSIFIC?HION IS "0" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBf~RE(.:) ?~REA CACF\:ES) == 3.60 SUBAREA F~Ln-,mFF (CFS) --7.68 SUl1MED ?"~REA (ACRES) == 3. 80 TOT ?~l... RUNOFF (CFS) ._-B. :1. 9 END OF SUBAREA STREET FLOW HYDRAULICS: DEPTH (FEET) = .33 HALF STREET FLOODWIDTH(FEET) -10.20 FLOW VELOCITY(FEET/SEC.) -3.54 DEPTH*VELOCITY -1.17 **************************************************************************** FLOW PROCESS FROM NODE 4.00 TO NODE 5.00 IS CODE = 2 ----------------------------------------------------------------------------»»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ===============~============================================================== SOIL CLJ1SSIFICIyrION IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-l...ENGTH(FEET) -120.00 UPS1REAM ELEVATION = 395.00 DOWNSTREAM ELEVATION = 386.00 ELEVATION DIFFERENCE = 9.00 URBAN SUBAREA OVERLAND TIME OF FLOWCMINUTES) -8.878 *CAUTION: SUBAREA SLOPE EXCEEDS COUNTY NOMOGRAPH DEFINITION. EXTRAPOLATION OF NOMOGRAPH USED. 50 YEAR RAINFALL INTENSITY (INCH/HOUR) = 4.366 SUBAREA RUNOFF(CFS) -.72 TOTAL AREA (ACRES) = .30 TOTAL RUNOFF (CFS) -.72 **************************************************************************** FLOW PROCESS FROM NODE 5.00 TO NODE 6.00 IS CODE = 6 -------------------------------------------------------------~--------------»»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< .================================================================================ UPSTREAM ELEVATION = 390.00 DOWNSTHEAM ELEVATION = 370.00 STREET LENGTH (FEET) = 450.00 CURB HEIGTH(INCHES) == 6. STREET HALFWIDTH(FEET) = 28.00 STREET C~OS8FALL(DECIMAL) -.0200 E;PEC r F I ED NUt"IBER OF HALFSTHEET!:j C{:~FaW I NG F~UNOFF = 2 *.Y,-TR{~VELT I lyrE C()~1PUTED \..IS I NCl 1'·1Ef..:1N FLOltJ (CFS) --5. 5::::; STREET FLOWDEPTHCFEET) = .28 HALFSTREET FLOODWIDTH(FEET) = 7.71 AVERAGE FLOW VELOCITY(FEET/SEC.) -3.88 PRODUCT OF DEPTH&VELOCITY = 1.09 STREETFLOW TRAVELTIME(MIN) = 1.93 TC(MIN) = 10.81 . 50 YEAR RAINFALL INTENSITY (INCH/HOUR) = 3.846 SOIL CL.J1SSIFICATION IS ItDII SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACHES) =" 4.50 SWBAREA RUNOFF(CFS) = Ct. E.i2 , • PRODUCT OF DEPTH&VELOCITY :::: t.l~:i STREET FLOW TRAVELTIME(MIN):::: 1.53 TC (t"1HO '"" 10.1(3 50 YEAR RAINFALL INTENSITY (INCH/HOUR) :::: 3.999 SOIL CLASSIFICATIOI\I IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBARE(.,) AREA CACRES):::: Ll. 00 SLIB?W~EA RUNOFF (CF!3) '-8. 80 SUMMED AREA(ACRES) = 4.30 TOTAL RUNOFFCCFS) :::: 9.53 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .30 HALFSTREET FLOODWIDTH(FEET) = 8.54 FLOW VELOCITY(FEET/SEC.) :::: 5.62 DEPTH*VELOCITY:::: 1.67 ***************************************************************************~ FLOW PROCESS FROM NODE 8.00 TO NODE 9.00 IS CODE:::: 1 »»>DESIGNATE INDEPENDENT STREAM FOR CoNFLUENCE««< :::::::::::::::::::::::::::::: == ::::::::::= :::::::::::::::::::::::::::::::::::::::::::::::-.:::::: ::::. ::'.:: :::::::::::::::::::::: =.: :::::::::::::::::::::: :::::::::::: =.::::::::::::::::::::::::: =.::::::::::; :::::::: :::: =::;!!::::::: ::::::::::::: :::::::::::::::::: =::: ::::::::: :-.::::::: :-.::: ::::::::: :::-.::::: ::::: f:::::::::: CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE~ T It1E OF CONCENTF~AT I ON (t'1I NUTES ~ =" 10. 1 B RAINFALL INTENSITY (INCH./HOUR):::: 4.00 TOTAL STREAM AREA (ACRES):::: 4.30 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 9.53 ***************************************************************************~ FLOW PROCESS FROM NODE 10.00 TO NODE It.OO IS CODE = 2 ----------------------------------------------------------------------------»»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ======================================================~=================::::=::::~ SO lL CL('~E1S I r'-I C?Yr I ON IS" D \I SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) -500.00 UPSTREAM ELEVATION = 420.00 DOWNSTREAM ELEVATION = 365.00 ELEVATION DIFFERENCE = 55.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) -19.640 *CAUTION: SUBAREA SLOPE EXCEEDS COUNTY NOMOGRAPH DEFINITION. EXTRAPOLATION OF NOMOGRAPH USED. 50 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.616 SUBAREA RUNOFFCCFS) -2.01 TOTAL AREACACRES) = 1.40 ,TOTAL RUNOFF (CFS) -2.01 *********************************,~****************************************** FU)~,J PHClCESS FPm'1 NODE 11 . 00:, TO NODE 9. 00 I G CODE ="" ::;:; ----------------~----------------"------------------------------------------ >:> >:> >Cm'IPUTE PI PEFLm'J TnAVEL T I to/I';: THF:U SUl:Jf.1RE?'<: <: < <: <: ":' ":, ":, ":' '>\)Cl I "',11:: !,'IJI'''IF;'IU'fE':'F\'''''"EcJ'l" I t1-!Yl"ET" r.:':; F-'E~~ I Z r:: (t\lfJI\"""I::,r.;'E"'~"J"~lJI:"E Fl m\I)' <' <' ,( <' <' o' " " _' ... '-.l 1" .... .1 .. J.. _.... •• I"'J ....... : :' ....... .,. 1:... . .... r"\ .... ,.... ... '.," ..... =========::::=======================~========================================~= ESTIMATED PIPE DIAMETER(INCH) INCREASED TO 18.000 DEPTH OF FLOW IN 18.0 INCH PIPE IS 3.7 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 7.6 UPSTREAM NODE ELEVATION:::: 365.00 DOWNSTREAM NODE E~EVATION = 338.00 FLOWLENGTH(FEET) = 550.00 MANNINGS N -.013 ESTIMATED PIPE DIAMETER(INCH) -18.00 NUMBER O~ PIPES - PIPEFLOW THRU SUBAREA(CFS) -2.01 TRAVEL TIME(MIN.) = 1.20 TC(MIN.) -20.84 t ~ **************************************************************************** FLOW PROCESS FPOM NODE 11.00 TO NODE 9.00 IS CODE = t ---------------------------------------------------------------------------- :»»>DESIGNATE INDEPENDENT STREAM POR CONFLUENCE<:«<:< , • • END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .33 HALFSTREET FLOODWIDTH(FEET) = 10.20 FLOW VELOCITY(FEET/SEC.) = 4.42 DEPTH*VELDCITY = 1.46 **************************************************************************** FLOW PROCESS FROM NODE 6.00 TO NODE 9.00 IS CODE = 3 ----------------------------------------------------------------------------»»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>U8ING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)««< ==============================~============================================= ESTIMATED PIPE DIAMETER(INCH) INCREASED TO 18.000 DEPTH OF FLOW IN 18.0 INCH PIPE IS 7.4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 14.9 UPSTREAM NODE ELEVATION = 370.00 DOWNSTREAM NODE ELEVATION = 338.00 FLOWLENGTH(FEET) = 360.00 MANNINGS N -.013 ESTIMATED PIPE DIAMETER(INCH) -18.00 NUMBER OF PIPES -1 PIPEFLOW THRU SUBAREA (CFS) -10.24 TRAVEL TIME(MIN.) = .40 TC(MIN.) -11.21 **************************************************************************** FLOW PROCESS FROM NODE 6.00 TO NODE /;.].00 IS CODE :::: -------~--------------------------------------------------------------------:>:>:> > >J)[S I GNr-rrE I NDEF'ENDENT ~3TF;:E(':~1'1 FOJ:;: CONFLUENCE< < <: <:::: ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE~ TIME OF CONCENTRATION (MINUTES) = 11.21 RAINFALL INTENSITY (INCH./HOUR) = 3.76 TOTAL STREAM AREA (ACRES) = 4.80 TOTAL. STREAM RUNOFFCCFS) AT CONFLUENCE = 10.14 ***************************************************************************~ FLOW PROCESS FROM NODE 7.00 TO NODE B.OO IS CODE :::: .................... _ ...... -__ ............................ ___ -__ • __ • _ ...... _. __ ......................... MOO, __ ................. _ ............... _ .. , ......................... _ ..... _ .. _ .... -_ ............. __ ...... _. _. _ • .; ... ---_ ... oo ..................... _ ... __ • __ ....... _ .. __ .. _H ............. .. »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ============================================================================ :-:3DIL CL.(.'~3ElIFIC('~TION IE IIDIl SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT ~ .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) -120.00 UPSTREAM ELEVATION = 370.00 DOWNSTREAM ELEVATION = 364.00 ELEVATION DIFFERENCE = 6.00 URBAN SUBAREA OVERLAND TIME OF FLOW (MINUTES) -8.648 "*,CAUT I DN: SUBAF~E{'~ m.DPE EXCEEDS CCll.JNTY NDty'IOGm~PH DEFINITION. EXTRAPOLATION OF NOMOGRAPH USED. 50 YEAR RAINFALL INTENSITYCINCH/HOUR) = 4.441 SUBAREA RUNOFF(CFS) -.73 TOTAL AREACACRES) = .30 TOTAL RUNOFF(CFS) -.73 ***************************************************************************. FLOW PROCESS FROM NODE 8.00 TO NODE 9.00 IS CODE = 6 »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ============================================~=============================== UPSTREAM ELEVATION = 364.00 DOWNSTREAM ELEVATION = 338.00 STREET LENGTH (FEET) = 400.00 CURB HEIGTH(INCHEE) = 6. BTF~EET Hf.1L.FJ..tJ IDTI--1 (FEET) :'.:: 2B. 00 STREET CRDSSFALL (DEC I t'I('·1L.) u O:,;::qo SPECIFIED NUMBER OF HALF STREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLDW(CFS) -5.17 STREET FUJWDEPTH(FEET) = .26 HALFSTREET FLOobWIDTH(FEET) -6.88 , • • ". ". '1< '" .• ' I I 11 I, , • • ===========~================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE~ TIME OF CONCENTRATIONCMINUTES) = 20.84 RAINFALL INTENSITY (INCH./HOUR) ± 2.52 TOTAL STREAM AREA (ACRES) = 1.40 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE -2.01 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUt'1BEF< (CFS) 01 IN.) ( I NCH I HOUFO ----------------------------------------------------~----------------------- 1 10.24 1 1 . :;:: j, 3. 756 r~ ",;.. t:.1• 5:3 10. lE: ~J • ct99 M:!" .... 1 :~~ .. 01 2(). 84 ..-, ..::' . 518 RAINFALL-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 20.54 20.42 14.88 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: F~UNOFF (CFS)::::: 20. 54 T I t'1E (t"1 I NUTES) --11 • 212 TOTAL AREACACRES) =' 10.50 **************************************************************************** FLOW PROCESS FROM NODE 12.00 TO NODE 13.00 IS CODE = 2 ----------------------------------------------------------------------------»»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ==========~================~==========:::::=::::======:::::=====:::::==================:::::=== BOIL CU:~SSIFICATION IB "0" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) -140,00 UPSTREAM ELEVATION = 438.00 DOWNSTREAM ELEVATION::::: 435.00 ELEVATION DIFFERENCE::::: 3.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) -9.787 50 YEAR RAINFALL INTENSITY (INCH/HOUR) ::::: 4.100 BUBAREA RUNOFF{CFS) -.45 TOTAL AREA (ACRES) = .20 TOTAL RUNOFF (CFS) -.45 ***************************************************************************~ FLOW PROCESS FROM NODE 1 :3. 00 TO NODE 14.00 IS CODE ::::: 6 , . ----------------------------------------------------------------------------»»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< =======================:::::======:::::====================::::===~======:::::============= UPSTREAM ELEVATION = 435.00 DOWNSTREAM ELEVATION::::: 401.00 STREET LENGTHCFEET)::::: 1000.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) :::: 28.00 STREET CRQSSFALLCDECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RuNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLDW(CFS) -S.26 STREET FLOWDEPTH(FEET) = .28 HALFSTREET FLOODWIDTHCFEET)::::: 7.71 AVERAGE FLOW VELOCITY(FEET/SEC.) = 3.69 PRODUCT OF DEPTH&VELOCITY = 1.04 STREETFLOW TRAVELTIME(MIN):::: 4.52 JC(MIN)::::: 14.30 50 YEAR RAINFALL INTENSITY (INCH/HOUR) = 3.210 SO I L CUiBS I F I CAT I DN I SliD II SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUB{-)REA (-W~EA (?~CI::::ES):::: 5. 40 ~3UBARt~:A RUhlOFF (cr:s) :,: r:,' • 5::~ SUMMED A~~A(ACRES) = 5.60 TOTAL RUNOFF (CFS) -9.99 END DF SUBAREA STREETFLOW HYDRAULICS~ DEPTHCFEET):::: .33 HALFSTREET FLOODWIDTH(FEET) = 10.20 FLOW VELOCITY(FEET/SEC.) -4.31 DEPTH*VELOCITY -1.42 , • • ***************************************************************************~ FLOW PROCESS FROM NODE 1. ~~, 00 TO NODE 14.00 1S COJ.:}E "" 1. -----------------~--------------------~-------------------------~----------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ===================================================================~======== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1. ARE~ TIME OF CONCENTRATION(MINUTES) = 14.30 RAINFALL INTENSITY (INCH./HOUR) = 3.21 TOTAL STREAM AREA (ACRES) = 5.60 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 9.99 **************************************************************************** FLOW PROCESS FROM NODE 15.00 TO NODE 16.00 IS CODE ~ 2 ----------------------------------------------------------------------------»»>RATIONAL METHOD INITIAL SUBAREA ANAlYSIS««< ============================================================================ BOIL CU~SSIFICATION IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) -100.00 UPSTREAM ELEVATION = 437.00 DOWNSTREAM ELEVATION = 435.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW (KINUTES) -8.299 50 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.561 SUBAREA RUNOFF(CFS) -.50 TOTAL AREACACRES) = .20 TOTAL RUNOFF (CFS) -.50 **************************************************************************** FLOW PROCESS F~OM NODE 16.00 TO NODE 17.00 IS CODE = 6 »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ==============================================~========================~==== UPSTREAM ELEVATION = 435.00 DOWNS1~EAM ELEVATION = 402 .. 00 STREET LENGTH (FEET) = 1000.00 CURB HEIGTH(INCHES) = 6. STREET HAlFWIDTH(FEET) = 28.00 STREET CROSSFALL(DECIMAL) - SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) - STREET FLOWDEPTH(FEET) = .31 HALFSTREET FLOODWIDTH(FEET) = 9.37 AVERAGE FLOW VElOCITY(FEET/SEC.) - PRODUCT OF DEPTH&VELOCITY = 1.22 STREET FLOW TRAVELTIME(MIN) = 4.30 TC(MIN) = 12.60 50 YEAR RAINFALL INTENSITY (INCH/HoUR) = 3.485 SOIL Clr-:1S~HFICr-)TID,",1 H3 "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 ..... '_r'''\ ! II / .. ::. SUBAREA AREA (ACRES) = 7.40 SUBAREA RUNDFF(CFS) -14.18 SUMMED AREA (ACRES) = 7.60 TOTAL RUNOFF (CFS) -14.68 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .36 HALFSTREET FLOODWIDTH(FEE"r) -11.85 FLOW VELOCITY(FEET/SEC.) = 4.82 DEPTH*VELOCITY = 1 .. 75 **************************************************************************** FLOW PROCESS FROM NODE 17.00 TO NODE 14.00 IS CODE = 4 --------------------------------------~--------~---------------------------- »»>COMPUTE PIPEFlOW TRAVELTIME THRU SUBAREA««< >.> > > >Uf3 I Nl:J UBEf-(-f3F'EC I F I E:D P I PES I ZE< <: <: <: < ::::: =:::::::::::::: :::::::::: ::::: :::::::::::= = ::::::-.::::::::::::::::::::::::::~::::-.:::::::: :-.::: ::::::::::::::: ::::::.:: ::::::::::::-.:::::: ::::.:::::;-.:: ::::::::: ::::: :::::!'.::: :::".::::::::!'.::: :::::::::::::::::::::::::::: ::::::--.:::::: :::::::::: ::::::::: ::::: ::::::::::::::::: :::: :::: ::-:'"=F-=:::: ::::::;:::::::::::::::: :::::::: ::::: . DEPTH OF FLOW IN 24.0 INCH PIPE IS 12.6 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 8.8 UPSTREAM NODE ELEVATIQN = 402.00 DOWNSTREAM NODE ELEVATION = 401.00 --------~~~~~~~~--~~~~~----~~~~--------------------------------------~ , • • GIVEN PIPE DIAMETERCINCH) = PIPEFLOW THRU SUBAREA (CFS) - TRAVEL TIME(MIN.) = .11 24.00 NUMBER OF PIPES - 14.68 TC (lvIIN.):::: 12.71 **************************************************************************** FLOW PROCESS FROM NODE 17.00 TO NODE 1.4.00 IS CODE :::: 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCC««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATIONCMINUTES) = 12.71 RAINFALL INTENSITY (INCH./HOUR) = 3.46 TOTAL STREAM AREA (ACRES) = 7.60 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 14.68 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) ---------------------------------------------------------------------------- 1 9.99 14.68 14. ::::'0 3.21.0 RAINFALL-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWSn COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) = 23.94 TIME(MINUTES) -12.710 TOTAL AREA (ACRES) = 13.20 **************************************************************************** FLOW PROCESS FROM NODE 16.00 TO NODE 19.00 IS CODE = 2 ------------------------------------------------------------------------~--- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ========================================================================~=== SO I L CLASS I F I C('),T' I ON IS 1\ D 1\ SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) -100.00 UPSTREAM ELEVATION = 393.00 DOWNSTREAM ELEVATION = 391.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) -8.299 50 YEAR RAINFALL INTENSITY (INCH/HOUR) = 4.561 SUBAREA RUNOFFCCFS) -.50 TOTAL AREA(ACRES) = .20 TOTAL RUNOFFCCFS) -.50 **************************************************************************** FLOW PROCEBS FHCJt1 NODE 19. 00 TO NODE 20. 00 I E,) CODE :::: 6 »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ===================================================~======================== UPSTREAM ELEVATION = 391.00 DOWNBTREAM ELEVATION = 378.00 STREET LENGTH (FEET) = 900.00 CURB HEIGTH(INCHES) = 6. STF~EET I-IPII .. FI}JIDTH (FEET) = 28.00 E;;TF::EET CRm3SF'(.'iLL <DECIl"lf.:ll:,.), .-.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 -i!':* TRPtVELT I t'1E Cot'1PU"I"ED UE; I Nt! t1IE{,~N FLm~ (CFH) _.. :~:.. 05 STREET FLDWDEPTH(FEET) = .28 HALFSTREET FLOODWIDfHCFEET) = 7.71 AVERAGE FLOW VELOCITY(FEET/SEC.) = 2.14 PRODUCT OF DEPTH&VELOCITY = .60 STREET FLOW TRAVELTIMECMIN) -7.02 TC(MIN) = 15.32· , • • SUIL_ CI....i::.,BHIFICPITI0N IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACR~S) = 2.90 SUBAREA RUNOFF(CFS) -4.90 SUMMED AREA (ACRES) = 3.10 TOTAL RUNOFF(CFS) = 5.40 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .31 HALFSTREET FLOODWIDTH(FEET) = 9.37 FLOW VELOCITY(FEET/SEC.) = 2.71 DEPTH*VELOCITY = .85 **************************************************************************** FLOW PROCESS FRDM NODE 19.00 TO NODE 20.00 IS CODE = 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ===============================================~=====================~====== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE~ TIME OF CONCENTRATION(MINUTES) = 15.32 RAINFALL INTENSITY (INCH./HOUR) = 3.07 TOTAL STREAM AREA (ACRES) = 3.10 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE -5.40 **************************************************************************** FLOW PROCESS FROM NODE :;;;~ 1 • 00 TO NODE 22.00 IS CODE ::: 2 »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ====================================~===============================~~=~===~ SOIL CU~SSIFICATION IB "0" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTHtFEET) -100.00 UPSTREAM ELEVATION = 394.00 D()f;JN~3TRE{4t'1 ELE'·,,/{4 T I m~ :::: :::;.cr;;:~. 00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW (MINUTES) _. 8.299 50 YE(.:~r-=( RA I NFALL I NTEN~~3 I TY <. I t'·.ICH! HOUH) ~~: 4·. !56:l SUBAREA RUNOFFCCFS) -.50 TOTAL AHEA(ACRES) = .20 TOTAL RUNOF~(CFS) -.50 **************************************************************************** FLOW PROCESS FROM NODE 22.00 TO NODE 23.00 IS CODE = 6 ----------~----------------------------------------------------------------- »»>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA««< :::~:::: =: ::::: ::= :-.::: :::-.::= :::::::-.::::::::::: ::-.. ":::::::-::::::: ::::::::: ::-.::::::::::::::::::::::::::: ::::::::: :::: ::::: ::-.:: ::::::::::::: :.::: :=:::: =::::: :.::: :::: =:: :::: ::::::::: == :::::::: ==::::: :::: ::::::::::::::::::::!:!".!::::: :::-.: :::::-::::::::::::: =: ::::: ::.:: !::::!!!!::=.::: ::::::::: :::::-.: :::: ::::: ::::: UPSTREAM ELEVATION = 392.00 DOWNSTREAM ELEVATION = 379.00 STREET LENGTH (FEET) = 850.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) -2.19 STREET FLOWDEPTH(FEET) = .25 HALFSTREET FLOODWIDTH(FEET) = 6.05 AVERAGE FLOW VELOCITY(FEET/SEC.) -2.26 PRODUCT OF DEPTH&VELOCITY = .56 STREETFLOW TRAVELTIME(MIN) = 6.26 TCCMIN) = 14.56 50 YEAR RAINFALL INTENSITY (INCH/HOUR) = 3.174 SOIL CLf:~E;SIFICATION IE; !lD" SINGLE F ('4t'1 I L Y DE\,'ELDPI'1ENT RUNOFF COEFF I C lENT = • 5~500 SUBAREA AREA (ACRES) = 1.90 SUBAREA RUNOFF (CFS) ~ 3.32 SUMMED AREACACRES) = 2.10 TOTAL RUNOFF(CFS) = 3.82 END OF SUBAREA STREETFLOW HYDRAULICS~ OEPTHCFEET) = .28 HALFSTREET FLOODWIDTH(FEET) = 7.71 FLOW VELOCITY(FEET/SEC.) -2.68 DEPTH*VELOCITY = .75 , • • J »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ==========================================~================================= DEPTH OF FLOW IN 18.0 INCH PIPE IS 6.8 INQ~ES PIPEFLOW VELOCITY(FEET/SEC.) = 6.3 UPSTREAM NODE ELEVATION = 379.00 DOWNSTREAM NODE ELEVATION = 378.00 FLOW LENGTH (FEET) = 58.00 MANNINGS N = .013 GIVEN PIPE DIAMETERCINCH) = lS.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREACCFS) -3.82 TRAVEL TIME(MIN.) = .15 TC(MIN~) = 14.71 1 **************************************************************************** FLOW PROCESS FROM NODE 23.00 TO NODE 20.00 IS CODE = 1 --------------------------------------------------------------~-------------»»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««( »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 14.71 RAINFALL INTENSITY (INCH./HOUR) = 3.15 TOTAL STREAM AREA (ACRES) = 2.10 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE -3.82 CONFU.JEt'~CE I I'WOHt1?H I ON: STREAM RUNOFF TIME INTENSITY NUMBEH (CFS) (MIN.) (INCH/HOUR) --------------------------------------------------------------~------------- 1 5.40 15. :3~2 :::::.07:1. ,-, ....::. ~5" 82 1·(.\·.71 RAINFALL-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS~ Ct.12 9.Of:3 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWSl RUNOFF (CFS) = 9.12 TIMECMINUTES) -15.318 TOTAL AREACACRES) = 5.20 **************************************************************************** FLOW PHOCESS FROM NODE 24.00 TO NODE 25.00 IS CODE :::: ----------------------------------------------------------------------------»»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ==================================~========================================= SOIL CU':)SSIFIC{4TION IS liD" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) = 100.00 UPSTREAM ELEVATION = 418.00 DOWNSTREAM ELEVATION = 416.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAHEA OVEHLAND TIME OF FLOW (MINUTES) -8.299 50 YEAR RAINFALL INTENSITY (INCH/HOUR) = 4.561 SUBAREA HUNOFF(CFS) -,50 TOTAL AREA(ACRES) = .20 TOTAL RUNOFF (CFS) -.50 ·Y.-·M-·*"***·)(-*·*-l<;'**·l':·)(-·x-***·*·X--l(-·*·y':-j(-*·*·x-·~c·)t':**·*,·*·)t':*,r.-**';;-oY,_·M-*·M--lf:*·**·M-·**';':_·i:-{(--)<;'-l'(--l(-*·l(--j(-*-l(-¥:·*·*-l<-***-¥c·*-l(-·*·***-lI:- FlrOlJ·J PROCESS FHOt1 NODE 25.00 TO NODE ::;:~6. 00 I S CODE ::: 6 ----------------------------------------------------------------------------; »»>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA««< ============================================================~=============== UPSTREAM ELEVATION = STREET lENGTH(FEET) ~ 41.6.00 <900 .. 00 DOWNSTREAM ELEVATION = 375.00 CUPB HE 18TH C I NCI-·I1::::f.3) ::::: 6 n , • • FLOW PROCESS FROM NODE 3?00 TO NODE 44. O(l I S CODE ::: ----------------------------------------------------------------------------»»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ============================================~=============================== DEPTH OF FLOW IN 18.0 INCH PIPE IS 7.4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 10.3 UPSTREAM NODE ELEVATION = 363.00 DOWNSTREAM NODE ELEVATION = 342.00 FLOWLENGTH(FEET) = 500.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES -1 PIPEFLOW THRU SUBAREA (CFS) -7.10 TRAVEL TIME(MIN.) = .81 TC(MIN.) = 15.50 **************************************************************************** FLOW PROCESS FROM NODE ~:'7 n 00 TO ~mDE 44. 00 I E3 CODE :::: 1. ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< =================================================================~==========. CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE~ TIME OF CONCENTRATION(MINUTES) = 15.50 RAINFALL INTENSITY (INCH.!HOUR) = 3.05 TOTAL STREAM AREA (ACRES) = 4.00 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 7.10 FLOW PROCESS FROM NODE ~~;8. 00 TO NODE :39 n 00 I S CODE ::: ----------------------------------------------------~---------~------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ===============================================~=======~==================== SOIL. CI .. J"1SElIFIC{HIot\1 IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 I 1',·.1 I T I (..)1... SUBM~EA FLm~···I....EN(3TH (FEET) _. 1. 00 • 00 UPSTREAM ELEVATION = 357.00 DOWNSTREAM ELEVATION = 354.00 ELEVATION DIFFERENCE = 3.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) -7.978 *CAUTION: SUBAREA SLOPE EXCEEDS COUNTY NOMOGRAPH DEFINITION. EXTRAPOLATION OF NOMOGRAPH USED. 50 YEAR RAINFALL INTENSITY (INCH/HOUR) = 4.678 SUBAREA RUNOFF(CFS) -.51 TOTAL AREAtACRES) = TOTAL RUNOFF(CFS) -.5:1. **************************************************************************** FLOW PROCESS FROM NODE 39.00 TO NODE 40.00 IS CODE = 6 ----------------------------------------------------------------------~----- »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ============================================================================ UPSTREAM ELEVATION = 354.00 DOWNSTREAM ELEVATION = 350.00 !'3H~EET LENGTH (FEET):::: ~iOO. 00 CUF:B HE I GTH ( INCHES) :::: 6. STREET HALFVJ I DTH (FEET) = 2B. 00 ~nREET CROBSr-:: ALL (DEC I 1'·1~)L..) •.• n 0:;;::00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -. 6.95 STREET FLOWDEPTH(FEET) = .36 HALFSTREET FLOODWIDTH(FEET):::: 11.85 AVERAGE FLOW VELOCITY(FEET/SEC.) = 2.28 PRODUCT OF DEPTH&VELOCITY = .83 STREET FLOW TRAVELTIME(MIN) = 3.65 TC(MIN) = 11.63 , • • !:3D I L. CL.(.:i~:3b I F I C(.~l T IOI''-J I~:' !I D II SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) -100.00 UPSTREAM ELEVATION:::: 376.00 DOWNSTREAM ELEVATION:::: 374.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) -8.299 50 YEAR RAINFALL. INTENSITY CINCH/HOUR) :::: 4.561 f3UEWIRE('~ RUNDFF (CFS) -_. . ~50 TOTAL. AREA(ACRES) :::: .20 TOTAL RUNOFF (CFS) -.50 *. * *. -)I. -x· "~. -l!. ,*.~" -)I. -l(. ,x, -l!' -x· * -j(. -x· ~f *'l(o * -J!. "~. * "'("1!'''l(--J(. ,"* -)I. "i!. ,11'.;>!' -l'!' ,\!. ,*. ,11, -)1.0 ,'t -l(. -)(0 -)lo -)t. -J(. ,*. -)I. "~. *~"* * * ",>l •• *, *. -)I. -)t -t!. * -t!. * '* -)I. ";t • .,~. 1( . .,,~ ~'i-"* -li: _)1-",* 1(. -)\0 ~,>!. * -x· FLOW ,PROCESS FROM NODE 35.00 TO NODE 36.00 IS CODE = 6 ---------------------------------------------------------------------------- ====================================::::::::==::::=====::::=========~==========~=====::::== UPSTREAM EL.EVATION = 374.00 DOWNSTREAM ELEVATION = 372.00 STREET LENGTH (FEET) = 500.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTHCFEET) :::: 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF:::: 2 **TRAVEL.TIME COMPUTED U~ING MEAN FLOW(CFS) -1.88 STREET FLOWDEPTHCFEET):::: .28 HALFSTREET FLDODWIDTH(FEET):::: 7.71 AVERAGE FLOW VELOCITY(FEET!SEt.) -1.32 PRODUCT OF DEPTH&VELOCITY = .37 STREETFLm'J TRAVELT I I"IE (t'l IN) = 6. ~'::':3 TC (t'1 IN) = :1.4. 6~:; 50 YE('·~R R(', I I',IF f.'.)LL I NTENt3 I T''l' ( I NC::H I HOI..JR) = 3. 164 SOIL CLASSIFICATION IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREACACRES) = 1.60 SUBAREA RUNOFF(C~S) -2.78 SUMMED AREA(ACRES):::: 1.80 TOTAL RUNOFFCCFS) -3.29 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .33 HALFSTREET FLOODWlbTH(FEET) -1Q.20 FLOW VELOCITY(FEET/SEC.) = 1.42 **************************************************************************** FLOW PROCESS FROM NODE :36. 00 TO NODE T7.00 IG CODE :::: »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ==::::=========~=======::::::::======================::::============================~== DEPTH OF FLOW IN 18.0 INCH PIPE IS 3.4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 13.9 UPSTREAM NODE ELEVATION = 372.00 DOWNSTREAM NODE ELEVATION:::: 363.00 FLOWLENGTHCFEET) = 50.00 MANMINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES ~ 1 PIPEFLDW THRU SUBAREA (CFS) -3.29 TRAVEL TIMECMIN.) -.06 TC(MIN.) = 14.69 **************************************************************************** FLOW PROCESS FROM NODE :!.6.00 TO NODE 37. 00 IS c[mr:: :::: 8 ----------------------------------------------------------------------------»»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< =================::::=~=====~==============~===~=============================== 50 YEAR RAINFALL INTENSITY(INCH/HOUR) =·3.156 SOIL CU4SSIFICATION IS liD" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA (ACRES) -2.20 SUBAREA RUNOFFtCFS) -3.82 TOTAL AREACACRES) -4.00 TOTAL RUNOFF (CFS) :::: 7.10 TC(MIN) = 14.69 , • • **************************************************************************~* FLOW PROCESS FROM NODE 31.00 TO NODE 32.00 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ====================================================~==~==================== ~mIL CL(.iSSIFICATION IS "DII SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH (FEET) -100.00 UPSTREAM ELEVATION = 377.00 DOWNSTREAM ELEVATION = 375.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) -8.299 50 YEAR RAINFALL INTENSITYCINCH/HOUR) = 4.561 SUBAREA RUNOFFCCFS) -.50 TOTAL AREA (ACRES) = .20 TOTAL RUNOFF (CFS) -.50 **************************************************************************** FLOW PROCESS FROM NODE ~:'2. 00 1-"0 NODE 3~:'. 00 I E3 CODE ::-.:: ----------------------------------------------------------------------------»»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< :::::-::::::::::-.::::::::::::::::::: ::: :!:::::::::::::::: :::::-.:: :::::::::::::::::::.-:: ::::::::::::::::::::::: ::::::::::::::::::::::::::::::::::::::;:::::::::::::::: :.::=::::::;: :::=::::: ==.:. :::::::::::::::-.:: =.::=:::!::~::::::=;:: :::.~:::: ::::::::: ::'':::::: ::;::::::::::: ::::::::::::::::::::::::::::::: :::::::::::: ::::: UPSTREAM ELEVATION = 375.00 DOWNSTREAM ELEVATION = 372.00 STREET LENGTHCFEET) = 580.00 CURB HEIGTH(INCHES) , = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALLCDECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -2.13 STREET FLOWDEPTH(FEET) = .28 HALF STREET FLOODWIDTH(FEET) = 7.71 AVERAGE FLOW VELOCITY(FEET/SEC.) -1.49 PRODUCT OF DEPTH&VELOCITY = .42 STREETFLOW TRAVELTIME (MIN) = 6.47 TC(MIN) = 14.77 50 YEAR RAINFALL INTENSITYCINCH/HOUR) = 3.145 SOIL CU~SSIFICATION IS 110 11 SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES) = 1.90 SUBAREA RUNOFF (CFS) -3.29 SUMMED AREA (ACRES) = 2.10 TOTAL RUNOFF (CFS) -3.79 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTHCFEET) = .33 HALFSTREET FLOODWIDTH(FEET) -10.20 FLOW VELOCITY(FEET/SEC.) = 1.64 DEPTH*VELOCITY = .54 **************************************************************************** FLOW PROCESS FROM NODE 33.00 TO NODE 37.00 IS CODE = 4 ---------------------------~--------------~-----------------------~--------~ »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-E3PECIFIED PIPESIZE««< ===============================~============================================ DEPTH OF FLOW IN 18.0 INCH PIPE IS 4.0 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 12.9 UPSTREAM NODE ELEVATION = 372.00 DOWNSTREAM NODE ELEVATION = 363.00 FLOWLENGTHCFEET) = 70.00 MANNINGE3 N = .013 GIVEN PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREA(CFS) -3.79 TRAVEL TIME(MIN.) = .09 TC(MIN.) = 14.86 *****************************~********************************************** FLOW PROCESS FROM NODE 34.00 TO NODE 35.00 IS CODE = 2 ---------------------------------------------------------------------------- ___ .:....->)->:> >f~?Yr I DI\I('~L r'1ETHDD I NIT I (.11.... Bur3(~F\:E{~ m,h':~LYS I S< <: -::: <: < , • • 50 YEAR RAINFALL INTENSITY (INCH/HDUR) = 3.694 SOIL. CLnSSIFICATIDN IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES) = 4.60 SUBAREA RUNOFF (CFS) = 9.35 SUMMED AREA (ACRES) = 4.BO TOTAL RUNOFF (CFS) = 9.85 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .33 HALFSTREET FLOODWIDTH(FEET) = 10.20 FLOW VELOCITY(FEET/SEG.) = 4.25 DEPTH*VELOCITY = 1.40 **************************************************************************** FLOW PROCESS FROM NODE 29.00 TO NODE 30.00 IS CODE ;.:: »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ============================================================~=============~= DEPTH OF FLOW IN 24.0 INCH PIPE IS 7.9 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 10.9 UPSTREAM NODE ELEVATION = 370.00 DOWNSTREAM NODE ELEVATION = 368.00 FLOWLENGTH(FEET) = 50.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES - 1 PIPEFLOW THRU SUBAREA (CFS) -9.85 TRAVEL TIME{MIN.) = .OB TC(MIN.) = 11.58 ***************************************************************************~ FL..m·J PF\()CESS FROt"! NODE 29. 00 TO NODE ~:;o. 00 I E3 CODE :~" 8 »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< ================================================================~=========== 50 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.679 BOIL CU::1SSHFIC?HION IS "0" f.:) I NCJLE F (·it"! I L Y DEVEI~.c)PI"IENT FU.JNOFF COEFF I C lENT :::: • ::.:;~)OO SUBAREA AREA(ACRES) -9.30 SUBAREA RUNOFF(CFS) -18.82 TOTAL AREA (ACRES) -14.10 TOTAL RUNOFF(C~S) = 28.66 TC (t'lIN) = 11.58 **************************************************************************** FLOW PROCESS FROM NODE 30.00 TO NODE 44.00 IS CODE::::: 4 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< =========================================================:::::========:::::====:::::~=== DEPTH OF FLOW IN 24.0 INCH PIPE IS 16.0 INCHES PIPEFLOW VELOCITY(FEET/SEC.)::::: 12.9 UPSTREAM NODE ELEVATION = 368.00 DOWNSTREAM NODE ELEVATION = 342.00 FLOWLENGTH(FEET) = 850.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES - 1 PIPEFLOW THRU SUBAREA(CFS) ~ 28.66 TR~~VEL l1l'1E(t'lIN.) = 1.10 Te<l-1IN.)::::: 12.68 **************************************************************************** FLOW PROCESS FROM NODE 30.00 TO NODE 44.00 IS CODE = 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< , :::::::;::= ::::: = :::::.::::::::: ::::: ::::: :::: :::: :::: == ::::::::::::::::::-.:: =-.: :::: :::: :::::::::::::::: ::::::::::::; :::::::: ::::: ::::: ::::::::: :::: ::::::-.::::::::::: = ::::::::: =::::: :::: ::-.: ::::: = ::. .. .: :::: :::: :::: :::::::::::::::: ::::; ::::::::: ::::::::: :::::::::: :::::::::: =,::'::::: :::: :::::::: :::::::-;:::: ::::: CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE~ TIME OF CONCENTRATION (MINUTES) = 12.68 RAINFALL INTENSITY (INCH./HOUR) = 3.47 TOTAL STREAM AREA (ACR~S) = 11.10 , • • SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) - STREET FLOWDEPTH(FEET) = .31 HALFSTREET FLOODWIDTH(FEET) = 9.37 AVERAGE FLOW VELOCITY(FEET/SEC.) - PRODUCT OF DEPTH&VELOCITY = 1.56 STREET FLOW TRAVElTIME(MIN) = 3.02 TC(MIN) = 50 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.734 EmIL CUiSSIFICATION IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES) = 9.10 SUBAREA RUNOFF (CFS) -18.69 SUMMED AREA(ACRES) = 9.30 TOTAL RUNOFF(CFS) = 19.19 END OF SUBAREA STREET FLOW HYDRAULICS: DEPTH (FEET) = .38 HAlFSTREET FLOODWIDTH(FEET) = 12.68 FLOW VELOCITY(FEET/SEC.) = 5.56 DEPTH*VELOCITY = 2.11 **************************************************************************** FLOW PROCESS FROM NODE 26.00 TO NODE 30.00 IS CODE = 4 ----------------------------------------------------------------------------»»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ====================================================================~======= DEPTH OF FLOW IN 24.0 INCH PIPE IS 8.9 INCHES PIPEFLOW VElOCITYCFEET/SEC.) = 18.2 UPSTREAM NODE ELEVATION = 375.00 DOWNSTREAM NODE ELEVATION = 368.00 FLOWLENGTH(FEET) = 70.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREA(CFS) -19.19 TAAVEL TIMECMIN.) = .06 TC(MIN.) = 11.38 **************************************************************************** FLOW PROCESS FROM NODE 27 u 00 TO b\DDE 28. 00 I S CODE ::::: »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ====================================================~==========~===========~ SOIL CU·)SSIFIC?\Tlm\1 IB "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-lENGTH (FEET) -100.00 UPSTREAM ELEVATION = 393.00 DOWNSTREAM ELEVATION = 391.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FlOW(MINUTES) -8.299 50 YEAR RAINFALL INTENSITY (INCH/HDUR) = 4.561 SUBAREA RUNOFFCCFS) -.50 TOTAL AREA (ACRES) = .20 TOTAL RUNOFF(CFS) -.50 **************************************************************************** FLOW PROCESS FROM NODE 28. 00 TO t".lDDE 29. 00 It? CDDE :::: --------------------------~--------------------------~----------------------»»>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA««< ======================================================================~==~== UPSTREAM ELEVATION = 391.00 DOWNSTR~AM ELEVATION = 370.00 STREET ltNGTH(FEET) = 700.00 CURB HEIGTH(INCHEB) = 6. STREET HALFWIDTHCFEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALF STREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -5.1~ t:nREET FLCH'JDEPTH (FEET) = • 28 HALFSTREET FLOODWIDTH(FEET) = 7.71 AVERAGE FLOW VELOCITY(FEET/SEC.) -3.64 PRODUCT OF DEPTH&V~~OCITY ~ 1.02 , • • SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREACACRES) = 6.40 SUBAREA RUNOFF(CFS) = 12.92 SUMMED AREA (ACRES) = 6.60 TOTAL RUNOFFCCFS) -13.43 END OF SUBAREA STREET FLOW HYDRAULICS~ DEPTHCFEET) = .45 HALF STREET FLODDWIDTHCFEET) = 15.99 FLOW VELOCITY(FEET/SEC.) = 2.51 DEPTH*VELOCITY = 1.12 **************************************************************************~ FLOW PROCESS FROM NODE 40.00 TO NODE 44.00 IS CODE = 4 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< :::::-.:==::::;:=:::::::::::::::::===::::::::::::-.::::::::::::::::::::::::::::::.-:::::::::::::::::::::-.:::::-.:::::::::::::::::-.::::::::::::::::::::::::===::::::::::::::::::::::::::':::::::::::::::::::::::::::-.::==:::::::::::::::::,::::::::::::::::::::::::::::::::::.::::::::::::: .. :::;::::::::-.::=:::::::::"":'::: DEPTH OF FLOW IN 18.0 INCH PIPE IS 7.4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 19.8 I...IPSTRE(:)t'1 NODE ELEVAT I ON :0:: ~550. 00 DOWNSTREAM NODE ELEVATION = 342.00 FLOWLENGTHCFEET) = 60.00 MANNINGS N = .012 GIVEN PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES - . 1 PIPEFLOW THRU SUBAREA(CFS) -13.43 TRAVEL TIMECMIN.) = .05 TC(MIN.) = 11.68 :!l •. l!--lEo ,~. * -lE' '1!' * -x. :!l' * ~~. * -lE' ,,* 1!. ,,)(. -lE'''>!--lE' ~~'1!' -)I--)I. -l!--J!. -)I. ~~. * -)!-:)(-,*. -)I. ~\!.:.* -l(. * ~'>l-:;(--)I. olio ,'I' 1!' 1! . .;~. ,,~. -)1. 71--J(. 01· *:* -il-t;( • .;1(. 1(' 7!' .1!' 1!' "*. ~>!-';'HI' -iF * :;(. ,li' -lE. :Jl. ,*. -X, -)I-,,>{-o'>!-.* FLOW PROCESS FROM NODE 40.00 TO NODE 44.00 IS CODE = 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< =========================================================================== CONFLUENCE V(:,LUEB USED FDR I j\mEPENDENT STREAI"1 ::~ ('~F\E: TIME OF CONCENTRATION (MINUTES) = 11.68 RAINFALL INTENSITY (INCH./HOUR) = 3.66 TOTAL STREAM AREA (ACRES) = 6.60 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 13~43 **********************************************~**************************** FLOW PROCESS FROM NODE 41.00 TO NODE 42.00 IS CODE = 2 »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ====================================================================~====== ~mIl CL.ASSIF·ICf:HION IS "0" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .~500 INITIAL SUBAREA FLOW-L.ENGTH(FEET) -100.00 UPSTREAM ELEVATION = 365.00 DOWNSTREAM ELEVATION = 363.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREi:\ OVEm .. AND T I t1E OF Fl_OW (1'"1 I NUTES) -. B. 29':? 50 YEAR RAINFALL INTENSITYCINCH/HOUR) =4.561 SUBAREA RUNOFF (CFS) -.50 TOTAL AREACACRES) -.20 TOTAL RUNOFFtCFS) -.50 *************************************************************************** FLOW PROCESS FROM NODE 42.00 TO NODE 6 »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ================================================~========================== UPSTREAM ELEVATION = 363.00 DOWNSTREAM ELEVATION = 343.00 STREET LENGTH (FEET) = 600.00 CURB HEIGTHCINCHES) = 6. ~TREET HALFWIDTH{FEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HAL.FSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOWCCFS) -1.90 STREET FLOWDEPTH(FEET) = .21 HALFSTREET FL6oDWIDTHCFEET) = 4.40 , • , PRODUCT OF DEPTH&VELOCITY = STREETFLDvJ TRA')ELT n1E (lvl IN) = :::;;. :Y.? TC(MIN) -11.57 50 YEAR RAINFALL INTENSITY(INCH/HOUR) ::::: 3.680 SOIL CU\S~3IFlc('HION IS ItDIt SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT::::: .5500 SUBAREA AREACACRES) = 1.40 SUBAREA RUNOFF(CFS) -2.83 SUMMED AREA (ACRES) ::::: 1.60 TOTAL RUNOFF(CFS) -3.34 END OF SUBAREA STREET FLOW HYDRAULICS~ DEF'TI-" (FEET):::: • 2~j H(:%LFBTHEET Fl.OOmHDTl-·l (FEET) --6. O~:; FLOW VELOCITYCFEET/SEC.) = 3.44 DEPTH*VELOCITY = .85 *************************************************************************** FLOW PROCESS FROM NODE 43.00 TO NODE 44.00 IS CODE = 4 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< =========================================================================== DEPTH OF FLOl-<J IN 18.0 INCH PIPE IS 6. 1 It\ICHES PIPEFLOW VELOCITY(FEET/SEC.) = 6.4 UPSTREAM NODE ELEVATION = 343.00 DOWNSTREAM NODE ELEVATION = 342.00 FLOWl.ENGTH(FEET) = 50.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES -1 PIPEFlOW THRU SUBAREA(CFS) -3.34 TRAVEL TIME(MIN.) = .13 TC(MIN.) = 11.70 **************************************************~************************ FLOW PROCESS FROM NODE 4::::;. 00 TO NODE 44.00 It) CODE ".:: »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFlUENCED STREAM VALUES««< 1 ========================================================~==============~=== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 4 ARE: Tlt"1E OF CDNCENTHATIClI'J (MINUTES) = 11 n 70 RAINFALL INTENSITY (INCH./HOUR) = 3.65 TOTAL STREAM AREA (ACRES) = 1.60 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 3.34 CONFLUENCE INFORMATION~ STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) 1 ~28 n 66 1:2. 6(3 '< '_'ft 1.+69 ,," .. .f::. 7 . 10 1.'~5 " :'50 :~:. If 048 3 1 :::;;. 4~5 1 1 . e:it3 ~..;; n 65':1 4 3. ~:'4 1 :I. . 70 '':!" ,_, n 65·l.J· RAINFALL-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR 4 STREAMS VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS= 50.81 46.26 49.86 49.89 COMPUTED CONFLUENCE ESTIMATES ARE AS FOl.LOWS: RUNOFF (CFS) = 50.81 TIME(MINUTES) -12.682 TOTAL AREA(ACRES) = 26.30 **************************************************************************~ FLOW PROCESS FROM NODE 44.00 TO NODE 50.00 IS CODE = 4 . ----------------------------------------------------------------~r-------~-»»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< =================~========================================================: DEPTH OF FLOW IN 36:0 INCH PIPE IS 16.3 INCHES , • • I....!Pb·j m::f·H'j i'KWL ELE'·/f'.~1 T ]. uN ,-": DOWNSTREAM NODE ELEVATION - FLOWLENGTHCFEET) = 850.00 GIVEN PIPE DIAMETER(INCH) = PIPEFLOW THRU SUBAREACCFS) - TRAVEL TIME(MIN.) = .e6 MANNINGS N = .013 36.00 NUMBER OF piPES -:I. 50.8l TC(MIN.) = 13.55 **************************************************************************~ FLOW PROCESS FROM NODE 44.00 TO NODE 50.00 is CODE = :I. ---------------------------------------------------------------------------»»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ::::::::::::::::::::::::::::::::::::::::::::::::::-.::====:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::-.:::::::::::::.-::::::::::::::::::::::=::::::::::::::::::::==:=:::::::::::::-.::::::::::::::::::::::::::::::::::::::::::::::::::::::::!:::::::::::::::::.:::::::::.":".::::-.::::::::-.:::::::. CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATIONCMINUTES) = 13.55 RAINFALL INTENSITY (INCH./HOUR) = 3.32 TOTAL STREAM AREA (ACRES) = 26.30 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 50.81 **************************************************************************1 . FLOW PROCESS FROM NODE 48.00 TO NODE 49.00 IS CODE = 2 ---~-----------------------------------------------------------------------»»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ================================================================~=========== SOIL CU:~SSIFIC?'iTION IS "0" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) = 100.00 UPSTREAM ELEVATION = 343.00 DOWNSTREAM ELEVATION = 341.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW (MINUTES) -8.299 50 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.561 SUBAREA RUNOFF(CFS) -.50 TOTAL AREACACRES) -.20 TOTAL RUNOFFCCFS) -.50 FLOW PROCESS FROM NODE 49.00 TO NODE ~50. (l0 I S CODE :::: ---------------------------------------------------------------------------::. »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< =================================================~========================= UPSTREAM ELEVATION = 341.00 DOWNSTREAM ELEVATION = 309.00 STREET LENGTH(FEET) = 800.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -3.35 STREET FLOWDEPTH(FEET) = .25 HALFSTREET FLDODWIDTH(FEET) = 6.05 (.~l·'/EF<f~GE FLOW \}ELClC I TY (FEET I SEC.) _.. 3. 46 PRODUCT OF DEPTH&VELOCITY = .86 STREETFlOW TRAVELTIMECMIN) = 3.86 TC(MIN) = 12.16 50 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.565 SClIL CLASf.HFIC('~TION IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA (ACRES) = 2.90 SUBAREA RUNOFF (CFS) -5.69 SUMMED AREACACRES) = 3.10 TOTAL RUNOFF(CFS) -6.19 END OF SUBAREA STREETFLOW HYDRAULICS~ DEPTH(FEET) = .28 HALFSTREET FLOODWIDTH(FEET) -7.71 FLOW VELOCITY(FEET/SEC.) = 4.34 DEPTH*VELOCITY = 1.22 ***************************************************************************. FLOW PROCESS FROM NODE" 49.00 TO NODE 50.00 IS CODE = 1 • • I »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< ==================================================~=========================: CONFLUEI\ICE l··.,.'ALUES USED FOr;: I NDEl':'ENDENT BTRE(.11vl 2 (:1r:::E r. TIME OF CONCENTRATIONCMINUTES) = 12.16 RAlNFALL INTENSITY (INCH./HOUR) = 3.57 TOTAL STREAM AREA (ACRES) = 3.10 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 6.19 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY Nut'1BER (CFS) (tT1 IN.) ( INCH / HOUr~) 1 50.81 ':::,. 19 12.16 RAINFALL-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS VARIOUS.CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS~ COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFFCCFS) = 56.58 TIME(MINUTES) -13.547 TOTAL AREACACRES) = .;t -ii' -ii' ,,!. -:hiH(' -)!. -;i .. * ·M· .:"t * -l!' -j(. -j(-.* -)(0 * ~1-.:~ . .,'i' -?i!' ~\(. ,ll' .* .;~. ';h·i· .:~. * .,~ . .,Ii-.,\!o .:* -ii' ,* .. M-.;~ • .;~. ,ll' ',l{-';f ':'1-';'1-,*. -:~ . .;'t .;~ .. :Ii. ~ . .;~ .. :~. ,'to.;r.;. -)I. ·M· ,,* ~'l' .:~ .. :~. :1\' ~~ .. :~. -)Hh'l-"!l-'*':1\' -l!' ·ii· ,* .* ~'!- FLOW PROCESS FROM NODE 50.00 TO NODE 48.00 IS CODE = 4 ---------------------------------------------------------------~----------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ::::==:::::::::::::::::::::::=:=====::::::::====.::::::::::=::::.==::::=.::::::-.:=:::::::=:=:::::::::::::::.::::.:::::::::::::::::-.:::::::::r,:::::,:::::::::.:::::::::::::::::::::::::::::::::::::::::::::::::-.::::::::::::-.::;:::::=:::::===:=::---:=:::::::::.= DEPTH OF FLOW IN 36.0 INCH PIPE IS 18.5 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 15.4 UPSTREAM NODE ELEVATION = 309.00 DOWNSTREAM NODE ELEVATION = 305.00 FLOWLENGTHCFEET) = 130.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREA (tFS) -56.58 TRAVEL TIME(MIN.) = .14 TC(MIN.) = 13.69 **************************************************************************~ FLOW PROCESS FROM NODE 50.00 TO NODE .!j·8.00 IS CODE ::: -----------------------------~---------------------------------------------»»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< =========================================================================== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 13.69 RAINFALL INTENSITY (INCH./HOUR) = 3.30 TOTAL STREAM AREA (ACRES) = 29.40 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 56.58 **************************************************************************~ FLOW PROCESS FROM NODE 45. 00 TO t·,.IODE 46.00 IS CODE = »»>RATIONAL METHOD INITIAL SUBAREA ANALvSIS««< ================================================;========================== SDIL CI.. .. (.·)SSIFIC?HIOt-..! IS "nil SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 JNITIAL SUBAREA FLOW-LENGTHCFEET) -100~00 UPSTREAM ELEVATION = 347.00 DOWNSTREAM ELEVATION = 345.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) -8.299 50 YEAR RAINFALL INTENSITV(INCH/HDUR) = 4.561 • • I TOTAL AREA(ACRES) = TOTAL RUNOFF (CFS) - **************************************************************************i' FLOW PROCESS FROM NODE 46. 00 TO I'-.!DDE ,q·7.00 IS CODE ::: »»)COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ;.::: :::: :::-.: =::: :::::::: :::: :::: ::::::::::::::::::::::::::::: :::::'.:::::: ==::::::.-:::::::::::::: :0 .. ": :::::::: :::::;:;:: ::::::::: :::::::::::: :::: :::::-.: ::::::::.;-.: ::;:: ::::::::: ::,::: :::: ::::: :::: ::.:::::::::=: ::::: ::::.~:: :::::: ::::: ::::: ::::: ::::: :;::: :::::::::: :::: :::: ::::;,::::::::: ::.-.: ::::: :::: :::: :::.: ::,:: ::::: ::::: ::: UPSTREAM ELEVATION = 345.00 DOWNSTREAM ELEVATION = 305.00 ::3n-;:E[T LENl:JTH < FEET) :::: 1000. 00 CURB HE I C1TH ( I t···.IC1··IEf:;) ::::: 6. STF~EET H('~LF",JIDTI"'I (FEET) :::: ::28.00 f:3TREET CRO!:3GF('~LL (DECIt'1PIL) ....• 0200 SPECIFIED NUMBER OF HALFGTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CPS) -7.59 STREET FLOWDEPTHCFEET) = .30 HALFSTREET FLOODWIDTHCFEET) = 8.54 AVERAGE FLOW VELOCITYCFEET/SEC.) = 4.48 PRODUCT OF DEPTH&VELOCITY = 1.33 STREET FLOW TRAVELTIME(MIN) = 3.72 TCCMIN) = 12.02 50 YEAR RAINFALL INTENSITYCINCH/HOUR) = 3.591 SO I L CU~Sf.3 I F I CAl' I ON I SliD II S I NGP:: F A 1'1 I L Y DEVEUJPI'1EI\IT RUNOFF CDEFF I C I a··n = . ~5!7500 SUBAREA AREACACRES) = 7.10 SUBAREA RUNOFF(CFS) = 14.02 SUMMED AREA(ACRES) = 7.30 TDTAL RUNOFFCCFS) = 14.52 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTHCFEET) = .36 HALFSTREET FLOODWIDTH(FEET) = 11.85 FLOW VELOCITY(FEET/SEC.) = 4.77 DEPTH*VELOCITY = 1.73 *************************************************************************** FLOW PROCESS FROM NODE 47. 00 TD r.·IODE 48. 00 I f:; CODE: ::: 4 -----------------------------------------------~----------------~---------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»)USING USER-SPECIFIED PIPESIZE««< ================================~=========================================~ PIPEFLOW VELDCITY(FEET/SEC.) = 8.2 UPSTREAM NODE ELEVATION = 306.00 DOWNSTREAM NDDE ELEVATION = 305.00 FLOWLENGTHCFEET) = 50.00 MANNINGS N = .013 GIVEN PIPE DIAMETER CINCH) = 18.00 NUMBER OF PIPES -1 PIPEFLOW THRU f:;UBAREA<CFS) -14.52 TRAVEL TIMECMIN.) -.10 TCCMIN.) = 12.12 ***********~*************************************************************** FLOW PROCESS FROM NDDE 47.00 TO NODE 48.00 IS CODE = 1 -----------------------------------------------------~----------~----------»»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»)AND COMPUTE VARIOUf:; CONFLUENCED STREAM VALUES««< =====================================================================~===== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATIONCMINUTES) = 12.12 RAINFALL INTENSITY (INCH./HOUR) = 3.57 TOTAL STREAM AREA (ACRES) = 7.30 TOTAL STREAM RUNOFF(CFS) AT CONFLUENC~ -14.52 CONfLUENCE INFORMATION~ STREAM RUNOFF TIME INTENSITY NUt'1BER (CFf3) <1'11 N.) (I NCHlHDI . ..JR) ---------------------------------------------------~-------------------~---. 1 56.58 14.52 13.6<7' 1.2.1.2 3. ~5()~~; 3. !:57::~ RAINFALL-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS VARIOUS CONFLUENCEP ~UNOFF VALUES ARE AS FOLLOWS: • • I t..:LJI·'II,,:'U·j ED LUNfL.Ut:.i'K:E:. I:.~:; I H"If.YI t::t:i Ah:E ?:\t3 I::: ULl...Ln'·Jb ~ RUNOFF (CFS) = 70.01 TIMECMINUTES) -13~687 TOTAL AREACACRES) = 36.70 ************************~*********************************************** FLOW PROCESS FROM NODE 48.00 TO NODE 127.00 IS CODE = 4 ------------------------------------------------------~----------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ======================================================================== DEPTH OF FLOW IN 36.0 INCH PIPE IS 21.3 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 16.1 UPSTREAM NODE ELEVATION = 305.00 DOWNSTREAM NODE ELEVATION = 302.00 FLOWLENGTH(FEET) = 100.00 MANNINGS N = .013 GIVEN PIPE DIAMETER CINCH) = 36.00 NUMBER OF PIPES - 1 PIPEFLOW THRU SUBAREA(CFS) -70.01 TRAVEL TIME(MIN.) = .10 TC(MIN.) = 13.79 ******************************************************************~*****. FLOW PROCESS FROM NODE 48.00 TO NODE 127" 00 IS CODE ::::: 1 ------------------------------------------------------------------~-----. »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ========================================================================, CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATIONCMINUTES) = 13.79 RAINFALL INTENSITY (INCH./HOUR) = 3.29 TOTAL STREAM AREA (ACRES) = 36.70 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 70.01 ************************************************************************. FLOW PROCESS FROM NODE 125.00 TO NODE 126.00 IS CODE = 2 »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< =======================================~================================: SOIL CLAS~3IFIC?YrION H3 liD" PUF~nL DE',,Jr:::L..OF't'lIENT m.Jt'·IOFF CDEFF I C lENT ::::: . 4500 NATURAL WATERSHED NOMOGRAPH TIME OF CONCENTRATION WITH 10-MINUTES ADDED = 14,,03CMINUTES) INITIAL SUBAREA FLOW-LENGTH (FEET) -800,,00 UPSTREAM ELEVATION = 347.00 DOWNSTREAM ELEVATION = 301.00 ELEVATION DIFFERENCE = 46.00 50 YEAR RAINFALL INTENSITY (INCH/HOUR) -3.250 SUBAREA RUNOFF (CFS) -2.05 TOTAL AREA (ACRES) = 1,,40 TOTAL RUNOFF (CFS) - ************************************************************************~ FLOW PROCESS FROM NODE 126.00 TD NODE 127" 00 I B CODE ::::: --------------------------------------------~-----------------~---------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< :> >-:> :> :>(·)ND CCWIPUlE VAF;: I [lUG cm·.IFLUENCED EnpE(·~t·'1 t,/tILUES< -::: <: -:::-::: ==========================~===========================================~=, CONFLU~NCE VALUES USED FOR INDEPENDENT STREAM 2 ARE~ TIME OF CONCENTRATION(MINUTES) = 14.03 RAINFALL INTENSITY (INCH./HOUR) = 3.25 TOTAL STREAM AREA (ACRES) = 1.40 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE 2.05 CDhIFLUEI\ICE I NFDF?l1tH I DN ~ ~::TF;~EAn nUNOFF T r. tilE } Il\lTENf3 I TV --~-----------~.~ .. ~ .. ~~.-~. ----~~~----~~~--~~~~~~--~----------------------------~ • • I 1 7O. 01 1 ~~: 11 79 ~::. II ::~87 ,." ~, 05 14. 03 . .. :Z5(:· .I::. .'::. n '~:1 h RAINFALL-INT~NSITY-RATIO CONFLUENCE FORMULA USED FOR 2 VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS~ 71 n 2f.3 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS~ RUNOFF (CFS) = 72.03 TIME(MINUTES) -13.791 TOTAL AREA(ACRES) = 38.10 ************************************************************************~ FLOW PROCESS FROM NODE 49.00 TO NODE 50.00 1s CODE = 2 ---------------------------------------------------------------~--------. »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ===========================================================~==~========== SOlL. CLASSIFICATION IS "DII SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT:::;: .5500 INITIAL SUBAREA FLOW-LENGTHCFEET) -100.00 UPSTREAM ELEVATION = 444.00 DOWNSTREAM ELEVATION = 442.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOWCMINUTES) -8~299 50 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.561 SUBAREA RUNOFF(CFS) -.50 TOTAL AREA(ACRES) -.20 TOTAL RUNOFFCCFS) -.50 ************************************************************************. FLOW PROCESS FROM NODE 50.00 TO NODE ~; 1 • 00 I S CODE :::;: -------------------------------------------------------~----------------. »»>cm'1PUTE STF~EETFLm4 TFU·)VELTIt1E THF;;U l3UB{")HE?-1««< ====================================================::::==========::::=======~: UPSTREAM ELEVATION:::: 442.00 DOWNSTREAM ELEVATION = 400.00 STREET LENGTHCFEET):::: 750.00 CURB HEIGTHCINCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALLCDECIMAL) = .0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOPF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -9.81 STREET FLOWDEPTHCFEET):::: .31 HALFSTREET FLOODWIDTH(FE~r) = 9.37 AVERAGE FLOW VELOCITYCFEETfSEC.) -4.93 PRODUCT OF DEPTH&VELOCITY :::: 1.54 STREETFUJ\JJ TRAVELT H1E <1'1 un::::: 2.54 TC nT1I N) = 10 u 84 50 YEAR RAINFALL INTENSITY(INCH/HOUR) :::: 3.840 f.3CJIL CLA~"3SIFICATIDN IS "1)11 SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREACACRES):::: 8.80 SUBAREA RUNOFFCCFS) -18.58 SUMMED AREACACRES) = 9.00 TOTAL RUNOFF (CFS) -19.09 END OF SUBAREA STREET FLOW HYDRAULICS= DEPTH (FEET):::: . ~:'6 1-·1f"},L..FSTREET FUJGD\l4 I DTI-I (FEE:T) ..... j. 1 • ~15 FLOW VELOCITY(FEET/SEC.) :::: 6.27 DEPTH*VELOCITY::::: 2.28 ************************************************************************ FLOW PROCESS FROM NODE 51.00 TO NODE 55.00 IS CODE = 4 -----------------------------------~----------------------------~------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< =================================================::::======~=====,==::::~::::==== DEPTH OF FLOW IN 18.0 INCH PIPE IS 12.2 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 14.9 UPSTREAM NODE ELEVATION:::: 400.00 DOWNSTREAM NODE E~~V~TION = 364.00 • • " I, G I \v'EJ~ F':£ FE D I ?:11"1ETEFi: ( I !'K;H) "'" PIPEFLOW THRU SUBAREA (CFS) - TRAVEL TIME(MIN.) = .67 NUMBER OF PIPES - 1 C,' (,q • (11 .... ~ Te (I"I IN.)::: 1. :I .• ~ .. H ************************************************************************ FLOW PROCESS FROM NODE 51.00 TO NODE 55.00 ts CODE = 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ==============~===~~~===================================~=============~=. CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1. ARE: TIME OF CONCENTRATION (MINUTES) = 11.51 RAINFALL INTENSITY (INCH./HOUR) = 3.69 TOTAL STREAM AREA (ACRES) = 9.00 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 19.09 ************************************************************************. FLOW PROCESS FROM NODE 52.00 TO NODE 53.00 IS ~ODE = 2 ------------------------------------------------------------------------. »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ========================================================================: SOIL CU~SSIFICfHION IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH (FEET) -100.00 UPSTREAM ELEVATION = 377.00 DOWNSTREAM ELEVATION ~ 375.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) -8.299 50 YEAR RAINFALL INTENSITY (INCH/HOUR) = 4.561 SUBAREA RUNOFF(CFS) -.50 TOTAL AREACACRES) = .20 TOTAL RUNOFF(CFS) -.50 ******************************************************~***************** .. FLOW PROCESS FROM NODE ~!~::.. 00 TO NODE:: 54" ()O IS CODE :::.:: ------------------------------------------------------------------~-----.. »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ======~================================================================== UPSTFi:EAM EL.E\/(..\T ION ::: ::::;75. 00 DD~~NSTRE{~t"1 EL.I:;:~l..l(') T I ON ::: 365. QO STREET LENGTH (FEET) = 650.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -6.89 STREET FLOWDEPTH(FEET) = .33 HALFSTREET FLOODWIDTH(FEET) = 10.20 AVERAGE FLOW VELOCITYIFEET/SEC.) = 2.98 PRODUCT OF DEPTH&VELOCITY = .98 STREETFLOW TRAVELTIME(MIN) = 3.64 TC(MIN) = 11.94 50 YEAR RAINFALL INTENSITY (INCH/HOUR) = 3.607 BOIl.... CU~SSIFICATIDN IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 BUB AREA AREA(ACRES) = 6.50 SUBAREA RUNOFFCCFS) -12.89 SUMMED AREACACRES) = 6.70 TOTAL ~UNOFF(CFS) -13.40 END OF SUBAREA STREETFLOW HYDRAUL.ICS1 DEPTH (FEET) = .40 HALFSTREET FLOODWIDTH(FE~T) -13.51 FLOW VELOCITY(FEET/SEC.) = 3.45 DEPTH*VELOCITY = 1,,37 *~**************************************************************~*******. FLOW PROCESS FROM NODE 54.00 TO NODE 55.00 1S CODE = 4 -----------------~-------------------------------------------------~----. »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING U8ER-SPEtlFIED PIPESIZE««< , . • • I ikl::' i I"'l uF I:; UJv·J 1 N 1 Ei. (l 1 hlCH 1:-':1. F~'f:_ I b 1''+ n 4-:I. NCHEb PIPEFLOW VELOCITY(FEET/SEC.) = 8.8 UPSTREAM NODE ELEVATION = 365.00 DOWNSTREAM NODE ELEVATION = 364.00 FLOWLENGTH(FEET) = 50.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(n~CH' = 18.00 NUMBER OF PIPES - PIPEFLOW THRU 8UBAREA(CFS) -13.40 TRAVEL TIME(MIN.) = .09 TC(MIN.) = 12.03 ************************************************************************~ FLOW PROCESS FROM NODE ~54. 00 TO NODE 55.00 IS CODE ::: »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< 1 ===================================================~===============:====: CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) = 12.03 RAINFALL INTENSITY (INCH./HOUR) = 3.59 TOTAL STREAM AREA (ACRES) = 6.70 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 13.40 CONFLUENCE INFORMATION~ STREAM RUNOFF TIME INTENSITY NUI'1J3E:R (CFS) (t1 IN.) ( INCH/HOUR) , , ------------------------------------------------------------------------- 1 19. 09 1 1 . 51 ~::. . 694 ::':: 13. 40 1:;:: • ():3 ":r '-.~ . ~::';E:Ct RAINFALL-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR 2 9T~EAMS VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: ::::'2.10 31.9t.j· COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) = 32.10 TIMECMINUTES) -11.506 TOTAL AREA (ACRES) = 15.70 ************************************************************************. FLOW PROCESS FROM NODE ~.5~'S. 00 TO NODE 13~::'. 00 IS CDDE ::: 4 ------------------------------------------------------------------------_. , . »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< =====================================================~==~=====~====~====: DEPTH OF FLOW IN 36.0 .INCH PIPE IS 10.1 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 19.7 UPSTREAM NODE ELEVATION = 365.00 DOWNSTREAM NODE ELEVATION = 333.00 FLDWLENGTH(FEET) = 350.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES - 1 PIPEFLOW THRU SUBAREA(CFS) -32.10 TRAVEL TIME(MIN.) = .30 TCCMIN.) ~ 11.80 ************************************************************************. FLOW PROCESS FROM NODE 55.00 TO NODE 133.·00 IS CODE = 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ========================================================================: CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE~ TIME OF CONCENTRATION (MINUTES) = 11.80 RAINFALL INTENSITY (INCH./HOUR) = 3.63 TOTAL STREAM AREA (ACRES) = 15.70 TOTAL STREAM RUNOFF (CFS) AT CDNFLUENCE = 32.10 • • I FLOW PROCESS FROM NODE 1 ~~;O. 00 ''1' D NDDE 1 ~$:I. • 00 I S CODE:. ::: -----------------------------------------------------------------------_. »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< =======================================================~================: SO I l. CLJ1E;B I F I C~fn ON IE:) "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA Fl.OW-LENGTH(FEET) -100.00 UPSTREAM ELEVATIDN = 376.00 DOWNSTREAM El.EVATION = 374.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINU1~S) -8.299 50 YEAR RAINFALL INTENSITY (INCH/HOUR) = 4.561 SUBAREA RUNOFF(CFS) -.50 TOTAL AREA(ACRES) = .20 TOTAL RUNOFF (CFS) -.50 ************************************************************************. FLOW PROCESS FROM NODE 131.00 TO NODE 132.00 IS CODE = 6 -----------------------------------------------------------------------_. »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ===========~================================================:==========:: UPSTREAM ELEVATION = 374.00 DOWNSTREAM ELEVATION = 333.00 ~::.n~EET LENGTH (FEET):::: 600. 00 CUf-i:D I···IE I GTH ( I I\IC I···! EE; ) ,--~ 6" ~3"rREE"T' Hr.:lLF~o,J I Irni (FEET) = 2B. 00 STHEET CHClSSF (=iLl ... (DEC I N(:iL) .--. 0200 SPECIFIED NUMBER OF HALFSTREETSCARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -7.02 STREET FLOWDEPTHCFEET) = .28 HAl.FSTREET FLOODWIDTH(FEET) = 7.71 AVERAGE FLOW VELDCITYCFEET/SEC.) -4.92 PRODUCT OF DEPTH&VEl.OCITY = 1.38 STREETFl.OW TRAVELTIMECMIN) == 2.03 TC(MIN) = 10.33 50 YEAR RAINFALL INTENSITY (INCH/HOUR) = 3.960 BOIl.... CI....f~ISBIFIC{::lTIOI\I IS "D" SINGl.E FAMILY DEVELOPMENT RUNO~F COEFFICIENT = .5500 SUBAREA AREA(ACRES) = 5.90 SUBAREA RUNOFF (CFS) -12.85 SUMMED AREA (ACRES) = 6.10 TOTAL RUNOFF (CFS) -13.35 END OF SUBAREA STREETFl.OW HYDRAULltS: DEPTH (FEET) = .33 HALFSTREET FLOODWIDTH(FEET) -10.20 FLOW VELDCITY(FEET/SEC.) = 5.77 DEPTH*VELOCITY = 1.90 ************************************************************************1 FLOW PROCESS FROM NODE 1. :32. 00 TO NODE 1~;:;3. 00 IS CODE :::= Lf. -------------------------------------------------------------~-----------»»>COMPUTE PIPEFLOW TRAVELTIME THRU SUDAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ========================================================================: DEPTH OF FLOW IN 18.0 INCH PIPE IS 10.2 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 12.9 UPSTREAM NODE ELEVATION = 333.00 DOWNSTREAM NODE ELEVATION = 331.00 FLOWLENGTH{FEET) = 40.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 18.00 NUMB~R OF PIPEB 1 PIPEFLOW THRU SUBAREA(CFS) -13.35 TRAVEl. TIMECMIN.) = .05 TC(MIN.) = 10.38 ************************************************************************! FLOW PROCESS FROM NODE :I. ~~:'2. 00 TO NDDE '133.00 IS CODE = 1 , ------------------------------------------------------------------~-~---. »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND cdMPUTE VARIOUS CONFLUENCED STREAM VALUES««< ===================~====================================================: • • I RAINFALL INTENSITY (INCH./HOUR) = 3.95 TOTAL STREAM AREA (ACRES) = 6.10 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUt'1BEH (CFS) (1'1 H-l.) ( H-.lCH / HOUR) 1 :32. 10 1 1 80 ..... 6:54 . .... f • ~::~ 1~; n :3!5 10. :3El :2:: " t;'.l.l7 RAINFALL-INTENSITY-RATIO CONFLUENCE FORMULA USED ~OR 2 STREAMS VARIOUS CONFLUENCED HUNOFF VALUES ARE AS FOLLOWS~ 42.90 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) = 44.39 TIME(MINUTES) -11.802 TOTAL AREA(ACRES) = 21.80 ************************************************************************~ FLOW PROCESS FROM NODE 133.00 TO NODE 59.00 IS COD£ = 4 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ========================================================================: PIPEFLOW VELOCITY(FEET/SEC.) = 14.1 UPSTREAM NODE ELEVATION = 331.00 DOWNSTREAM NODE ELEVATION = 315.00 FLOW LENGTH (FEET) = 450.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREA(CFS) -44.39 TRAVEL TIME(MIN.) = .53 TC(MIN.) = 12.33 1. ************************************************************************4 FLOW PROCESS FROM NODE 133.00 TO NODE 59.00 IS CODE = 1 ---------------------------------------------------------------~--------. »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUE~~E««< ====~=============~====================~======~=========~===============. CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRAtION(MINUTES) = 12.33 RAINFALL INTENSITY (INCH.!HOUR) = 3.53 TOTAL STREAM AREA (ACRES) = 21.80 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 44.39 ************************************************************************~ FLOW PROCESS FROM NODE 56.00 TO NODE 57.00 IS CODE = 2 »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ===============~==============================================~=========: SOIL. CL...ASE)IFICf~TION IS "0" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH (FEET) -100.00 UPSTREAM ELEVATION = 351.00 DOWNSTREAM ELEVATION = 349.00 ELEVATION DIFFERENCE = 2.00 URB{~N SUB~:)REA OVERLAND TIt'IE OF FLDvJ <I"'IINUTES) .... B.299 50 YEAR RAINFALL INTENSITYCINCH/HOUR) = 4.561 SUBAREA RUNOFFCCFS) -.50 TOTAL AREA (ACRES) = .20 TOTAL RUNOFFCCFS) -.50 I **************************************************************~*********. FLOW PROCESS FROM NdDE ~57 .00 TO NODE ~'58. 00 I S CODE :.::: • • I »»>COMPUTE Sl·REETFLOW TRAVELTIME THRU SUBAREA««< ================================================================== UPSTREAM ELEVATION = 359.00 DOWNST~EAM ELEVATION = 315.01 STREET LENGTH(FEET) = 1000.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALL(DECIMAL) -~020 SPECIFIED NUMBER OF HALF STREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -6.61 STREET FLOWDEPTH(FEET) = .30 HALFSTREET FLOODWIDTH(FEET) = 8.54 AVERAGE FLOW VELOCITY(FEET/SEC.) -3.90 PRODUCT OF DEPTH&VELOCITY = 1.16 STREET FLOW TRAVELTIME(MIN) = 4.27 TC(MIN) = 12.57 50 YEAR RAINFALL INTENSITY (INCH/HOUR) = 3.489 SOIL CL..ASSIFIC(")"rION IS 111)11 SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA (ACRES) = 6.10 SUBAREA RUNOFF(CFS) = 11.7:1. SUMMED AREA (ACRES) = 6.30 TOTAL RUNOFF (CFS) -12.21 END OF SUBAREA STREET FLOW HYDRAULICS: DEPTH (FEET) = .35 HALFSTREET FLOoDWIDTH(FEET) = l1L02 FLOL'J \,'ELOC ITt' (FEET / SEC.) = 4-. ~58 DEPTH-Y,-\-.lELDC I TY =" 1 . 59 **********************************************************************~ FLDW PROCESS FROM NODE 58.00 TO NODE 59.00 IS CObE = ·4 -----------------------------------------------------------------------»»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE«.«< ======================================================================= DEPTH OF FLOW IN 24.0 INCH PIPE IS 10.1 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 9.7 UPSTREAM NODE ELEVATION = 322.00 DOWNSTREAM NODE ELEVATION = 321.00 FLDWLENGTH(FEET) = 40.00 NANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREA(CFS) -12.21 TRAVEL TIME(MIN.) = .07 TC(MIN.) = 12.64 :I. ***********************************************************************. FLOW PROCESS FROM NODE 58.00 TO NODE 59.00 IS CODE = 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ==================================================================~====: . CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATIONCMINUTES) = 12.64 RAINFALL INTENSITY (INCH./HOUR) = 3.48 TOTAL STREAM AREA (ACRES) = 6.30 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 12.21 ***********************************************************************. ~LOW PROCESS FROM NODE (:;0. 00 TO NODE: 6:l.00 IS CODE =0 _ .. --..... --_ ............. _ ........ _-....... - -... ---... _._-_ .......... --.......... ---................................. ---.. --..... _. _. __ ..... _.--.. _ ............ -~ ............................ _ •• -.......... -_ ....... -.. ~ .... !-.......... _..----........ -'!"-_. »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< =======================================================================, SOIL CLASSIFICf-HIDN IS "DII SI.NBlE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL.. SUBAREA FLDW-LENGTHCFEET) -100.00 UPSTREAM ELEVATION = 349.00 DOWNSTREAM ELEVATION = 347.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW (MINUTES) - ~:.;(l YEtiH HA I NF t:~LL I t'·.ITEhlf~: I TY ( ! NCHI (-·1 OU f;: ) -_. I.{-. ~;i6 t SUBAREA RUNOFF (CFS}· -.50 • '. I ******~***************************************************************** FLOW PROCESS FROM NODE 61,,00 TO NODE »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ======================================================================== UPSTREAM ELEVATION = 347.00 DOWNSTREAM ELEVATION = :31£-3" 00 STREET LENGTHCFEET) = 950.00 CURB HEIGTH(INCHES) ::::: 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALL(DECIMAL) - SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) - 6. O~5 STREET FLoWDEPTH(FEET) = .25 HALFSTREET FLOODWIDTH(FEET) = AVERAGE FLOW VELOCITYCFEET/SEC.) - PRODUCT OF DEPTH&VELoCITY = STREETFLoW TRAVELTIMECMIN) = 5.73 TC (~'IIt\l) :::: 50 VEAG:' RAINF,c)LL INTENSIT\' (INCI'1/\'-IDUm ::::: 3.251 SOIL CL~ISSIFIC~rnON IS "D" 14. O~:. SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 :2" 68 SUBAREA AREA(ACRES) = 2.30 SUBAREA RUNOFF(CFS) -4.11 mJI'1I'iEI) (.:)HE?-'-l (ACRES) =-" 2. :-50 TOT (':)L r':;UNDFF'" (CF~3) --4 u 61 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET)::::: .28 HALFSTREET FLDODWIDTH(FEET) -7.71 FLOW VELOCITY(FEET/SEC.) = 3.24 DEPTH*VELOCITY = .91 .0200 ***********************************************************************~ FLOW PROCESS FROM NODE 62. 00 to I'-,IODE !;59. 00 I S CODE !::! »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< 4 ========:::::======================================================:::::======== DEPTH OF FLOW IN 18.0 INCH PIPE IS 6.3 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 8.4 UF'S'l,RE?"~r1 t'~fJI)I::: ELE:\JAT I Ol~~:-.:: 32:;::. (H) DOWNSTREAM NODE ELEVATION = 321.00 FLOWLENGTH(FEET) = 30.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES -1 PIPEFLOW THRU SUBAREACCFS) -4.61 TRAVEL TIME(MIN.) = .06 TC(MIN.) = 14.09 FLOW PROCESS FROM NODE 62. 00 TOI\IODE ~59 • 00 I S CODE :::! 1. ----------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CDNFLUENCED STREAM VALUES««< ===========~=========================================~================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATIONCMINUTES) = 14.09 RAINFALL INTENSITY (INCH./HOUR) = 3,,24 TOTAL STREAM AREA (ACRES) = 2.50 TOTAL STREAM HUNOFFCCFS) AT CONFLUENCE = 4,,61 CONFLUENCE INFORMATIoN~ STREAM RUNOFF TIME INTENSITY 1\/l.Wlm::p (eFS) (t"1 IN.) ( I NCH I HOt..lR) 1 44. ~:'J:y 1.~? JI ~:'3 3. ~5~.::.~2 ,-~ .s::" 1 :::~ n 21 12. 64 3u 477 :~:; A~~ IS 61 14. c'o ) ! --=!' ._1", :;~ 1.~:2 • • I 60.64 60.20 56.74 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) = 60.64 TIME(MINUTES) -12.333 TOTAL AREA(ACRES) = 30.60 ********************************************************************** FLOW PROCESS FROM NODE 59.00 TO NODE 118.00 IS CODE = 4' »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ==~=================================================================== DEPTH OF FLOW IN 36.0 INCH PIPE IS 12.9 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 26.6 UPSTREAM NODE ELEVATION = 321.00 DOWNSTREAM NODE ELEVATION = 312.00 FLOWLENGTH(FEET) = 70.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES -1 PIPEFLOW THRU SUBAREACCFS) -60.64 TRAVEL TIME(MIN.) = .04 TC(MIN.) = 12.38 *********************************************************************** FLOW PROCESS FROM NODE 59.00 TO NODE 118.00 IS CODE = 1 -----------------------------------------------------~----------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ======================================================================= CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 AREi TIME OF CONCENTRATIONCMINUTES) = 12.38 RAINFALL INTENSITY CINCH./HOUR) = ~.52 TOTAL STREAM AR~A (ACRES) = 30.60 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 60.64 ***********************************************************************. FLOW PROCESS FROM NODE 110.00 TO NODE 111.00 IS CODE = 2 ------------------------------------------------------~----------------. »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ======================================================================= SOIL CLI~SBIFIC('HICJN H3 liD" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) -100.00 UPSTREAM ELEVATION = 35:1..00 DDl"'NSTI::;:E(~M ELEl·./I'4 T I Ol\~"-:: :::'4"7 .. 00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) -8.299 50 YEAR RAINFALL INTENSITYCINCH/HOUR) = 4.561 SUBAREA RUNOFF(CFS) -.50 TOTAL AREACACRES) = .20 TOTAL RUNOFF(CFS) ~ .50 *********************************************************************** FLOW PROCESS FROM NODE 11. 1 • 00 TO I\IODE :1.12.00 IS CODE :::: ------------------------------------------------------------~-----~---- »»>COMPUTE STREETFLOW TRAVELTIME THRU 6UBAREA««< ======================================================================= UPSTREAM ELEVATION = 349.00 DOWNSTREAM ELEVATION = 330.00 STREET LENGTH(FEET) = 750.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOF~ = 2 **TRAVELTTME COMPUTED USING MEAN FLOW(CFS) -2.70 STREET FLOWDEPTHCFEET) = .25 HALF STREET FLOODWIDTHCFEET) = 6.05 AVERAGE FLOW VELOCITY(FEET/SEG.) -2.78 PRODUCT OF tiEPTH&VELOCITV = .69 • • I 50 YEAR RAINFALL INTENSITY(INCH/HOUR) ::::: 3.450 SOIL CLASSIFICf-HION IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT::::: .5500 SUBAREA AREA(ACRES)::::: 2.30 SUBAR~A RUNOFF(CFS) -4.36 SUt'1MED f.:)REA (ACRES) = 2. 50 TOT{-,~L RUI\IOFF (CFS) ::::: 4.07 END OF SUBAREA STREET FLOW HYDRAULICS: DEPTH (FEET) ::::: .28 HALF STREET FLOODWIDTHCFEET) = 7.71 FLOW VELOCITYCFEET/SEC.) = 3.41 DEPTH*VELOCITY::::: .96 ***********************************************************************' FLOW PROCESS FROM NODE 112.00 TO NODE 118~OO IS CODE::::: 4 -------------~---------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ==:::::=::::::::::==:::::==:::::=:::::=======================~=========::::::::::===================~=:::::= DEPTH OF FLOW IN 18.0 INCH PIPE IS 4.3 INCHES PIPEFLOW VELOCtTYCFEET/SEC.j = 15.0 UPSTREAM NODE ELEVATION = 330.00 DOWNSTREAM NODE ELEVATION::::: 314.00 FLOWLENGTHCFEET) = 100.00 MANNINGS N::::: .013 GIVEN PIPE DIAMETER(INCH) = lB.OO NUMBER OF PIPES -1 PIPEFLOW THRU SUBAREA(CFS) -4.87 TRAVEL TIME(MIN.) == .11 TC(MIN.)::::: 12.90 ***********************************************************************~ FLOW PROCESS FROM NODE 1.12.00 TO NODE 1. lB. 00 IS CODE ~:~ 1 -------------------------------------------------------------~---------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ===============================:::::========================================= CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE~ TIME OF CONCENTRATION (MINUTES) = 12.90 RAINFALL INTENSITY (INCH./HDUR) = 3.43 TOTAL STREAM AREA (ACRES) = 2.50 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 4.B7 FLOW PROCESS FROM NODE 117.DO IS CODE = »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ======================================:::::================================ SOIL.. CLASSIFICf.HION IS "D" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8500 INITIAL SUBAREA FLOW-LENGTH(FEET) -650.00 UPSTREAM ELEVATION = 340.00 DOWNSTREAM ELEVATION = 319.00 ELEVATION DIFFERENCE = 21.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) -9.439 *CAUTION: SUBAREA SLOPE EXCEEDS COUNTY NOMOGRAPH DEFINITION. EXTRAPOLATION OF NOMOGRAPH USED~ *CAUTION~ SUBAREA FLOWLENGTH EXCEEDS COUNTY NOMOGRAPH DEFINITION. EXTRAPOLATION OF NOMOGRAPH USED. 50 YEAR RAINFALL IN~ENSITY(INCH/HQUR) = 4.197 SUBAREA RUNOFF (CFS) -2.85 TOTAL AREA (ACRES) -.80 TOTAL.. RUNOFF(CFS) -2.85 ~'l. * -Xo ~~ * 1!' ~~. -l('1!' -l(' -j(. ~* *. * ~,. -x-* -l{. * -i{--:~. -x· ,*. -)!. "~. ~~, 7l' ~~. "*. ,,* oM· -)!. 1!' ,*. * * -)(. * ~'l--* "k * * "Ii· "*. -ii. oM· ~\! . .;o(. -)( •• ;~. ,*. "Ii· * -ll' -ll' .* -)~ ':)(-1!' 'oJ(-")(, -i{--x'l* -i{-", •• )(. -x· :Ii' FLOW PROCESS FROM NODE 117.00 TO NODE 118.00 IS CODE = 4 >-:> > > >COt'lPUTE PI PEF'UJtIJ TI~?~I.,}EI.. .. T I t~1E Tl-·IRU !:3UBARE!!::){ <: -::: <: <: »»>USING USER~SPEtIFIED PIPESIZE««< • •• , DEPTH OF FLOW IN 18.0 INCH PIPE IS 4.2 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 9.2 UPSTREAM NODE ELEVATION = 319.00 DOWNSTREAM NODE ELEVATION = 314.00 FLOWLENGTHCFEET) = 80.00 MANNINGS N = .013 GIVEN PIPE DIAMETERCINCH) = 18.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREA(CFS) -2.85 TRAVEL TIME(MIN.) = .15 TC(MIN~) = 9.58 1. **********************************************************************. FLOW PROCESS FROM NODE 117.00 TO NODE 118.00 IS COD~ = 1. ------------------------------------------------~---------------------»»>DESIGNATE II\IDEPENDEI,IT STF';:EA~1 FOR CONI::-LUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< =====================================================~================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE~ TIME OF CONCENTRATION (MINUTES) = 9.58 RAINFALL INTENSITY (INCH./HOUR) = 4.16 TOTAL STREAM AREA (ACRES) = .80 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 2~85 CONFLUENCE INFORMATION~ STREAM RUNOFF TIME INTENSITY NUI'1BER (CFS) (i'"lIH.) CINCH/HOUR) ----------------------------------------------------------------------- 1 60. 64 :l ::~" 3$3 "t .... 1. 524· ~:;:': LI· « 8-7 l 1.211 90 .3u !~.:3; 1 ":!' ::~ n pec' ':::' 58 4· • 1.56 .... 1 _''l..J ! . RAINFALL-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 67.80 66.26 58.29 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWSrr RUNOFF (CFS) = 67.80 TIME(MINUTES) -12.376 TOTAL AREACACRES) = 33.90 ***********************************************************************~ FLOW PROCESS FROM NODE 118.00 TO NODE 122.00 IS CODE = S ---------------------------------_._---------------------~--------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< =========================~==================~~=~==~===========~========: 50 YEAR RAINFALL INTEHSITY(INCH/HOUR) = 3.524 ~30Il.. .. CLnSSIFICATIClN IS "0" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA nREACACRES) -2.40 SUBAREA RUNOFF (CFS) -4~65 TOTAL AREA(ACRES) -36.30 TOTAL RUNDFF(CFS) = 72.45 TC(MIN) = 12.38 ***********************************************************************~ FLOW PROCESS FROM NODE 122.00 TO NODE 66.00 IS CODE = 4 . ----------------------------------------------------------------------~-. »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ==============~================~=======================================, DEPTH OF FLOW IN 48.0 INCH PIPE IS 25.3 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 10.8 UPSTREAM NODE ELEVATION = 288.00 DOWNSTREAM NODE ELEVATION = 283.00 FLOWLENGTHCFEET) = 500.00 MANNINGS N -.013 GIVEN PIPE DIAMETER(INCH) = 48.00 NUMBER OF PIPES - 1 PIPEFLOW THRU SUBAREA (CFS) -72.45 TRAVEL TIME(MIN.) ~ .77 TCCMIN.) = 13.15 • • I ***********************************************************************~ FLOW PROCESS FROM NODE 122.00 TO NODE 66.00 IS CODE = 1 --------------------~--------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ==============~======================================================~== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) = 13.15 RAINFALL INTENSITY (INCH./HOUR) = 3.39 TOTAL STREAM AREA (ACRES) = 36.30 TOTAL STREAM RUNOFFCCFS) AT CONFLUENCE = 72.45 .j(-*.~.* * ~ .. l(-.y., .y.,.* * **.y.,.lE-.* *.*.lE-* .j(,.;','* *'*'r<-*.* -1(--)" * t.;-.j(-* * **'*'J!-'* t.;_·lt * .)(-.J(-·i~·*·lH(··it·lt·* ·it·l(-·lIe·* .)(--)(-.J(-·*·*·*·it·* * .y,_.* -j(-·ll· * -l\~·il FLOW PROCESS FROM NODE 67.00 TO NODE 68.00 IS CODE = 2 ------------------------------------------------------------------------ »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ::::::::::===::-.::=:::::::::::====::::::::::::===::::::::::::::::::::::::.:::::::.::::::::=:::::::::::::::::::::::::::.-:::::::::::::::::::;::::::::::::::::::::::::::::::::::::::.-:::::-.::::::::::::::::::::::==-::::::::::::=::::=::::::::::::::::::::::::::::::::::::::::.::::: SOIL. CU4SSIFICATIDN IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFIcI~NT = .5500 INITIAL SUBAREA FLDW-LENGTH(FEET) -100.00 UPSTREAM ELEVATION = 291.00 DOWNSTREAM ELEVATION = 289.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLDW(MINUTES) -8.299 50 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.561 SUBAREA RUNOFF (CFS) -.50 TOTAL AREA (ACRES) = .20 TOTAL RUNOFF(CFS) -.50 ***********************************************************************~ FLOW PROCESS FROM NODE 68.00 TO NODE 66.00 IS CbDE = 6 »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< =======================================================================: UPSTREAM ELEVATION = 290.00 DOWNSTREAM ELEVATION = 282.00 STREET LENGTH (FEET) = 800.00 CURB HEIGTH(INCHES) = 6. STREET Hf."~LFl·J I DTH (FEET) ~::: 28. 00 STHEET CF~Ot3SF (.:)1..1... (DEC I t"1AL) ..... . 0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -3.66 STREET FLOWDEPTHCFEET) = .30 HALFSTREET FLOODWIDTHCFEET) = 8.54 AVERAGE FLOW VELOCITYCFEET/SEC.) -2.16 PRODUCT OF DEPTH&VELOCITY = .64 STREETFLDW TRAVELTIME (MIN) = 6.18 TC(MIN) = 14.47 50 YEAR RAINFALL INTENSITY (INCH/HOUR) = 3.186 t~;O I I... CLPI~;S) I F I C{:iT I ON I f.:) II D II SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5~00 SUBAREA AREA(ACRES) = 3.60 SUBAREA RUNOFF(CFS) -6.31 SUMMED AREA (ACRES) = 3.80 TOTAL RUNOFF(CFS) = 6.81 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .35 HALFSTREET FLOODWIDTH(FEET) = 11.02 FLOW VELDCITY(FEET/SEC.) = 2.55 DEPTH*VELOCITY = .89 ********************************************************************** FLOW PROCESS FROM NODE 6f.3. 00 TO NODE 66. 00 I S CDI:)[~~ = 1 ...... »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< . ::: :".:::::.-::::::::::;:::::=:-.:::::::=:::::::::::::::::::::::::::::::::::::::: :::::::-.:::::-.:::::~::::::::: :::::::::::: :. .. .::::: ::::: !::: ==:::: =::::::::: ==::::::::: :".:::=:::::::::::: :::: ::::::::::::::::::;:::::::::.:::::::::: ::--":::::::: ::::-:::: :::: :::::::::: i::: ::::::::::::::. =::::: CDNFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE~ TIME OF CONCENTRATION(MINUTES) = 14.47 RAINFALL INTENSITY (INCH./HOUR) = 3.19 TOTAL STREAM AREA (~CREB) = 3.80 '~. '. • I *********************************************************************~ FLO~ PROCESS FROM NODE 63.00 TO NODE 64. 00 I S CODE "-':: :>:> > > >R(4T I Dt\lAL t1ETI'-IOD I NIT I ('~L aUF3?W~EA ANAL ya I S< <: <: < < :::::;:::::::::::: :::::::::: :-.::::::::: ::::::::::::=:::= =:::::::::::::::::::::::::::::-.::::::: :::::::'.: :::: ::::: :::::::!!:::::::::: ::::::::::::::::::::::::::::: =::::::::::= == ::::::::: :::::::::::::::::::::: :.'t!!::::::::::::::.:::::: :::::::::-.::::::::::::::::::::::::-:::: ::::::::,::::: ::::~.: ::::: SOIL CLAaSIFIC('HION IS ItDII SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 I HIT I (.41... ~1UBAI;:F::('\ FLOllJ--LEJ'.Jf3TH (FEET) _.. 100. 00 UPSTREAM ELEVATION = 308.00 DOWNSTREAM ELEVATION = 306.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOWCMINUTES) -8.299 ~::.;O YEM~ F~AINF{,~U. INTENSITY'(INCH/HDI...IFO = 4.St:.l SUBAREA RUNOFF(CFS) -.50 TOTAL AREA (ACRES) = .20 TOTAL RUNOFF (CFS) -.50 **********************************************************************' FLOW PROCESS FROM NODE 64.00 TO NODE 65.00 IS CODE ~ 6 >:»»COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ======================================================================~ " UPSTREAM ELEVATION = 305.00 DOWNSTREAM ELEVATION = 282.00 STREET LENGTH (FEET) = 900.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTHCFEET) = 28.00 STREET CROSSFALLCDECIMAL) -.0100 SPEtIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -3.39 STREET FLOWDEPTH(FEET) = .26 HALFSTREET FLOODWIDTH(FEET) = 6.88 AVERAGE FLOW VELOCITYCFEET/SEC.) -2.86 PRODUCT OF DEPTH&VELOCITY = .76 STREETFLOW TRAV~LTIME(MIN) = 5.24 TC(MIN) = :1.3.54 50 YEAR RAINFALL INTENSITYCINCH/HOUR) = 3.326 SO I L CLASS I F I C{-,T I ON I ~'3 liD 11 SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICiENT = .5500 SUBAREA AREA(ACRES) = 3.10 SUBAREA RUNOFF(CFS) -5.67 SUMMED AREACACRES) ~ 3.30 TOTAL RUNOFF (CFS) -6.17 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTHCFEET) = .30 HALFSTREET FLOODWIDTHCFEET) -8.54 FLOW VELOCITY(FEET/SEC.) = 3.64 DEPTH*VELOCITY = 1.08 '*, * 1!' ,,~, * * -J\-* '*, 1!' * o'!!-,1(' 1!' ,,+ -ii' 'M' "J!' -il' -il' -il' -il' '1i' -j!' ,*. * .j!,.,* -x: ,Ii, ,,+ .;~ -j!' * ,Ii, "fl.' ,\I., ,'>(,,*. "k,*, ,;~, '*, 'M' 1!' ~~. 'f.~ 7!'-:!' ,;~, 1!' ,;~, 1!' * * ';'i' "l!' -i'l' * * ,,!, ,;~, -n' -)i' ,,1, ,;~, ,,* .-t~ ,1(' ,;~, -n" FLOW PROCESS FROM NODE 65.00 TO NODE 66.00 IS CODE = 4 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ===============================================================~======= DEPTH OF FLOW IN 18.0 INCH PIPE IS 8.9 INCHES PIPEFLOW VELOCITY(FEET/aEC.) = 7.1 UPSTREAM NODE ELEVATION = 283.00 DOWNSTREAM NODE ELEVATION = 282.00 FLOWLENGTH(FEET) = 60.00 MANNINGa N = .013 GIVEN PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREACCFS) -6.17 TRAVEL TIMECMIN.) = .14 TC(MIN.) -13~6B :I. I *********************************************************************** FLOW PROCESS FROM NODE 65.00 TO NODE 66.00 IS CODE = 1 ----------------------------------------------------------------~------ '> ':;. ':: '> >nr.:q I (:-::1\1(.\ "l-E T t'lnr.:'[':":!',IJJ" Eh!'l-qTf~:f:::\~~t"1 Ff')F~ f~OI\'f:~1 I Jf::::I .... lf~I::< <' -::'.;;' <' ••••... _1:"-....: .,.l-I'" _ .... 1::. l::. _, ..... ... ... ' ...... ;.) ....... 1 .J ........ _. W,'_ •••.• • • I =====~================================================================== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE~ TIME OF CONCENTRATION (MINUTES) = 13.68 r~A n.IF(":lU.. I NTENt3 I TV (I NCH" Il .. mUFn ::: :~" :50 TOTAL STREAM AREA (ACRES) = 3.30 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE - CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) 1-"7'? I .,:.. • 45 13. 1 c:: ,.' ~.::: d ~38'7'1 :~ 6. 81 14. 47 .. ... 18(.71 .:., . ~~:a 6. 17 1. ~:; II 68 ~:: 11 ~::'04 RAINFALL-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 84.87 80.86 83.36 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFFCCFS) = 84.87 TIME(MINUTES) -13.150 TOTAL AREA(ACRES) = 43.40 ***********************************************************************~ FLOW PROCESS FROM NODE 11''7.00 TO NODE 120. 00 I~-3 CODE ::: ------------------------------------------------------------------------ »»>RATIONAL METHOD INITIAL SUBAREA ANALVSIS««< ==========================================:================~============~ SOIL CU~SSIFIC{nIOI\I IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) -100.00 UPSTREAM ELEVATION = 309.00 DOWNSTREAM ELEVATION = 306.00 ELEVATION DIFFERENCE ~ 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW (MINUTES) -8.2~9 50 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.561 SUBAREA RUNOFFCCFS) -.50 TOTAL AREA(ACRES) = .20 TOTAL RUNOFF (CFS) -.50 *********************************************************************** FLOW PROCESS FROM NODE 120 .. 00 TO hlCJDr:: 1. :~~ 1 .. 00 I S r~DDE ::: -----------------------------------------------------------------------. - »»>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA««< ===========~==========================================~===============~ UPSTREAM ELEVATION = 308.00 DOWNStREAM ELEVATION = 288.00 STREET LENGTH (FEET) = 450.00 CURB HEIGTHCINCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -3.11 STREET FLOWDEPTHCFEET) = .23 HALFSTREET FLOODWIDTH(FEET) = 5.23 AVERAGE FLOW VELOCITY(FEET/SEC.) -3.97 PRODUCT OF DEPTH&VELDCITV = .92 STREETFLOW TRAVELTIME(MIN) = 1.89 TC(MIN) = 10.19 50 YEAR RAINFALL INTENSITY (INCH/HOUR) = 3.996 SDIL CLAB~3IFICATION I~3 "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREACACRES) = 2.40 SUBAREA RUNOFF(CFS) -5.27 . SUMMED AREA(ACRES) = 2.60 TOTAL RUNOFF (CFS) = 5.78 END OF SUBAREA STREET FLOW HYDRAULICS~ DEPTH (FEET) = .28 HALFSTREET FLOODWIDTH(FEET) = 7.71 FLOl·J I')ELDC I TV (FEET.I ~3EC.) w.w 4-. 05 DEPTH*VEUJC I TY:::: :t • 14 • • I *********************************************************************~ FLOW PROCESS FROM NODE 69.00 TO l'mDE 70. 00 I S CODE """ ----------------------------------------------------------------------»»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ==================~=================================================== SOIL CLASSIFICATION IS 110 11 SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTHCFEET) -100.00 UPSTREAM ELEVATION = 351.00 DOWNSTREAM ELEVATION = 349.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLoWCMINUTES) -8.299 50 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.561 SUBAREA RUNOFF(CFS) -.50 TOTAL AREA(ACRES) = .20 TOTAL RUNOFF (CFS) -.50 ********************************************************************** FLOW PROCESS FROM NODE 70.00 TO NODE 71 . i)(j I S-; CODE ::::: 6 _. __ .. __ ....... __ ... _-_ ....... _ .. _ .. __ ...... _-_._ .. __ .. _ .. __ .... _ .. _ .. _ .. -_ .. _ ... ---_ ......... _ ............ _-_._ ...... _-.. _ ....... -........ -_ .... ---_ .. _-----_ ............ _--'._-_ .......... . »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< =============================~========================~================ UPSTF~E(.~t1 ELEV/n'ION::: ~:'49. 00 Dm<Jt'"IBTRE{'WI EL .. EW:'TIDt'l :.::: 27'7.00 STREET LENGTH (FEET) = 1000.00 CURB HEIGTHCINCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -6.80 STREET FLOWDEPTH(FEET) = .28 HALFSTREET FLOODWIDTH(FEET) = 7.71 AVERAGE FLOW VELOCITYCFEET/SEC.) -4.77 PRODUCT OF DEPTH&VELOCITY = 1.34 STREETFLOWTRAVELTIME(MIN) = 3.49 TC(MIN) = 11.79 50 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.636 SOIL CLASSIFICATION IS 110" El I NGL.E F {~t1 I L. Y DEVEL..OF't'IENT HUNOFF COEFF I C lENT ::: . ~;::;oo SUBAREA AREA(ACRES) = 6.10 SUBAREA RUNOFF(CFS) -12.20 SUMMED AREA(ACRES) = 6.30 TOTAL RUNOFF(CFS) -12.70 END OF SUBAREA STREETFLOW HYD~AULICS: DEPTH (FEET) = .31 HALFSTRtET FLOODWIDTHCFEET) -9.37 FLOW VELOtITY(FEET/SEC.) = 6.38 DEPTH*VELOCITY = 2.00 ***********************************************************************~ FLOW PROCESS FROM NODE 71.00 TO NODE 78.00 IS CODE = 4 ------------------------------------------------------------------------> > > > >COI'1PUTE PI PEFL.DL!J TR(~lv'ELT II'-IE THHU SUB('~F:Er-'I< < <: < <: :»> > >USI NG USEH-~:;PECI F I ED PIPES I ZE< <: <: <: <: =================~=====================================================:, DEPTH OF FLOW IN 24.0 INCH PIPE IS 9.2 INCHES PIPEFLoW VELOCITY(FEET/SEC.) = 11.4 UPSTREAM NODE ELEVATIO~ = 277.00 DOWNST~EAM NODE ELEVATION = 274.00 FLOWLENGTHCF~ET) = 80.00· MANNINGS N = .013 GIVEN PIPE DIAMETERCINCH) = 24.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREACCFS) -12.70 TRAVEL TIME(MIN.) = .12 TCCMIN.) = 11.91 :1. *********************************************************************** . . FLOW PROCESS FROM NODE 71.00 TO NODE 78.00 IS CODE = L -----------------------------------------------------------------------»»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ====================================================~~================= CONFUJENCE VAUJES U~ED FOR INDEPENDENT STREAM 1 ARE I '.' • I RAINFALL INTENSITY (INCH./HOUR) = 3.61 TOTAL STREAM AREA (ACRES) = 6.30 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = ************************************************************************, FLOW PROCESS FROM NODE 72.00 TO NODE 73.00 IS CODE = 2 ------------------------------------------------------------------------»»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ========~==========================================================ti==== BOIL CU~m3IFICATIc)N IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL BUBAREA FLOW-LENGTHCFEET) -100.00 UPSTREAM ELEVATION = 325.00 DOWNBTREAM ELEVATION = 323.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW (MINUTES) - 50 YEAR RAINFALL INTENSITY (INCH/HOUR) ~ 4.561 SUBAREA RUNOFF(CFS) -.50 TOTAL AREACACRES) = TOTAL RUNOFFCCFS) -• 5() ************************************************************************ FLOW PROCESS FROM NODE 73.00 TO NODE 74.00 IS CODE = 6 ------------------------------------------------------------------------»»>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA««< ==========~========================================================~==== UPSTREAM ELEVATION = 323.00 DOWNSTREAM ELEVATION = 275~00 STREET LENGTHCFEET) = 850.00 CURB HEIGTHCINCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETB CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -3.20 STREET FLOWDEPTHCFEET) = .23 HALFSTREET FLOODWIDTHCFEET) = 5.23 AVERAGE FLOW VELOCITY(FEET/BEC.) -4.08 PRODUCT OF DEPTH&VELOCITY = .94 STREETFLOW TRAVELTIMECMIN) = 3.47 TC(MIN) = 11.77 50 YEAR RAINFALL INTENSITYCINCH/HOUR) = 3.641 SOIL .. CLABBIFICATION IS "D" SINGLE FAMILY DEVELOPMENT ~UNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES) ~ 2.70 SUBAREA RUNOFF(CFS) -5.41 SUMMED AREA (ACRES) = 2.90 TOTAL RUNOFF (CFS) -5.91 END OF SUBAREA BTREETFLOW HYDRAULICS: DEPTH (FEET) = .26 HAlFSTREET FLOODWIDTH(FEET) -6.88 FLOW VELOCITY(FEET/SEC.) = 4.99 ********************************************************************** FLOW PROCESS FROM NODE 74. 00 TO I\IODE 7&). 00 I S CODE: =::: »»>COMPUTE PIPEFLOW' TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< -------------------------------------------~------------------------------------------------------------------------------------------------DEPTH OF FLOW IN 18.0 INCH PIPE IS 8.3 INCHES PIPEFLOW VELOCITY(FEET/SEC.) ,= 7.5 UPSTREAM NODE ELEVATION = 275.00 DOWNSTREAM NODE ELEVATION = 274.00 FLOW LENGTH (FEET) = 50.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPEB - PIPEFLOW THRU SUBAREA (CFS) -5.91 TRAVEL TIME(MIN.) = .11 TC(MIN.) = 11.88 1 *********************************************************************~ • I ----------------------------------------------------------------------»»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««( ====================================================================== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE~ TIME OF CONCENTRATION (MINUTES) = 11.88 RAINFALL INTENSITY (INCH./HOUR) = 3.62 TOTAL STREAM AREA (ACRES) = 2.90 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 5.91 *****************************************************~**************** FLOW PROCESS FROM NODE 75.00 TO NODE 76.00 IS CODE = 2 »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< =======================================================~============== SO I L CL{iSS I F I C{-),"!" I ON IS" D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) -100.00 UPSTREAM ELEVATION = 319.00 DOWNSTREAM ELEVATION = 317.00 ELEVATION DIFFERENCE = 2.00 URBf.:il"'-I SUB,(,REf.l O'·..JEr':;:L.m,m T II'·1E OF FLmLJ (Ivl I NUTES)· --El. 29':,' 50 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.561 SUBAREA RUNOFFCCFS) -.50 TOTAL AREACACRES) -.20 TOTAL RUNOFFCCFS) -.50 *********************************************************************** FLOW PROCESS FROM NODE 71:.: ... 00 TO NDDE 77.00 IS CODE ::: »»>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA««< ============================~============~=============================~ UPSTREAM ELEVATION = 317.00 DOWNSTREAM ELEVATION = 278.00 STREET LENGTHCFEET) = 750.00 CURB HEIGtHCINCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALLCDECIMAl) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -1.79 STREET FLOWDEPTHCFEET) = .20 HALFSTREET FLOODW1DTH(FEET) = 3.57 AVERAGE FLOW VELOCITYCFEET/SEC.) -3.64 PRODUCT OF DEPTH&VELOCITY = .72 STREETFLOW TRAVELTIME(MIN) = 3.43 TCCMIN) = 11.73 50 YEAR RAINFALL INTENSITYCINCH/HoUR) = 3.649 SOIL CLASSIFIC{HIClN IS liD" BINGLE F (WI I L Y DE"/ELOPt"IENT FUJt\IOFF COEFF I C lENT "''" • ~:,:.i.~500 SUBAREA AREA(ACRES) = 1.30 SUBAREA RUNOFF(CFS) 2.61 SUMMED AREA(ACRES) = 1.50 TOTAL RUNOFF (CFS) -3.11 END OF SUBAREA STREETFLOW HYDRAULICS~ DEPTH (FEET) = .23 HALFSTREET FLOODWIDTHCFEET) -5.23 FLOW VELOCITY(FEET/StC.) = 3.97' DEPTH*VELOCITY -.92 *************************************************~********************** FLOW PRDCESS FROM NODE 77.00 TO NODE 78.00 IS CODE = 4 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««( »»>USING USER-SPECIFIED PIPESIZE««< ======================================================================== DEPTH OF FLOW IN 18.0 INCH PIPE IS 4.h INCHES . PIPEFLOW VELOCITY(FEET/SEC.) = 8.7 UPSTREAM NODE ELEVATION = 278.00 DOWNSTREAM NODE ELEVATION = 274.00 FlDWLENGTHCFEET) = 80 .. 00 MANNINGS N = .013 GIVEN PIPE DIAMETEplINCH) ~ 18.00 NUMBER OF PIPES -1 • I lRAVEL TIME(MIN.) = . 15 TC (t"1IN.) =: 11 r. 8D FLOW PROCESS FROM NODE T7.00 TO NODE "78. 00 I S com:: ::::: :1. ------------------------------------------------------------------------»»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STR~AM VALUES««< ===========================================~=====~====================== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION (MINUTES) ::::: 11.88 RAINFALL INTENSITY (INCH./HOUR)::::: 3.62 TOTAL STREAM AREA (ACRES) = 1.50 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE ~ 3.11 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUt1BER (CFS) (t'l IN.) ( I hlCH i HOUR) 1 1 ~21t 70 1 1 · tll 3. 613 ~:~ 5. 91 1 1 88 .,. 619 " · '_' rs ~$ ":r 11 1 :I, CE,':! "":: 61 E':l .... , . · .... /1 ... 1 '_'II: RAINFALL-INTENSITY-RATIO CONFLUENCE FonMULA USED FOR 3 STREAMS VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 21.71 21.70 21.70 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS~ RUNOFF (CFS) = 21.71 TIME(MINUTES) -11.908 TOTAL AREA (ACRES) ::::: 10.70 ************************************************************************ FLOW PROCESS FROM NODE 78.00 TO NODE 82.00 IS CODE::::: 4 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< =======================================================================: DEPTH OF FLOW IN 24.0 INCH PIPE IS 11.3 INCHES PIPEFLOW VELOCITY(FEET/SEC.)::::: 14.9 UPSTREAM NODE ELEVATION = 274.00 DOWNSTREAM NODE ELEVATION = 258.00 FLOWLENGTH(FEET) = 300.00 GIVEN PIPE DIAMETER CINCH) = PIPEFLOW THRU SUBAREA (CFS) - TH{'WEL "I" H1E (t1 II\t.) --" ~n NANNINGS N = .013 24.00 NUMBER OF PIPES - 21.71 TC(MIN.) = 12.24 1 **********************************************************************. FLOW PHOCESS FROM NODE 78.00 TO NODE 82.00 IS CODE = 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ====================================================================== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE~ TIME OF CONCENTRATIONCMINUTES) = 12.24 RAINFAU_ INTENSITY (INCH~/HOUR) =, 3.55 TOTAL ,STREAM AREA (ACRES) = 10.70 TOTm. STRE(,,~l"l I;:U\\IOFF (CFS) AT CONFUJENCE :::: :21.71 *********************************************************************~,:: 'FLOW PROCESS FHOM \\lODE 83.00 TO NODE 84.00 IS CODE:::: 2~ ----------------------------------------------------------------------»»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< =======================================================c============== SOIL CLASSIFICr.YrIClN IS lip" I '. I INITIAL SUBAREA FLOW-LENGTH(FEET) -100.00 UPSTREAM ELEVATION = 345.00 DOWNSTREAM ELEVATION = 343.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) - 50 YEAR RAINFAll INTENSITY(INCH/HOUR) = 4.561 SUBAREA RUNOFF(CFS) -.50 TOTAL AREA(ACRES) = .20 TOTAL RUNOFF (CFS) - Q t":,c::,c:> l...I:, .,:.. I I u5<) ********************************************************************** FLOW PROCESS FROM NODE B4.00 TO NODE B1.00 H3 CODE =:: (;:; »»>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA««< ===================================================~================== UPSTREAM ELEVATION = 343.00 DOWNSTREAM ELEVATION = 259.00 STREET LENGTH(FEET) = 1000.00 CURB HEIGTH(INCHES) = 6~ STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFAllCDECIMAl) = .0200 SPECIFIED NUMBER OF HAlFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FlOW(CFS) -6.56 STREET FlOWDEPTH(FEET) = .26 HALF STREET FLOODWIDTH(FEET) = 6.88 AVERAGE FLOW VElOCITY(FEET/SEC.) -5.54 PRODUCT OF DEPTH&VELOCITY = 1.46 STREET FLOW TRAVElTIMECMIN) = 3.01 TCCMIN) = 11.30 50 YEAR RAINFAll INTENSITY(INCH/HOUR) = 3.736 SOIL CU~SSIFIC{,)TION IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREACACRES) = 5.90 SUBAREA RUNOFF(CFS) - SUMMED AREA (ACRES) = 6.10 TOTAL RUNOFF(CFS) - END OF SUBAREA STREETFLOW HYDRAULICS: DEPTI'-j (FEET) ::: . ::::: 1 H{~LF~3TREET FlDOD(!,\ I DTH (FEET) -- FLOW VELOCITYCFEET/SEC.) = 6.34 DEPTH*VELOCITY = 1.99 ************************************************************************ FLOW PROCESS FROM NODE 81 • 00 TO t'mDE 82.00 IS CODE ~'!!! »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< =====================================================~==================: DEPTH OF ~LOW IN 18.0 INCH PIPE IS 11.2 INCHES PIPEFLOW VElOCITYCFEET/SEC.) = 10.9 UPSTREAM NODE ELEVATION = 259.00 DOWNSTREAM NODE ELEVATION = 258.00 FlDWLENGTHCFEET) = 30.00 MANNINGS N = .013 GIVEN PIPE DIAMETERCINCH) = 18.00 NUMBER OF PIPES -1 PIPEFlOW THRU SUBAREA(CFS) -12.63 TRAVEL T1ME(MIN.) = .05 TCCMIN.) = 11.35 ************************************************************************ FLOW PROCESS FROM NODE 81 .. (10 TO NODE 82.00 IS CODE !!!"" --------------------~---------------------------------------------------»»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ===========================================================~==~=========' CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) = 11.35 RAINFALL INTENSITY (INCH./HDUR) = 3.73" TOTAL STREAM AREA (ACRES) = 6.10 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 12.63 , • I »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ==============================================~============~=====~====== SOIL CLf.:)SBIFIC('YrION IS "0" SINGLE FAMILY DEVELOPMENT RUNOFF COEF~ICIENT = INITIAL BUBAREA FLOW-LENGTH(FEET) -100.00 UPSTREAM ELEVATION = 344.00 DOWNSTREAM ELEVATION = ELEVATION DIFFERENCE = • ~::.i~:!OO URBAN SUBAREA OVERLAND TIME OF FLOW (MINUTES) -8.299 50 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.561 SUBAREA RUNOFF(CFB) -.50 TOTAL AREACACRES) = .20 TOTAL RUNOFF(CFS) -.50 ************************************************************************. FLOW PROCESS FROM NODE 8'::: .• 00 TO I',IODE 87.00 IS CDDE :::: ---------------------------------------------------~--------------~-----. »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< :-.:::::::::::::::::::=:::::=::-:.=::::!=:::::::::::~::::::::=:::::=::::::::::::::.-:::::::=:::::::=.:::::::::::::::::::::::::::::::::::::::::::::::=:::::::::=:::::::::-.::::::::::::;:::::~::.:::. .. .::' .. -::::' .. '!:~ ... :::::::::::::~::::::~:-.. ;.:;::::::::-=::::::::::::::::::::::::::::::::.::-.:::;::::::: UPSTHEfil1 ELEWH I DN :::: :2:A;:~. 00 Dm'Jt\IHTRE!~:il"l ELEVAT I 01\.1 ::: 2/::8.00 STREET LENGTH (FEET) = 900.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALLCDECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLDW(CFS) -3.39 STREET FLOWDEPTH(FEET) = .23 HALFSTREET FLOODWIDTH(FEET) = 5.23 AVERAGE FLOW VELOCITY(FEET/SEC.) -4.j3 PRODUCT OF DEPTH&VELOCITY = 1.00 STREETFLOW TRAVELTIME(MINJ = 3.46 TC(MIN) = 11.76 50 YEnF~ PAINF{:iLL INTENS')ITYCINCH/HOUH) = ~:'.64·2 mEl.... CI31SSIFICATION IS "0" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA (ACRES) = SUMMED AREA (ACRES) = 2.80 BUB AREA RUNOFF (CFS) 3.00 TOTAL RUNOFF (CFS) - END OF SUBAREA STREETFLOW HYDRAUL~CS~ 5.61 DEPTH(FEET) = .26 HALFSTREET FLOODWIDTH(FEET) -6.88 FLOW VELOCITY(FEET/BEC.) = 5.16 DEPTH*VELOCITY = 1.36 *********************************************************************** FLOW PROCESS FROM NODE 87.00 TO NODE 82.00 IS CODE:::: 4 -------------------------------------------------------------------~--- »»>COMPUTE PIPEFLOW TRAVELT1ME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< :::: ::::::::::::::: :::::::::::::: :".::: ::::::::::::: :::::::::::::::::::::.-:::::::::::::::::::::::::.: ::::::::::::::::::::::::::::: :::::::::::::::::: :!.":: ::::: ::::::::=::::: ::'':::::: ::::::= ::.::-:.:: :::-.:::: !::".! =:::::::::::::: :::~::::::::::::::: ::::~ :" .. "!! ::::::::::::::::::::::::::::::::::::::::: ::::::::::::::: :::::::: DEPTH OF FLOW I~ 18.0 INCH PIPE IS 5.3 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 14.0 UPSTREAM NODE ELEVATION = 269.00 DOWNSTREAM NODE ELEVATION = 258.00 FLCl{t4LENGTI"'! (FEET)::,.:: 1 00. 00 I"IA!\IN I NG~:' N::::: . (1 1 ~2:' GIVEN PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES -1 PIPEFLOW THRU SUBAREA(CFS) -6.11 TRAVEL TIMECMIN.) = .12 TC(MIN.):::: 11.88 ********************************************************************** . FLOW ~ROCESS FROM NODE 87.00 TO NODE 82.00 IS CDDE:::: 1 ;~ -------------------------------------------~--------------------------~»»DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< :>:>:>:> :>(:'ND COt'IPUTE VAHI DI.JS CONFLUENCED STnEAt':1 V('~LUEE)<: < <: <: <: =::::::::=================================================================== CONFLUENCE VI~J.. .. UES USED FOF J NDEPENDENT E~TF~EPftel 3 {mE ~ TIME OF CONCENTRATIONcMINUTES) = 11.88 , • •• TOTAL STREAM AREA CACRES) -3.00 TOTAL STREAM RUNOFFCCFS) AT CONFLUENCE -6.11 CONFLUENCE INFORMATldN~ STREAM RUNOFF TIME INTENSITY NUt'1BEF:: (CFS;) (1"1 I ~,I.) ( I NCH I H()I)F~) ---------------------------------------------------------------------_. 1 21 . 71 1.;~ • 24 ~5 ~ ~j49 ::~ 12. 6~:' 1 1 . :::::~:5 3. :;v2 <:J ":r .... 1 6. 1 1 1 1 " BB .. !; ._1 " ,~17' RAINFALL-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 39.72 39.23 39.66 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS~ I, RUNOFFCCFS) = 39.72 TI~E(MINUTES) -12.243 TOTAL AREACACRES) = 19.80 *********************************************************************** FLOW PROCESS FROM NODE 82.00 TO NODE 88.00 IS CODE = 4 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< =====================~~====================~=========================== DEPTH OF FLOW IN 36.0 INCH PIPE IS 13.8 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 15.9 UPSTREAM NODE ELEVATION = 258.00 DOWNSTREAM NODE ELEVATION = 243.00 FLOWLENGTH(FEET) = 350.00 MANNINGS N = .013 G I VEhl PIPE D I A1"1ETER ( I NCI·-1) ::::: ~':::6. 00 NUlvlBER OF P I PES PIPEFLOW THRU SUBAREA(CFS) -39.72 1 TRAVEL TIME(MIN.) = .37 TC(MIN.) = 12.61 • ·1 ************************************************************************ FLOIJ,j r:'RDCEBS FRCm NODE E32. 00 TO NODE 8B. 00 I S CODE. = t -------------------------~---------------------------------------------_. »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ======================================================================== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE~ TIME OF CONCENTRATION (MINUTES) = 12.61 RAINFALL INTENSITY (INCH./HOUR) = 3.48 TOTAL STREAM AREA (ACRES) = 19.80 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE::: 39.72 FLOW PROCESS FROM NODE 89.00 TO NODE 90.00 IS CODE :~ ..... " »»>RATIONAL METHOD INITIAL SUBAREA ANALYBIS««< ':' .. ========================================================================: SOIL CLASSIFICATIDN H3 "0" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) -100.00 UPSTREAM ELEVATION = 294.00 DCJIJJNSTRE('WI EL.EV{-i T I ON ~'" 2<:;'2. 00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOWfMINUTES) -8.299 50 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.561 'SUBAREA RUNOFF(CFS) -.50 TOTAL AREACACRES) = .2<) TOTAL RUNOFF (CFS) - , • • --------------~------------------------------------------------~-------- »»>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA««< ======================================================================== UPSTREAM 'ELEVATION = 292.00 DOWNSTREAM ELEVATION = 277.00 STREET LENGTH (FEET) = 900.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 1\-·l<~TF~(..'~\)ELT It"1E COl'1PUTEDUS 11'48 t"1E{~N r:L(JlI·j (CFE)) -6.40 STREET FLOWDEPTHCFEET) = .33 HALFSTREET FLOODWIDTHCFEET) = 10.20 AVERAGE FLOW VELoCITY(FEET/SEC.) = 2.76 PRODUCT OF D~PTH&VELOCITY = .91 STREETFLOW TRAVELTIMECMIN) = 5.43 TC(MIN) = 13.73 50 YEAR RAINFALL INTENSITYCINCH/HOUR) = 3.297 1:::;OIL CL.J1SSIFIC('~TIDt\1 Hi "0" SINGLE FAM1LY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES) = 6.30 SUBAREA RUNOFF(CFS) -11.42 SUMMED AREA (ACRES) = 6.50 TOTAL RUNOFF(CFS) -11.92 END OF SUBAREA STREETFLDW HYDRAULICS: DEPTH (FEET) = .38 HALF STREET FLOODWIDTH(FEET) -L2.68 FLOW VELOCITY(FEET/SEC.) = 3.45 DEPTH*VELOCITY = 1.31 ************************************************************************~ FLOW PROCESS FROM NODE 91.00 TO NODE 97.00 IS CODE :::: »»>CoMPUTE PIPEFLoW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< =============================~===================================~=~==== DEPTH OF FLOW IN 24.0 INCH PIPE IS 9.5 INCHES PIPEFLOW VELOCITYCFEET/SEC.) = 10.3 UPSTREAM NODE ELEVATION = 277.00 DOWNSTREAM NODE ELEVATION = 268.00 FLDWLENGTHCFEET) = 300.00 MANNINGS N = .013 (3 I VEN F' I PE D I At"1ETH~ ( I NO"I) ::: 2-'1·. 00 l'-IUlvIBEH OF P I PES -- PIPEFLoW THRU SUBAREACCFS) -11.92 TRAVEL TIME(MIN.) = .48 TC(MIN.) = 14.21 1. ***********************************************************************. FLOW PROCESS FROM NODE '12. 00 TO NODE 9:$. 00 IS CDDE :::: 2 »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< =============================================~========================= SOIL CI..PISSIFICATION IS liD" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH (FEET) -100.00 UPSTREAM ELEVATION = 294.00 DOWNSTHEAM ELEVATION = 292.00 ELEVATION DIFFERENCE = 2.00 UHB{~N SUBAF~E{~ OV[.;:~m .. {'H\1D T I 1"1[-:: OF FL.Dl14 (r'"l I NUTEE-j) ..... (;3. 299 50 YEAR RAINFALL INTENSITY (INCH/HOUR) = 4.561· SUBAREA RUNDFFCCFS) -.SO TOTAL AREACACRES) = .20 TOTAL RUNOFF(CFS) -.50 **********************************************************************~ FLQl!J PROCESS FRDI"'1 NODE 92:;.00 TO NODE (7'4. 00 I B CODE::::: 6 . »»>COMPUTE STREETFLOW TRAVELTIME THRW SUBAREA««< =================================~=======~============================ UP~1TRE(..)t'·1 EL.E\.jAT ION ::::: !;inHEET L.ENGTH (FEET) = STREET HALFWIDTH(FgET) s'oo.oo :::: 28 p 00 DOWNSTREAM ELEVATION = 269.00 CUF:D HE I e::rn-I ( I NCHEB) :::: {). \3TF~E::ET CROS.SF f:H ... L( DEC I t'1(~jL.) "= .• 0:::=:00 , • • ·:"·l''TF~{1'V't:~!...TII-1E CCJJ"IPUTE::D 1...J:::3Ih!l3 1··IE{:d···~ FLm·J (CF:;~:;) ..... b .. '7:1. STREET FLOWDEPTHCFEET) = .31 HALFSTREET FLOODWIDTH(FEET) = 9.37 AVERAGE FLOW VELOCITYCFEET/SEC.) -3.37 PRODUCT OF DEPTH&VELOCITY = 1.06 STREETFLOW TRAVELTIME(MIN) = 4.45 TCCMIN) = 12.75 50 YEAF~ RA I NFAL.L. I NTENS I TY ( I t'~CH I HOUF:) :::." ~~:. .. 457 SOIL CLASSIFICf4TION IS "0" SINGL.E FAMIL.Y DEVEL.OPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA (ACRES) = 6.40 SUBAREA RUNOFF(CFS) -12.17 SUMMED AREA(ACRES) = 6.60 TOTAL. RUNDFFCCFS) -12 .. 67 END OF SUBAREA STREET FLOW HYDRAULICS: DEPTH (FEET) = .36 HAL.FSTREET FLOODWIDTH(FEET) -11.85 FLOW VELOCITYCFEET/SEC.) = 4.16 DEPTH*VELOCITY = 1 .. 51 **********************************************************************~. FLOW PROCESS FROM NODE 94.00 TO NOm::~ ('17.00 IS CD DE =:: »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ========================~============================================== DEPTH OF FLOW IN 36.0 INCH PIPE IS 9.7 INCHES PIPEFL.OW VEL.OCITY(FEET/SEC.) = 8.2 UPSTREAM NODE ELEVATION = 269.00 DOWNSTREAM NODE ELEVATION = 268.00 FLOWlENGTH(FE~T) = 60.00 MANNINGS N = .013 GIVEN PIPE DIAMETER CINCH) = 36.00 NUMBER OF PIPES - PIPEFlOW THRU SUBAREA(CFS) -12.67 TRAVEL TIME(MIN.) = .12 TC(MIN.) = 12.87 ************************************************************************ FLOW PROCESS FROM NODE 91..1·.00 TO I\IODE <'17. 00 IS COD.E :::= :>:>:>:> :>(::lDD I T I ON OF SUBArH~("l TO 1"1(..', I NL I Nt::: PEAl::: FU)\J·J<: <: < < < ===============~====================~======================~============: 50 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.436 SOIL.. CLA~3BIFIC{.'~TION IE; "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEF~ICIENT = .5500 SUBAREA AREA (ACRES) -6.30 SUBAREA RUNOFF(CFS) -11.90 TOTAL AREA(ACRES) -12.90 TOTAL RUNOFF(CFS) = 24.57 TC(MIN) = 12.87 ************************************************************************, FLOW PROCESS FROM NODE 97. 00 TO NDJJE BB.OO IS CODE ".:: 4- -----------------------------------------~---~-------------------------_. »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»:>USING USER-SPECIFIED PIPESIZE««< ======~=================================================================: DEPTH OF FLOW IN 36.0 INCH PIPE IS 9.4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 16.7 UPSTREAM NODE EL.EVATION = 268.00 DOWNSTREAM NODE ELEVATION = 243.00 FLOWLENGTH(FEET) = 350.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES - F' I F'EFI.. .. OW TI--InU SUBPIHE?:, (CF~3) .... 24. ~57 TRAVEL TIME(MIN.) = .35 TC(MIN.) =' 13.22 :t ************************************************************************ FLOW PROCESS FROM NODE 97.00 TO NODE 88.00 IS CODE = 1 ------------------------------------------------------------------------ , • • ==============================~================~=====~===============~~= CDNF-UJENCE Vm.I...JEf.3 UBED FCm I NDEF'EhIDENT t3TF';:E(:il'1 ~,;:: (.~nE: TIME OF CONCENTRATION(MINUTES) = 13.~2 RAINFALL INTENSITY (INCH./HOUR) = 3.38 TOTAL STREAM AREA (ACRES) = 12.90 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 24.57 ************************************************************************. FLOW PROCESS FROM NODE 95.00 TO NODE 96.00 IS CODE = 2 --------~----------------------------------------------------------------»»>RATIONAL METHOD INITIAL BUBAREA ANALYSIB««< ========================================================================: SOIL CLAflSIFIC('HION IS "0" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTHCFEET) -100.00 UPSTREAM ELEVATION = 280.00 DOWNBTREAM ELEVATION = 278.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOWCMINUTES) -8.299 50 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.561 SUBAREA RUNOFF (CFS) -.50 TOTAL AREACACRES) = .20 TOTAL RUNOF~(CFS) -.50 . '.-:' ************************************************************************! -I FLOW PROCESS FROM NODE 96.00 TO NODE 99.00 IS CODE = 6 -------------------------------------------------------------------------»»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ========================================================================: UPSTREAM ELEVATION::::: 278.00 DOWNSTREAM ELEVATION::::: 244.00 STREET LENGTH(FEET) = 500.00 CURB HEIGTHCINCHES) = 6 • STREET HALFWIDTH(~EET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -4.04 STREET FLOWDEPTH(FEET) = .25 HALFSTREET FlOODWIDTH(FEET) = 6.05 AVERAGE FLOW VELOCITY(FEET/SEC.) -4.17 PRODUCT OF DEPTH&VELOCITY ::::: STREETFLOW TRAVELTIME(MIN) = 2.00 50 YEAR RAINFALL INTENSITY(INCH/HOuR> = 3.968 SOIL CU~SSIFIC?)"rION IS liD" f:) INGLE F (:~I"I I 1_ •. Y DEVELOPt'IENT nUNOFF COEFF I C lENT ::::: . ~.'i~~;OO SUBAREA AREA(ACRES) = 3.20 SUBAREA RUNOFF (CFS) -6.~8 SUMMED AREACACRES) = 3.40 TOTAL RUNOFF (CFS) -7.48 END OF SUBAREA STREETFLOW HYDRAULICS~ DEPTH(FEET)::::: .28 HALFSTREET FLOODWIDTH(FEET) -7.71 FLOW VELOCITY(FEET/BEC.) = 5.25 DEPTH*VELOCITY = 1.47 **********************************************************************1 F-LOl1J F'f;:OCEBS FJ;:Clt1 NODE 98 To 00 TO NODE 88. 00 IS CDDE::: 4 -----------------------------------------------------------------------»»>COMPUTE PIPEFLOW TRAVELTIME THRU BUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< :::::====================================================================== DEPTH OF FLOW IN 18.0 INCH PIPE IS 7.8 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 10.3 UPSTREAM NODE ELEVATION = 245.00 D'm,JI\lSTF~E{-~I'l NDDE ELEV~l T I ON;:;: 2,'1-:::::. 00 ~LOWLENGTH(FEET) = 50.00 MANNINGS N -.013 GIVEN PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES - 1 PIPEFLOW THRU SUBAREA(CFS) -7.48 TRAVEL TIMECMIN.) = .. 08 TC(MIN.) = 10.38 . ~. , • • **********************************************************************. FLOW PROCESS FROM NODE 98.00 TO NODE 88.00 IS CODE = 1 ----------------------------------------------------------------------»»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>ANb COMPUTE VARIOUS CONFLUENCED STREAM VAlUES««< ::::::::::::::::::: :::::::::::::::::::::::::::::::::: :::::::::: :::::::::::::::::::::::: :'.!:::::::::::::::: ::-.::::::::::::::::::-': :::::::::::::::::::: =:::::: ==:=::::: ::::::::::::::;:: ::::::::-.: :::::"::::::::::::::::::::=:::: ::.:: =.::::::.:: :;: ::-.:::::::::: :::::=. :::::.:::::::::::::: ::::::::::;:: ::::::: CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE~ TIME OF CONCENTRATION(MINUTES) = 10.38 RAINFAll INTENSITY (INCH./HOUR) = 3.95 TOT ?-il... t)TRE{.~t'1 {'"~REr-, (ACRES):!: :::;;. 40 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 7.48 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUt'·1BEFi: (CFE';) (Ivl 11'·.1.) ( INCH / HOUr:::) 1 ~$<7\ " 72 1.2 .. 61 ~3 .. ~1· E~:;;~ ::~ 24~ 57 13. 2~~ ::~ u ::~:7'? ~$ """1 48 10. :::::8 -:r 948 I . ._, " RAINFAll~INTENSITY-RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS VARIOUS CONFLUENCED RUNOFF VALUES AR~ AS FOLI...OWS~ 70.16 69.50 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFFCCFS) = 70.16 TIMECMINUTES) -12.610 TOTAL AREACACRES) = 36.10 ************************************************************************ FLOW PROCESS FROM NODE 100.00 TO NODE 101.00 IS CODI::~ :::"" =============================================~====~===================== SOIL CU:~SSIFIC(4THJt\1 IS liD" RURAL DEVELOPMENT RUNOFF COEFFICIENT = .4500 NATURAL WATERSHED NOMOGRAPH TIME OF CONCENTRATION WITH :I. O--t·1 I NUTES ('~DDED ::~ 1:::;. 1.1·<:], (til I NUTES) INITIAL SUBAREA FLOW-LENGTH (FEET) -900.00 UPSTREAM ELEVAtION = 425.00 DOWNSTREAM ELEVATION = 330.00 ELEVATION DIFFERENCE = 95.00 50 YE('~R RA II',IFALL I NTENS I TY ( I NCI·-II HOUR) .--3. ~.::.3::::: SUBAREA RUNOFF(CFS) -8.40 TOTAL AR~A(ACRES) = 5.60 TOTAL RUNOFFCCFS) -8. L~O ************************************************************************~ FLOW PROCESS FROM NODE 101.00 TO NODE ·103.00 IS CODE = 4 -------------------------------------------------------------------------. . »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ===========================================================~============, DEPTH OF FLOW IN 18.0 INCH PIPE IS 10.2 INCHES PIPEFlOW VELOCITY(FEET/SEC.'· = 8~1 UPSTREAM NODE ELEVATION = 330.00 DOWNSTREAM NODE ELEVATION = 328.00 FLOWLENGTHCFEET) = 100.00 MANNINGS N = .. 013 GIVEN PIPE DIAMETERCINCH) = 18.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREA(CFS) -8.40 ~RAVEL TIME(MIN.) = .20 TCCMIN.) = 13.70 ************************************************************************ tOl • 00 TO I\IODE , • »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ===========================~========================~===================. CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) = 13.70 RAINFALL INTENSITY (INCH./HOUR) = 3.30 TOTAL STREAM AREA (ACRES) = 5.60 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 8.4·0 ************************************************************************: FLOW PROCESS FROM NODE 102.00 TO NODE 103.00 IS CODE = 2 »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ========================================================================: ~WIL. CL.PiSSIFIC(.iTION IS liD" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 NATURAL WATERSHED NOMOGRAPH TIME OF CONCENTRATION WITH 10-MINUTES ADDED = 15.80(MINUTES) INITIAL SUBAREA FLOW-LENGTHCFEET) -700.00 UPSTREAM ELEVATION = 340.00 DOWNSTREAM ELEVATION = 328.00 ELEVATION DIFFERENCE = 12.00 50 YEAR RAINFAL.L INTENSITYCINCH/HOUR) -3.011 SUBAREA RUNOFF (CFS) - TOT ?;L M;:EA (ACHES) :::~ 1.80 TOTAL RUNOFF (CFS) - ************************************************************************~ FLOW PHOCESS FHOM NODE 102.00 TO NODE 1 o~:.. 00 I S CODE :::: »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< 1. ====================================================~================~== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE~ TIME OF CONCENTRATION (MINUTES) = 15.80 RAINFALL INTENSITY (INCH./HOUR) = 3.01 TOTAL STREAM AREA (ACRES) = 1.80 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 2.98 CONFL.UENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUt"1BEF~ (CFf3) (1''''1 IN.) ( I NCI···I / HOUR) ------------------------------------------------------------~----------. 1 8.4·0 2 2~98 15.80 3.01:l RAINFALL-INTENSITY-RATIO CONFL.UENCE FORMULA USED FOH 2 STREAMS VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 11 . 12 10. 61.~ COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) = 11.12 TIMECMINUTES) -13.699 TOTAL AREA (ACRES) = 7.40 **********************************************************************f FLOW PROCESS FROM NODE 103.00 TO NODE 104.00 IS CODE = 4 ----------------------------------------~------------------------------»»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ==~===~=================~==================~~=====================~===. D~PTH OF FLOW IN 24.0 INCH PIPE IS 9.3 INCHES PIPEFLOW VELOCITYCFEET/SEC.) = 9.9 UPSTREAM NODE ELEVATION = 328.00 DOWNSTREAM NODE ELEVATION = 307.00 FLOWLENGTH(FEET) = 150.00 MANNINGS N -.013 , • " PIPEFLOW THRU SUBAREA(CFS) - TRAVEL TIME(MIN.) = 1.27 11. L? ore: (t'1 I t\1 n_) .~ .. **********************************************************************. FLOW PROCESS FROM NODE 103.00 TO NODE 104.00 IS CODE = 1 »»>OESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ::::: ::0':::::: :::::::::: :::-.: == :::: :::: ::::: ::::: ::::::::::::: =:::::: :::: :;::::::::::.: ::::::::: :::::::::: ::: ::::: ::::: ::::: =.:: ::::: :::::::: ::::: :::: :::: :.-::: ::::: ::::: :::: :::: ::::: !!:: :::-.:::::: ::::: ::::: ::::: ::::-::::: ::;:: ::::: :::::::= :::-: ~:: ::::: ::::: ::::: ::::: ::~': :::: ::::: ::::: ::::: ::::: ::=: ::::: ::::: ::::: ::::: :::: CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE; TIME OF CONCENTRATIONCMINUTES) = 14.97 RAINFALL INTENSITY (INCH./HOUR) = 3.12 TOTAL STREAM AREA (ACRES) = 7.40 TOTAL STREAM RUNOFF (CFS). AT CONFLUENCE -11.12 *********************************************************************** FLOW PROCESS FROM NODE 105.00 to NODE 106.00 IS CODE = 2 »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ===================================~===================================. SOIL CLASSIFICATIDN IS "0" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) -100.00 UPSTREAM ELEVATION = 312.00 DOWNSTREAM ELEVATION = 310.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOWCMINUTES> - 50 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.561 SUBAREA RUNOFFCCFS) -.50 TOTAL AREA(ACRES) = TOTAL RUNOFF (CFS) ~ II ~.5() *********************************~**************************************. FLOW PROCESS FROM NODE 106.00 TD NODE 1.07.00 If3 CODE ::: »»>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA««< ~,,: ' .. ========::::::::::======:::::==:::::===:::::=====::::::::::=::::::::::===:::::====~=============================: UPSTREAM ELEVATION::::: 310.00 DOWNSTREA~ ELEVATION::::: 307wOO STREET LENGTH (FEET) ::::: 900.00 CURB HEIGTHCINCHES) = 6. BTHEET HALF\.tJIDTH (FEET) ::: 28.00 STr.:::EET CFmSEWf-:il,j,. <DECH1PiI ... ) ...... 0200 SPECIFIED NUMBER OF HALF STREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLDW(CFS) -6.25 STREET FLOWDEPTHCFEET)::::: .40 HALFSTr.:::EET FLOODWIDTH(FEET) = 13.51 AVERAGE FLOW VElOCITYCFEET!8EC.) = 1.61 PRODUCT OF DEPTH&VELOCITY = .64 STREET FLOW TRAVELTIMECMIN)::::: 9.33 TCCMIN)::::: 17.63 50 YEAr.::: RAINFALL INTENSITY (INCH!HOUR) ::::: 2.806 SOIL CL('\SSIFICATION IS "D" E3INC7lLE FAt"IILY DEVEL..OPt"IENT PUNOFF COEFFICIENT ::::: . ~.i~~OO SUBAREA AREA(ACRES)::::: 7.20 SUBAREA RUNOFF(CFS) -11~11 SUMMED APEA(ACRES) = 7.40 TOTAL RUNOFFCCFS) -11.61. END OF SUBAREA STREET FLOW HYDRAULICS~ DEPTH (FEET)::::: . 48 1-·1f.:)L..FS·T"PEET FLDODl'·J I DTH <FEr;::T) ,... 17. 6~i FLOW VELOCITYCFEET/SEC.)::::: 1.80 DEPTH*VELOCITY = .86 ************************************************************************. h_OW PROCESS FROM NODE 107.00 TO NODE 104 n 00 IS CODE ::: > >->->->-CDt"1PUTE PI PEFLDllJ TRf.:l'v'EL .. T I 1\1E Tl--n:"(u SUBAF~E('~< -::: <: -::: <: »»>USING USER-SPECIFIED PIPESIZE««< 4 ; , • • PIPEFLOW VELOCITY(FEET/SEC.) = 8.0 UPSTF:[?~~!I NODE ELEVATION:::: ~507. 00 DOWNSTREAM NODE ELEVATION ~ 306.00 FLOWLENGTH(FEET) = 60.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREA(CFS) -11.61 TRAVEL TIME(MIN.) = .12 TC(MIN.):::; 17.75 1 ************************************************************************~ FLOW PROCESS FROM NODE 107.00 TO NODE 104. 00 I t3 CODE ::: 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ===============::::===================================::::===~================= CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 17.75 RAINFALL INTENSITY (INCH./HOUR) = 2.79 TOTAL STREAM AREA (ACRES) = 7.40 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE:::; 11.61 ************************************************************************~ FLOW PROCESS FROM NODE 108.00 TO NODE 109.00 IS CODE:::; 2 -------------------------------------------------------------------------»»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ==========~=========================~==================================== SOIL CLASSIFIC?WION IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH (FEET) -100.00 UPSTREAM ELEVATION = 313.00 DOWNSTREAM ELEVATION = 311.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW (M1NUTES) -8.299 50 YEAR RAINFALL INTENSITY (INCH/HOUR) = 4.561 SUBAREA RUNOFF(CFS) -.50 TOTAL AREA(ACRES) = " 2() TOTAL RUNOFF (CFS) ~ .50 **********************************************************~************* FLOW PROCESS FROM NODE 109.00 TO NODE 104.00 16 CODE = 6 --~------------------------~--------------~----------~------------------»»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ================================================~=======~========~=====: UPSTREAM ELEVATION = 311.00 DOWNSTREAM ELEVATION = 306.00 STREET lENGTHCFEET) = 550.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTHCFEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVElTIME COMPUTED USING MEAN FlOW(CFS) -1.59 STREET FLDWDEPTH(FEET) = .25 HALFSTREET FLOODWIDTHCFEET) = 6.05 {WEHf~(3E FLmJ VEI.. .. OCITY (FE:ET/f~EC.) --1. tA PRODUCT OF DEPTH&VElOCITY = .41 STREET FLOW TRAVELTIME(MIN) = 5.59 TC(MIN) = 13.89 50 YEAR RAINFALL INTENSITY (INCH/HOUR) = 3.272 ~;oIL CLASSIFICATION IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES) = 1.20 SUBAREA RUNOFP(CPS) -2.16 SUMMED AREA (ACRES) = 1.40 TOTAL RUNOFF (CFS) -2.66 ~ND OF SUBAREA STREET FLOW HYDRAULICS: D~PTH(FEET) = .28 HALF STREET FLOODWIDTH(FEET} -7.71 FLOW VELOCITY(FEET/SEC.) -1.87 DEPTH*VELOCITY = .52 *******~~***************~****~~**************************************~ I / • • :>:>:>:> >DE:::3 I GN(..'i TE I 1',IDEF'Et··.II)ENT f.nF~EPdvl FOF~ COM=I.. .. l.JENCE < < < < < »»>AND COMPUTE VARIOUS [ONFLUENCED stREAM VALUES««< =====~============================================================~=== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 AREg TIME O~ CONCENTRATIONCMINUTES) = 13.89 RAINFALL INTENSITY (INCH./HDUR) = 3.27 TOTAL STREAM AREA (ACRES) = 1.40 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE -2.66 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUI'mER (CFS) (1'11 N.) ( INCH/HOUR;' ----------------------------------------------------------------------- 1 1 :l R 1 ~~ 1. 4· • r'\"", "71 ..... •• ~I .. 1 1 , .. , C) .... '1 1 1 6l 17. -ore:' .-, 793 .,::. . ! ._' .,::.11 ~::: .-, .1!:' • 66 13 II ::1(? ":r . ... ' .. :27~:::: RAINFALL-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS~ 24.06 23.84 23.17 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS~ RUNOFF (CFS) = 24.06 TIME(MINUTES) = 14.965 T01AL AREA(ACRES) = 16.20 --------------------------------------------------------------------~~--------------------------------------------------------------------------END OF RATIONAL METHOD ANALYSIS , ' CITY OF CARLSBAD :-:; -. r: CARLSBAD HIGHLANDS HYDROLOGY STUDY 100-YEAR HYDROLOGY STUDY .. \,V.O. 270 -40 ~ (It .. 1) From precipitation maps determine 6 hr. and 24 hr. amounts for the selected frequency. These maps are'printed in the County Hydrology Manual (10, 50 and 100 yr. maps included in the Design and Procedure Manual). 2) Adjust 6 hr. precipitation (if necessary) so that it is within the range of 45% to 65% of the 24 hr. precipitation. (Mot npplicable to Desert) I 3) Pl~t 6 hr. prec1pitati~n on the right side of the chart. 1 4) Draw a line through the point parallel to.the plotted lines. . 5) * 5.~ , P 6 = 58 %* PZ4 t:t.::tt.:r-±H:1:16±f±+HlttHH-IffiHU~_ ++t+1t+l:WI:m 2) in. ?; : -: : ~ : ~ :' .' ~ : ~ .: :: : -: . 3) t = mi n. ~ . ._.~. .: .': .. C ~.2 --. - . .. . . 4) I = ~i n/ hr. 1-1 >< *Not Applicable to Desert Region ~ 1:1:1:t:I:I:I:.I-" " , -H-H-H-f- II-I I I 1 I 1-++1-+l-1-l-+I··· 1-~-+-I+H+H-I+!++HfH 1I-H4++!-++!-"~~-I' ~.1 l~lj-tjttjttl ." .. ~ lotHtttl1IUttllllll~ttltttWlmIlIllUlllmmt:l till I . . I ttttttjtl111U1ltii 2 Hours 3 4 5 6 15 20 30 40 50' 1 Minutes Duration ... ! APPENDIX XI IV-A-14 Revised 1/85 ===============================~===================================:~======= nr-Yr I DI\U·~\L.. I"'IETHOD 1·f"r'DHOLCl(3',{ COI"!PUTER PFi:OGFU·\t"1 P('~CK(')(3E Reference: SAN CIEGO COUNTY FLOOD CO~ITFi:OL DISTnICT C' 198~5 , 1 Ci81 HYDROL.OI3Y 1'1('~NUAL :::::.::= =: ::::: == :::: :::!:::::::: :;::: ::::: ::::: ::::: =:: :::: ::::: == :::: ::::-::::::::: :::: ::::::::: !:'.:: :::::::::: ::::::::::::: ::::: :::-.: ::::: ::::: ::::: :;:::::::: ::::::::: :::!! :.:::: :.::: ::::: :::: :::-.: ::::: :::: :.:: :::: !:::: ::::::::::::::: ::-.:: ::::::::: :::~:::: ::::: ::::: ::::: ::::: ::::::: ::: :::: :."::::::::::: :::: ::-~::::: ::-.:: ::: :::::::::: • I «««««~«««««««««««««<»»»»»»»»»»»»»»»»»»» (C) Copyright 1982,1986 Advanced Engineering Software [AESJ Especially prepared for: HUNSAKEn & ASSOCIATES «««««««««««««««««««»»»»»»»»»»»»»»»»»»» **********DEscnIPTIQN OF Fi:ESUL.TS******************************************** * CARLSBAD HIGHLANDS -100 YEAFi: HYDFi:OLOGY STUDY * .*. I,IJ. D. 270··AO .j(- **************************************************************************** USEFi: SPECIFIED HYDROLOGY AND HYCFi:AULIC MODEL INFORMATION: ------------------------------------------------------------------------_._-- 1985 SAN DIEGO MANUAL CRITEnIA I...JSE:F~ SPEC I F I ED f3TOnt"1 EVENT (YE(.:m) :::: 1. 00 .. 00 6-HOUR DURATION PRECIPITAtION (INCHES) = 2.900 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PEFi:CENT OF ~RADIENTS(DECIMAL.) TO USE FOR FRICTION SLOPE = .85 «««««««««««««««««««»»»»»»»»»»»»»»»»»»» (.)c:!v<,::\ncE,c:1 Enq i nf:?f::)! .... i flq BD-f tl;~<iY\f·f::~ [: f·~EE3] SERIAL No. 107301 REI.. .. r::::(.·~BE DATE: 4/:22/136 «««««««««««««««««««»»»»»»»»»»»»»»»»»»» 1 • 00 TO I····.!DDE:~ :,~:~. 00 I D CClDE :::: ''''I .t::. ============================================================================ SOIL.. CI3iSBIFIC(.YTION IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) -100.00 UPSTREAM ELEVATION = 342.00 DClWNSTFi:EAM ELEVATION = 340 .. DO ELEVATION DIFFERENCE = 2.00 U~BAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) -8.299 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 5.511 SUBAFi:EA RUNOFF (CFS) -.61 TOT m~ {'~PE{~ ({'\CRI::5) :::: . 20 TOT (.\L... F;:UNOFF (CFS) _.. . I..; 1. **************************************************************************** FLOW PROCESS FROM NODE '2. 00 TO ~\IDDE ::::." 00 I El Ct"JDE :::~ ============================================================================ UPSTREAM ELEVATION = 340.00 DOWNSTREAM ELEVATION = t STREET LENGTH (FEET) = 430.00 CURB HEIGTHCINCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFAlL(DECIMAL) - SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) = STREET FLOWDEPTH(FEET) = .30 .0260 8.54· HALF STREET FLOODWIDTH(FEET) = AVERAGE FLOW VELOCITYCFEET/SEC.) - PRODUCT OF DEPTH&VELOCITY = 's""" .. 7 ,,::. 3.1.0 STREETFLOW TRAVELTIMECMIN) = 2.31 TC Ct··1IN) :::; 100 YEAR RAINFALL INTENSITY (INCH/HOUR) = 4.703 BOIL CU~BBIFICATI()N IB "D" 1. 0" f..~,l SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES) = 3.60 SUBAREA RUNOFFECFS) -Q.31 SUMMED AREA (ACRES) = 3.80 TOTAL RUNOFF(CFS) -9.92 END OF SUBAREA STREETFlOW HYDRAULICS: DEPTH (FEET) = .35 HALF STREET FLOODWIDTH(FEET) -11.02 FLOW VELOCITYCFEET/SEC.) = 3.72 DEPTH*VELOCITY = 1.29 **************************************************************************** FLOW PROCESS FROM NODE 4,,00 TO NODE 5.00 IS eeIDE = 2 ---------------------------------------------------------------~------------»»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< =============================================~===========~==========~======= • SOIL CL.{·)f3EHFICf"4TIClN IS "D" ~3 I 1\~l7iLE F{.:lf'1 I LY DEVELOF't'1ENT HUt'JOFF COEFF I C lENT == • !.5!:'500 I I NIT I ?H... E3UBARE(':) FUJv.}---LEI\IGTI· .. 1 (FEET) ..... 120. 00 UPSTREAM ELEVATION = 395.00 DOWNSTREAM ELEVATION = 386.00 ELEVATION DIFFERENCE = 9,,00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) -8.878 *CAUTION~ SUBAREA SLOPE EXCEEDS COUNTY NOMOGRAPH DEFINITION. EXTRAPOLATION OF NOMOGRAPH USED . . 100 YEAR RAINFALL INTENSITY (INCH!HDUR) = 5.276 SUBAREA RUNOFF(CFS) -.87 TOH~L AFi:E(:~ (?'1Cr:;:ES) :::: . ~$O TtJf(.)L r':;:UI .. mFF (CFS) -... .,~,.. n Cr/ **************************************************************************** FLOW PROCESS FROM NODE ~s . 00 TO NODE 6.00 IS CODE ".:: ----------------------------------------------------------------------~-----»»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< =======================================~============~~====================== UPSTREAM ELEVATION = 390.00 DOWNSTREAM ELEVATION = 370.00 STREET lENGTH (FEET) = 450.00 CURB HEIGTHEINCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALLtDECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTI~D USING MEAN FLOWCCFS) -6.70 f.~TF~EET FLm'JDEPTH (FEET)!::: . 30 HALFSTREET FLOODWIDTHCFEET) = 8.54 AVERAGE FLOW VELOCITYCFEET/SEC.) -3.95 PRODUCT OF DEPTH&VELOCITY = 1.17 STREET FLOW TRAVELTIME(MIN) = 1..90 TC(MIN) = 10.78 , 100 YEAR RAINFALL INTENSITY (INCH/HOUR) = 4.656 ~:mIL. CU1E;tHFlc?~TI()N IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREACACRES) -"4.50 EWSAREA RUNOFFCCFS) - END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET)::::: . :3~) HALF:-STHEET FU]ODlJ.j I D·n .. ·1 (FEET) ::::: 1:[.02 FLOW VELOCITY(FEET/SEC.) ::::: 4.65 DEPTH*VElOCITY = 1.61' **************************************************************************** t FLmJ PFmCE!.:m FHCJt-'1 NODE 6. 00 TO t··-ICJDE 9. 00 I B CODE::::: ~r. . --~~~~;~·(;·t:1·f~~J~r:·f.;--F;-I·-F~'E~f~l-~~J-~r:~~;v-f.~·I-~r:-I·t;IE~-~I::I'·F~~-;~J~A:;E~·A-~~~~~------------------------ .... " .' " .. 01-•• ... •••• •• • •• _v· r\t"I.... .... . ... r \ .... "'1/_. .... r"\.. . .... »»>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)««< • ~==============================================================~============ ESTIMATED PIPE DIAMETER(INCH) INCREAGED TO 18.000 DEPTH OF FLOW IN 1840 INCH PIPE IS 8.2 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = i5.7 UPSTREAM NODE ELEVATION = 370.00 DOWNSTREAM NODE ELEVATION::::: 338.00 FLOWLENGTH(FEET) = 360.00 MANNINGS N -.013 ESTIMATED PIPE DIAMETER(INCH) -18.00 NUMBER OF PIPES -1 PIPEFLOW THRU SUBAREA(CFS) -12.39 TRAVEL TIMECMIN.) = .38 TC(MIN.) -11.16 *********************************7****************************************** FLOW PROCESS FROM NODE 6.00 TO NODE 9.00 IG CODE :::: :I. ----------------------------------------------------------------------------»»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ===============================================================~============ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE~ TIME OF CONCENTRATIONCMINUTES) = 11.16 RAINFALL INTENSITY (INCH./HoUR) = 4.55 TOTAL STREAM AREA (ACRES) = 4.80 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 12.39 **************************************************************************** FLOW PROCESS FROM NODE 7.00 TO NODE 8. 00 I S CODE :::: ----------------------------------------------------------------------------»»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< =============================================================~=======~====== SO I L CL('~[?~3 I F I C('~ T I ON IS 11 D" BHIGLE F{·\t"HL.Y DEVE:L.OF't'!IE:NT HUNOFF CDEFFICIf::::NT ::::: ft ~7,;::500 INITIAL SUBAREA FLOW-LENGT.1(FEET) -120.00 UPSTREAM ELEVATION = 370.00 DOWNSTREAM ELEVATION = 364.00 ELEVATION DIFFERENCE = 6.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) -8.648 *CAUTION~ SUBAREA SLOPE EXCEEDS COUNTY NOMOGRAPH DEFINITION. EXTRAPOLATION OF NOMOGRAPH USED. 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 5.366 SUBAREA RUNOFF (CFS) -.89 TOTAL AREACACRES) -.30 TOTAL HUNDFF(CFS) -.89 **************************************************************************** FLOW PROCESS FROM NODE 8.00 TO NODE 9.00 IS CODE = 6 ----------------------------------------------------------~----------------- I :>:> >:::->COI"IPUTE STF~EETFLD[J.J TH{,v',/i:::LT I t11E THnu f:3UBI~HEA-::: <: <: -:::-::: C""=~;.~7-~~~~C"";~~~::~~~~~;.;~~::::~:::=:::::;~~::~:~:::::=:::::::;;~~~;;~;~~:~~~~~:::::~~~~~~~;~~;.~~~~~;"=.::::::::::::::::::::::;;~:~~~~:.:::::C""::c~=:::::::::::::::: STREET LENGTHCFEET):::::' 400.00 CURB HEIG1HtINCHES) = 6. ~nHr::~ET !-·I{·:lL.FW I DTH (FEET) ........ 28. 00 STHEET CHClSSF·{~L..L... (DEC I til{·iL)· :::: . 0200 ~ SPECIFIED NUMBER OF HALFSTREETS CARRYING HUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLDW(CFS) -6.24 STREET FLOWDEPTHCFEET)::::: .26 HALFSTHEET FLOODW~DTH{FEET) = 6.88 PRODUCT OF DEPTH&VELOCITY' = STREETFLOW TRAVELTIME(MIN) = 1.26 100 YEAR RAINFALL INTENSITYCINCH/HOUR) = 4.914 SOIL. CU~S~3IFICf.1TION IS "D" 9,,91 SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 t SUBAREA f.1REA(ACRES) = 4.00 SUBAREA RUNOFF(CFS) - SUMMED AREA (ACRES) = 4.30 TOTAL RUNOFF (CFS) - END m:: SUBf¥~EA STREETFUJW HYDF~{~UL I CS ~ DEPTH (FEET) = .31 HALF STREET FLOODWIDTH(FEET) - FLOW VELOCITY(FEET/SEC.) = 5.87 DEPTH*VELOCITY = 10.81 11.70 1" 8·f.!· FLOW PROCESS FROM NODE 8.00 TO NODE 9.00 IS CODE ::::: 1. ----------------------------------------------------------------------------»»)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< =~========================================================================== CONFUJENCE \lALUES USED FOP I !'-mEPENDENT Sn"i:EJ·':jt'1 2 (:1F\E:: TIME OF CONCENTRATIONCMINU1ES) = 9.91 RAINFALL INTENSITY (INCH./HOUP) = 4.91 TOTAL STREAM AREA (ACRES) = 4.30 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 11.70 **************************************************************************** FLOW PROCESS FROM NODE 10.00 TO NODE 11.00 IS CODE = 2 .......... 00-...... _ .. _ ........................... _ .......... _ ........ _ ............ _ 00_"_",,, _ .......... ______ 00 ___ 00 __ • __ • _ ........ ____ • ___ ..... ~ .. _ .. __ ... 00 ••• _. __ ........... _ ............. 00_ ..... _ .......................... _H •.......... _ ........... _ ............ _ ... __ •.. ~. _ ... _. __ »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< =======================================================~================~=== SOIL CLASSIFICATION IB liD" • SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH (FEET) -500.00 UPSTREAM ELEVATION = 420.00 DOWNSTREAM ELEVATION = ELEVATION DIFFERENCE = ::~;tj~5 II O() !:; ~:.:; ., () c) URBAN SUBAREA OVERLAND TIME OF FLOWCMINUTES) -19.640 *CAUTION~ SUBAREA SLOPE EXCEEDS COUNTY NOMOGRAPH DEFINITION. EXTRAPOLATION OF NOMOGRAPH USED. 100 YEAR RAINFALL INTENSITYCINCH/HOUR) :::: 3.161 SUBAREA RUNOFF (CFS) -2.43 TOTAL AREA (ACRES) = 1.40 TOTAL RUNOFF (CFS) -2.43 **************************************************************************** FLOW PROCESS FROM NODE 11.00 TO NODE 9.00 IS CODE ::::: -:r .... ' »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)««< ~======================~=======::::============================~===========::::=== I ESTIMATED PIPE DIAMETERCINCH) INCREASED TO 18,000 DEPTH OF FLOW IN 18.0 INCH PIPE IS 4.1 INCHES PIPEFLOW VELOC1TY(FEET/SEC.):::: 8.1 UPSTREAM NODE ELEVATION = 365.00 DOWNSTREAM NODE ELEVATION = 338.00 FLDWLENGTH(FEET) = 550.00 MANNINGS N -.013 EST I 1"1 {-iTED PIPE D I {)I"1ETER ( I I\ICH):::: 1 B. 00 NUtT1BEr~ DF P I PES .. - PIPEFLOW THRU SUBAREA (CFS) ~ 2.43 TRAVEL TIME(MIN.) = 1.14 TC(MIN.) -20.78 **************************************************************************** FLOW PROCESS FROM NODE 1:1..00 TO NDDE 9.00 IS CODE :::: :1. »»>DESIGNATE INDEPENDEN~ STREAM FOR CONFLUENCE«C« =============================================================~============== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: -r II-1E OF CC)t\ICEI\!TPi.\T I eH..,! (!",! I t\IUTES) ::: 20 .. 7f:l RAINFALL INTENSITY (INCH.!HOUR) = 3.05 TOTAL STREAM AREA (ACRES) = 1.40 TOTAL STREAM RUNOFF{CFS) AT CONFLUENCE -2.43 t CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) ---------------------------------------------------------------------------- 1 12. ~~;9 1 1 . 16 4. 5~.i3 ~2 1 1 .70 9.91 4. 914 ~::; 2. 4~$ ;~() . 7f:l 3. 049 RAINFALL-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 24.86 24.69 17.99 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) = 24.86 TIMECMINUTES) -11.158 TOTAL AREACACRES) = 10.50 **************************************************************************** FLOW PROCESS FROM NODE 12.00 TO NOD!~ 13.00 IB CODE :::: I''', .1::. »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< =================================~========================================== BOIL CU:~StHFICATJ(JN IS "D" SINGLE FAMILY DEVELOPMENT PUNOFF COEFFICIENT == .5500 I NIT I AL SUBAI~E{-1 FLOl!J--LEN(3TH C F:E[7~T) == 14-0. 00 .-UPSTREAM ELEVATION = 438.00 DOWNSTREAM ELEVATION = 435.00 I ELEVATION DIFFERENCE = 3.00 UF\B('~I"~ SUB('-":\E(':~ O\,'Ei=\:LAND T 1 t·-lI:: DF FLDI;J (t1 I NUTES) --9. 787 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.955 SUBAREA RUNOFF(CFS) -.55 TOH~L f~RE{'i (ACf\ES) :::: . 20 '. TOH)L F~:LJNOFF (eFS ) .-_. .. t)~5 **************************************************************************** FLOW PROCESS FROM NODE 13. 00 TO t\IDDE 14.00 IS CODE = 6 ------------------------------------------------------------------------~--- »»>COMPUTE STREETFLDW TRAVELTIME THRU SUBAREA««< ==================================ti==========================ti======================== UPSTREAM ELEVATION == 435.00 DOWNSTREAM ELEVATION = 401.00 STREET LENGTH (FEET) = 1000.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) == 2B.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -6i39 STREET FLOWDEPTH(FEET) == .. 30 HALFSTREET FlOODWIDTH(FEET) = 8.54 AVERAGE FLOW VElOCITY(FEET/SEC.) -3.77 PRODUCT OF DEPTH&VELOCITY = 1.12 STREET FLOW TRAVELTIME(MIN) == 4.42 TC(MIN) = 14.21 100 YEAR RAINFALL tNTENSITY(INCH/HOUR) == 3.896 SO I L CL(.i~3S I F leAT H1N :t SliD II SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICItNT = .. 5500 SUBAREA AREA(ACRES) = 5.40 SUBAREA RUNOFFCCFS) = 11.57 SUMMED AREA (ACRES) = 5.60 TOTAL RUNOFF(CFS) = 12.1~ END OF SUBAREA STREETFlOW HYDRAULICB~ DEPTH (FEE:'T) = .. ~55 HALFBTnE::r:::T FL.ODDvJIDTH (FEE:n ~-~: 11.. o~:~ FL.OW VElOCITY(FEET/SEC.) = 4.54 DEPTH*VELOCITY = 1 .. 58 **************************************************************************** FLOW PROCESS FROM NODE 1 ~~" 00 TD I'.HJDE 1.4.00 IS CODE ~::: 1. »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 AREn -TIMt OF CONCENTRATION(MINUTES) = 14.21 t Rf-HNFAU ... 11'"rn:::r-mITY (INCH. IHOUI:;:)::::: ~5. 90 TOTAL STREAM AREA (ACRES) = 5.60 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 12,,12 **************************************************************************** FLOW PROCESS FROM NODE 15.00 TO NODE 1.6.00 IS CODE = 2 ----------------------------------------------------------~-----------------»»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ===:::::========:::::==================================================:=======~==== SOIL CLASSIFICATIDI"'·J IS liD" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) = 100.00 UPSTREAM ELEVATION = 437.00 [)tl'J·Jt\~t1·rF\·EAI~1 EL...t:\JA'r 1. C)I\~ ::: Ll~::;5" ()() ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) -8.299 100 YEAR RAINFALL INTENSITY(INCH/HDUR) = 5.511 SUBAREA RUNOFFCCFS) -.61 TOTAL AREA (ACRES) = .20 TOTAL RUNOFFCCFS) -.61 **************************************************************~************* FLOW PROCESS FROM NODE 16.00 TO NODE 17.00 IS CODE = 6 ...... o~;:~o:;:~;:~;:.o;:.~;;;~~;~;::;~~~~:~~_.;~~~~~~~~;:~~~~~; .. :~;~~~~~~;=~~o~;~~~o .. :;~;:~;~~~~o.oo~~~~;~~;.~~~~~~~::~~::~o~o~oo",o .. -.-.o .. o.oo",.",.o""-o".-.o .. ,,,-.... 0 ••. __ ._0_ ....... . ==========================================~==~======~======================= UF'STr::E('·~1'1 E!....EV(Yr I ON :::: i.1·:3;~::.i" (:.<) Dm~JNSTnEf:'~II·'1 ELEVtfr I CH'I ::: 402.00 STREET LENGTH (FEET) = 1000.00 CURB HEIGTH(INCHES) = 6" STREET HAlFWIDTH(FEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBEr:: OF HAlFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -9.42 STREET FLOWDEPTHCFEET) = .33 1··!(-ll...y:·STHEET FLOODt.<J I DTH (FEET) =": 10. 2!) AVERAGE FLOW VELOCITYCFEET/SEC.) = 4.07 Pr::ODUCT OF DEPTH&VELOCITY = 1.34 STREETFLOW TRAVELTIME(MIN) = 4.10 TC(MIN) = 12.40 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.254 SO 1 L CL(.:)(3~3 I F I C(.i T ION I ~3 II D II SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREACACRES) = 7.40 SUBAREA RUNOFF(CFS) -17.31 SUMMED AREA(ACRES) = 7.60 TOTAL RUNOFF(CFS) -17.92 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTHCFEET) = .40 HALFSTREET FLOODWIDTH(FEET) -13.51 FLOW VELOCITYCFEET/SEC.) = 4.61 DEPTH*VELOCITY = 1.83 **************************************************************************** I FLDV·J pnOCESB FROM NODE 17 • 00 TO NDDE :l. 4·" 00 IS CDDE :::" 4 --:::::C:·O:t-1°·I:I-I·~r·;-F~·I-f:E=·F~L-r::J·-~1:f:;~E=I-~T~·I-I:I·E--:T-I~I:I-I·-;I·J-l~~I~f.:;::~::--------------------~--- .... .... .... .... .... _.1'" ON .OM I::' M. • .. ' -:." .. J 1./-" I-~ V .. .... . .. "::.. "1 .. ~ _ ""'. .:.) ~"I '\ .. -..... ~ ':" ':" •••• '!" ':" »»>USING USER-SPECIFIED PIPESIZE««< ::::: ::::::::= :~~=::::: =:::: ~=:::::::::::::::""::::::::::: ".-:::::: ::::::: =::::::::"== :::::::::::::::::: =::::::::: :::-~::::~::: :::::::::::::::-.::::::::::::::::: =:::::::: =: =::::::::::::.~ =::::: =::::::::::::~":::".:::::.-:::=:::: ::::::::"::::::: "~: = =::::: "f:::::::::: = :::: ::::::::: DEPTH OF FLOW IN 24.0 INCH PIPE IS 14.3 INCHES PIPEFLOW VELOCITY(FEET/SEC.)::::: 9.2 UF'~rrm::r.1N HODE ELr:~V,.:, T I ON ::: 40:,7::" ()I> DOWNSTREAM NODE EL~VATION = 401,,00 GIVEN PIPE DIAMETER(INCH) = PIPEFLoW THRU SUBAREA (CFS) - TRAVEL TIME(MIN.) = .11 24·.00 NUMBER OF PIPES ~ TCCMIN.) -12.50 **************************************************************************** • --.-~~:::~~~.--~~~~~=~~~~~.--:~~~~~~~--~~~=--.---.-:::..~-~=~--~~~=~-~::=~=-~.-----:~~.:-=~~:.--.~~-~::~:=--:: ... -........ -.~ .... -....... --.. -... --.. --..... -..... ~ »»>DESIGNATE INDEPENDENT STREAM FOR CONFLU~NCE««< »»>AND CDMPUTE VARIOUS CoNFLUENCED STREAM VALUES««< I ========================================================================~=== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) = 12.50 RAINFALL INTENSITY (INCH./HOUR) = 4~23 TOTAL STREAM AREA (ACRES) = 7.60 TOTAL STREAM RUNOFFCCFS) AT CONFLUENCE -17.92 CONFLUENCE INFORMATION: STREAM RUNOFF TIME NUt1BEH (eFS) INTENSITY CINCH/HOUH) ---------------------------------------------------------------------------- 1 12. 12 1.4. 21 ":r .... 1 u B96 ~~ 17. (-,1-. 1·4 1. ~~~ II 50 4. ~t'~3() RAINFALL-INTENSITY-RATIO CONFLUENCE FOHMULA USED FOR 2 STREAMS VARIOUS· CONFLUENCED HUNOFF VALUES ARE AS FOLLOWS~ :;~t.~ II ~~1~,2 ::~9 II <)E1 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) = 29.08 TIME(MINUTES) = 12.504 TOTAL AREACACRES) = 13.20 FLOW PROCESS FROM NODE 18. 00 TO t\IDDE :1.9.00 IS CODE ::::: ~-. 01:: • ..... .... ..... .......... _. _ .................... _. ______ ....... _ ............ 00 ...... _ ............. _ ........ _ ...... ___ ................ _ ........ _ ... _ ................................... 0000, ................. .;.. ........................... _ ........... _, ..... "':" ............... __ ...... _oo ..................... _ ... _ ...... _ ........ -: ..... . »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ==========~=================================~===========================~=== SOIL CU:~ElSIFICAfIOI\1 IS liD" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW~LENGTH(FEET) = 100.00 UPSTREAM ELEVATION = 393.00 DOWNSTREAM ELEVATION = 391.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) -8.299 100 YEAR RAINFALL INTENSITYCINCH/HOUR) = 5.S11 SUBAREA RUNOFF(CFS) -.61 TOTAL AREA (ACRES) : .20 TOTAL RUNOFFCCFS) -.61 **********~***************************************************************** FLOW PROCESS FROM NODE 1.9.00 TO NODE :;:~o oi 00 I E;; CODE :::: -------------------------------------------------------------------------~-- »»>COMPUTE STREETFLOW TRAVELTI~E THRU SUBAREA««< ~:;:::::::::::::::::: :::: ~::::::: ::::::;!:: ::::: ::'.::::::: :-.::: ::::: :::::::::::::::::::::::::::::::: =::::::::: ==:::::::::::::: :::::::::::::: :::: ::::: :-.... ,: :::.:: ::::: ::!o':::::: :::: ::::: :!!.:: ::::: :::: :-.:.': ::::.::::: :::: :::: ::::: :!o .. .: :::: :::: :;:: :::~ ::::: ::::::::: ::::: :::::::::: ::::: :::: ::::::::: ~ ::::::::: :::::::.-:;::: ::::: :;:.-::::::::: ;:::: UPSTREAM ELEVATION = 391.00 DOWNSTREAM ELEVAtION = 378.00 STnEET LEhlErrH (FEET):::: 900. 00 CUF\B HE I bTH ( I NCHEt::l) :::: 6. STREET HALFWIDTI~(FEET) = 28.00 STREET CROSSFALLtDECIMAL) ~ .0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 ~·!·~~·Tnpl'v'EI.".·r I t'·IF.-~: CDI····IPU·fED UG I 1\1(-3 r'IE(.'iN FL.DL'.j (cr::'E» ..... :5. "/0 STREET FLOWDEPTH(FEET) = .28 HALFSTREET FLOODWID'rH(FEET) = 7.71 AVERAGE FLOW VELOCITY(FEET/SEC.) -2.60 PRODUCT OF DEPTH&VELOCITY = .73 STREETFLOW TRAVELTIME(MIN) -5.77 TC(MIN) -14.07 bU.l L t~I._Hb~:i.t F 1 C;f:~·l .t LIN 1 S II II II !:3I NGL..E FPiI·ll I LY DEVEL.OPt'·IENT nUI'IOFF COf:-::FF I C I EI\IT ::::: . ~:i~:;CH) SUBAREA AREACACRES) = 2.90 SUBAREA RUNOFFCCFS) = 6.25 SUMMED AREA (ACRES) = 3.:1.0 T01·AL RUNOFFCCFS) = 6.86 END OF SUBAREA STREETFL.OW HYDRAUL..ICS~ DEPTH(FEET) = .33 HALF STREET FLOODWIDTH{FEET) = :1.0.20 . FLOW VELOCITY(FEET/SEC.) = 2.96 DEPTH*VELOCITY = .98 t *****HH"~**********H*****,"H**************","******************,,******HH e· I FLOW PROCESS FRoM NODE 1. S' • 00 TO NODF.: :;::0. 00 I ~3 CODE '"" ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< =================================~=============================~============ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1. AR~~ TIME OF CONCENTRATION(MINUTES) = 14.07 RAINFALL INTENSITY (INCH./HOUR) = 3.92 TOTAL STREAM AREA (ACRES) = 3.10 TOTAL STREAM RUNOFFCCFS) AT CONFLUENCE = 6.86 **************************************************************************** FLOW PROCESS FROM NODE 21.00 TO NODE :;::":2. 00 I B CODE ::: ---------------------~-----------------------------------_._----------------- »»>RATIONAL. METHOD INITIAL SUBAREA ANALYSIS««< ===================================================================~======== SOIL CI .... {·)SGIFIC?)TIDN IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL. SUBAREA FLDW-LENGTH(FEET) -100.00 UPSTREAM ELEVATION = 394.00 DOWNSTREAM ELEVATION = 392.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) - 100 YEAR RAINFALL INTENSITYCINCH/HOUR) = 5.511 SUBAREA RUNOFFCCFS) -.61 TOTAL AREA(ACRES) = = 2() TOTAL RUNOFFCCFS) -.6:1. **************************************************************************** 22 .. 00 TO NODE 2~::'. 00 I ~3 CODE ::: ---------------------------------------------------------------------------- > > >:> :>COI'iPUTE ~3TI::::EETFLmo.J ·rR{~\"ELT I t"II:: .,. HRU ~3UBAF{E(')< -::: < < <: ::::: :::: =: ~::: ::::: ::::::::::::: :::: == ::-.:::::: :::: ::::: ::: ::::::::: ::::: :::::::::: ~;:::::: ::!! ::'.! ::::: :::::::::: =:: ::::: ::::: .::::::::: :::: :::-.: !:.M.! ::::: ::::: ::::::::::::= ::::: ::::: ::::: !".:: :::: ::::: :'.::::::: ::-.:::::::: ::::: :::::::::: :::::::::: :::::-::::::::: ::::: ::::: :::: ::::; :.-::: ::::: ::::: :::::::::::::::: :::: ::::: :::::::: -::::: = :::: UPSTREAM ELEVATION = 392.00 DOWNSTREAM ELEVATION = 379.00 STREET LENGTHCFEET) = 850.00 CURB HEIGTH(INCHES) = 6. STREET HAL.FWIDTH(FEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FL.OW(CFS) -2.65 STREET FLOWDEPTH(FEET) = .26 HALFSTREET FLOODWIDTH(FEET) = 6.88 AVERAGE FLOW VELOCITYfFtET/SEC.) -2.24 PRODUCT OF DEPTH&VELOCITY = .59 STREETFLOW TRAVELTIMECMIN) = 6.32 TC(MIN) = 1.4.62 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.824 t:>OIL CU-)Sf3IFIC?HICJN IS) liD" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES) = 1.90 SUBAREA RUNOFF (CFS) -4.00 SUMMED AREA (ACRES) = 2.10 TOTAL RUNOFF(CFS) = 4.60 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTHCFEET) = .30 HALF STREET FLOODWIDTH(FEET) = 8.54 FLOW VELOCITYCFEET/SEC.) = 2.72 DEPTH*VELOCITY = .e1 **************************************~***********************~************* ~ ~ t • »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< =============================================================~============== DEPTH OF FLOW IN 18.0 INCH PIPE IS 7.5 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 6.6 UPSTREAM NODE ELEVATION = 379.00 DOWNSTREAM NODE ELEVATION = 378.00 FLOWLENGTHCFEET) = 58.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREA (CFS) -4.60 TRAVEL TIME(MIN.) = .15 TCCMIN.) = 14.77 FLOW PROCESS FROM NODE Z::'.OO TO NODE :20. 00 I~;; CODE :::: 1 -~-------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< =~================================================================~========== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) = 14.77 RAINFALL INTENSITY CINCH./HOUR) = 3.80 nru) L. S T F;: 1::: (-) r1 (-) H E (-I U.K: Fi: EEl ) ::::: :,2. 1 0 TOT('~L STPE(..~t·"1 F~Ut\IOFF (CFB) ('H CONFLUENCE :::: 4.60 CONFUJEnCE I HFcml'1~~ T I ON: STREAM RUNOFF TIME INTENSITY 1\IUt'''lBEF~ (CFS) (1"1 I i'.~.) (I t\!CI .. ·! / HOI..JR) --------------------------------------------------------------------~------- 1 4.60 14.07 14.77 :::::0 ':~'2() 3.800 R{.~INF~lLL .. ·-:rNTENSIlY·-F~ATID cm··.IFlJJENCE FoRlc1UL.A USED Fcm 2 STFi:E{:~l"1~:; VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWB: RUNOFFCCFS) = 11.32 TIMECMINUTES) -14.071 TOTAL AREA (ACRES) = 5.20 **************************************************************************** FLOW PROCESS FROM NODE 24.00 TD NODE 25.00 IS CODE ::: ,..\ .l!:. -------------------------------_._------------------------------------------->:> > > >Rf~T I Dt\j(,:')L I"'IETHOD IN IT I{-iL SUBf.'if:::E(-i ANALYSIS«< < <: ==================================================================~=~======= SOIL CL.AB~3IFICI!::jTInN IS liD" SINGLE FAMILY DEVEL.OPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH (FEET) -100.00 UPSTREAM ELEVATION = 418.00 DOWNSTREAM ELEVATION = 416.00 ELEVATION DIFFERENCE = 2.00 UHBAN SUBAREA OVERL.AND TIME OF FLOW(MINUTES) -8.299 1.00 YE{')P RAINF('4LL INTENBIT"{ (INCI"·I/f-IOI.JF() ::~ ;5. ~7.i11 SUBAREA RUNOFF(CFS) = .. 61 TOTAL AREA(ACRES) = .20 'rOTAL RUNOFF (CFS) -.61 I·.,,·,*****·.·.·.****** .... ·**********·.**·.********H .• *******·*·***********H****->****** FLOW PROCESS FROM NODE 25.00 TO NoDE 26.00 IS CODE~· 6 ----------------------------------------~-----------------------------------, »»>COMPUTE STREETFLOW TRAVELTIME THPU SUBAREA««< ::::::-.:::::: :::-.:::=::-.:: ::.:::::: =::::::::::::.:::::::::::: :-.:::.:: ::-.:::::::!:::.::::: ::::::::::::: :".:: ::::::::::::::::::: :::.:::.-:::-.:::::::::! ::::: :::: =:: ::::: ::::: :::::::: =.:.-:: ::::::::::::::: ::~:: ::::_::::: ==::::::::: ::::::::::::: ::::: ::::::::-.:::::: ::::: :::: ::;.-: ::: ::::::::::::::::::::::::; =:::::.:!::::: ::0 .. ": :::::::: UPSTREAM ELEVATION ~ E3TPEET LJ:::!'H::rTH (P:'EET) ::::: .41.6,00 '900. ()(l DOWNSTREAM ELEVAtION = 375.00 CURB HEIGTHCINCHES) ::::: 6. I • , ~::::I'~'E:,L .1.1 .. · :I I.~.! . .! !--1i..JI',!E:I::'J:t: DF i"I(~d .... F'::::l T hE:.E:Tb i,.,;(tFFV I hiD h:l...,II'·"IUFF' "::: :;;:: **TRAVELTIME COMPUTED USING MEAN FLDW(CFS) -12.05 STREET FLOWDEPTH(FEET) = .33 HALF STREET FLOODWIDTHCFEET) = 10.20 AVERAGE FLOW VELOCITY(FEET/SEC.) = 5.21 PRODUCT OF DEPTH&VELOCITY = 1.72 STREETFLOW TRAVELTIME(MIN) = 2.88 TCCMIN) = 11.18 100 YEAR RAINFALL INTENSITY (INCH/HOUR) = 4.547 BO I L CLAGG I F I C?~T ION I £; II D II SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES) = 9.10 SUBAREA RUNOFF (CFS) - SUMMED AREA (ACRES) = 9.30 TOTAL RUNOFF(CFS) -I·.., .. :t" ":f' ( .,::' •• :" n -.:'10 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .40 ~IALFSTREET FLOODWIDTH(FEET) -13.51 FLOW VELOCITY(FEET/SEC.) = 6.01 DEPTH*VELOCITY = ********************************~******************************************* ~LOW PROCESS FROM NODE 26.00 TD NODE ~30. 00 I~) CClDE ::::: »»)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USIND USER-SPECIFIED PIPESIZE««< ::::: ::::: =:: :::-.:::::: ::::: ::::: ::-.: :-.::: ::-.:: ::::: :::::::::: =:: ::::: ::::: ::::::: :::::::::::.:::::::::::: :::: :::: :::::::::::::! ::.!:-::'.::~::::::: ::::: ::::: :::= ~::: ::::: :::::::::: :::: =:: ::::: :.::: :::: ::::: ::::: :::: :::: ::::: :::: ::::: ::!:: ::::; ::::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: ~::: :;:: :::: ::::: =::::::::::::::: :'.:: :::: :::: :::;::::: :;:: DEPTH OF FLOW IN 24.0 INCH PIPE IS 9.9 INCHES PIPEFLOW VELOCITY(FEET/SEC~) = 19.2 UPSTREAM NODE ELEVATION = 375.00 DOWNSTREAM NODE ELEVATION = 368.00 FLOWlENGTH(FEET) = 70.00 MANNINGS N = .013 GIVEN PIPE DIAMETERCINC~n = 24.00 NUMBER OF PIPES - PIPEFlOW THRU SUBAREA (CFS) -23.36 TRAVEL TIMECMIN.) = .06 TC(MIN.) = 11.24 :I. ***************~************************************************************ FLOW PROCESS FROM NODE :28.00 IE3 CODE = ................. _._ ... __ 00 .. __ 0 ..... _ .....• ~ ........................... _ ........................... _ ............. _oo."!'" ." ................. __ ..... _ ............... _ .. __ ..... _ ............ _ ........................... _ ...... _._ ... _ '_'''._ ..... _ .. _ ..... 00 .......... _-__ .~ ... _ ........ _._ .......... -.. ....... _ .... . »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ========================================================~=================== f30IL. CL..Am:;IFIC;{)TIm\1 IS liD" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH (FEET) -100.00 UPSTREAM ELEVATION = 393.00 DOWNSTREAM ELEVATION = 391.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) -8.299 100 YEAR RAINFALL INTENSITYCINCH/HOUR) = 5.511 SUBAREA RUNOFF(CFS) -.61 TOTAL AREA (ACRES) = .20 TOTAL RUNOFF(CFS) -.61 **************************************************~************************* FLOW PROCESS FROM NODE 2t3 . 00 TD t'·,IDPE :::::9. 00 I S CODE :::: ----------.------------~-----------~--------~-------~------------------------»»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ==================~===~===================================================== UPSTREAM ELEVATION = 3r:;'1 .. ()() ~::;'70" 00 STREET LENGTH (FEET) = 700.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 2t3.00 STREET CROSSFALLCDECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 . **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -6.30 STREET FLOWDEPTH(FEET) = .30 HALFSTREET FLOODWIDTH(FEET) = 8.54 {~)VEH{~GE FLCH,·I VEL. DC I TY (FEET iEEe,,) ..... '::::" 7:2 PRODUCT OF ntPl'H&VELOClTY = 1.10 ..... ----------------....----.,..-----------------~--~~~~~- 1 00 'lE(iF~ Fa.) I NFALL I NTEI'H31 TY ( I hlCH I HDUR) ::.:: ·4·. 4B:t ~:301 L CL{~SE I F I C{) T lOt'..! I S II D II SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES) = 4.60 SUBAREA RU~OFF(CFS) = 11.34 SUMMED AREA(ACRES) = 4.80 TOTAL RUNOFF(CFS) = 11.94 END OF SUBAREA STREET FLOW HYDRAULICS: DEPTHCFEET) = .35 HALFSTREET FL.OODWIDTH(FEET) = 11~02 FLOW VELOCITY(FEET/SEC.) = 4.48 DEPTH*VELOCITY = 1.~5 **************************************************************************** FLOW PROCESS FROM NODE ~;~9. 00 TD NODE ~50. 00 I S CODE ::: ----------------------------------------------------------------------------»»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ::::::.:: :=.::::: :. .. .:: :::: ::::::::: :::::::::: ::::: :::: ::: :::: ::::::::: ::.-:::::: ::;::::: ::::::::::::::.: :::: :::: ::::::: ::::: ::''::::::::::: ::::: :-:: ::::: ::::: ::::: ::::: :::: :::: :::: :::::~::: =:-.: ::::: ::.::: ::::: :;:.0: ::::: ::::: :::::'!!::: ::::: ::::: ::::: :::-.: ::::: ::::: ::::: :::: ::~: ::::: ::::: ::::: ::::::::: ::::::::: ::-.: :::: :::::::::::::::::=. :::: ::::: DEPTH OF FLOW IN 24.0 INCH PIPE IS 8.8 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 11.5 UPSTREAM NODE ELEVATION = 370.00 DOWNSTREAM NODE ELEVATION = 368.00 FLDWLENGTH(FEET) = 50.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES -1 PIPEFLoW THRU SUBAREACCFS) -11.94 TRAVEL TIME(MIN.) = .07 TC(MIN.) = 11.S1 **************************************************************************** FLOW PROCESS FROM NODE 29.00 TO NODE 30" 00 I S CODE ::: :> :>:>:> :>(~DD I T I ON OF SUBAREA TO r··1f.i I Nt.. I NE PE{:H< FLCl l.<J < <: < <: < • =:::=;~;~;~;=:~~~~~:=~~:~:;~~~~~=:c;~~~~~:~~~7~~~~~~~~~;~~:~::::~~"=:=:~~::~~~;=~~:~":::=:::~"=~=:=::'":::::::=:=:::=~""~"::::=~==:===:: SO IL CLJ~SS I F IC(:\T ION IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES) -9.30 SUBAREA RUNoFF(CFS) -22.82 TOTAL AREACACRES) -14.10 TOTAL RUNOFF (CFS) = 34.77 TC (M IN) =~ 11 • 5:t. **************************************************************************** FLOW PROCESS FROM NODE ::::;0.00 TO hlODE 4A. 00 I S CODE ;::: ,<.1. ----------------------------------------------------------~----------------- >:»»CoMPUTE PIPEFLoW TRAVELTIME THRU SUBAREA<<:<<< »»>USINB USER-SPECIFIED PIPESIZE««< ============================================================================ DEPTH OF FLOW IN 24.0 INCH PIPE IS 18.7 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 13.2 UPSTREAM NODE ELEVATION = 368.00 DOWNSTREAM NODE ELEVATION = 342.00 FLDIi·Jl..ENGnl (FEET):::: El50" 00 t;!("')NN I NBS N ::::: " 013 GIVEN PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES -1 PIPEFLoW THRU SUBAREA(CFS) -j4.77 TRAVEL T I !"1E (1\1 IN.):::: 1 . 07 TC (~1 IN.):::: 12. 5B I "!l' * * ,~. ,* -l\. ,f:!.--)1. :!l. :!l . .;~. -i(-:1.. -i(--)E. -)E. -l\. "iI.. -l\. :!I. -)!. -)(. ,",. ~,! . .;~. ,'(o.)I .• )!-oli· :!I. * -)Eo -l\·';f~"(--)( .. l\. -l'!. 1! .. )( .. ~ -)(. -)(. * ~~. -)h'!··*~· 1!' .,~. -l~ .;~, :i!. -)t. 1!."* *.,>!-.* . .,~. ~~. 7!. 7!. il· .~. ·M· -)!-,,>!-,,><. 7~ ~'\. -Xo .j(. ~~. . FLOW PROCESS FROM NODE 30.00 TO NODE 44.00 IS CODE = 1 . ~ ....... _ ....... -0 .......... ~_ .. _0 .. _0 _ ....................... _ ........ o" ..... _ .............. _ ... _ .......... _ ... MO .. _ ........ ___ • __ • __ 0 ............ _ .................. ,.;. _ ............... _ ....... _ ........................................... _ ......... 0 ..... _ ....... ~ ................ _"'."_ .................... ""0 .......... ~ ........ 0 •• »»>DESIGNATE INDEPENDENT STREAM FOR CoNFLUENCE««<: ==::::~=============::::======================================~===========~==~==== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE~ TIME OF CONCENTRATION (MINUTES) = 12.58 RAINFALL INTENSITY (INCH./HOUR) = 4.21 TOTAL STREAM AREA (ACRES) = 14.10 FLOW PROCESS FROM NODE ~~; 1 • 00 TO hlODE ~32. 00 I ~3 ConE :::: --------------------------------~-------------------------------~-----------»»>RATIONAL METHOD INITIAL SUBAREA ANALY9IS««< I =~~~~I~t~';~I-~li~I-~':'~I~~ ,.I,1J:~'·A~":' ~E~A~.I.~ ~1~1:(~J;~.'J:;L;:E~I:\~f~~I~I;;(:I;E~F.~::l ~i·.·:::;::;: :;~::: ~:~ ::::: :::::~ :.::::: :;~ ::::: .-~ :::: .~~ ::: ::::: :::: :::::: :::::::: ::::::::::",,:: ::"" :::::::: ~-,:::::::: = . Co . f·, ___ .J.!::' n._ __ It ._ q .. J 1, _ .. _ .'-100.00 • I...JPf:lTRE{·)t'l F.::LEW)T I ClN =" :~P7 .00 DOWNS1~EAM ELEVATION = 375.00 ELEVATION DI~FERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW (MINUTES) -8.299 100 YEAR RAINFALL INTENSITYCINCH/HOUR) = 5.511 SUBAREA RUNOFF(CFS) -.61 TOTAL AREA (ACRES) = .20 TOTAL RUNOFFCCFS) -.61 **************************************************************************** FLOW PROCESS FROM NODE 32.00 TO NODE 33.00 IS CODE = 6 ----------------------------------------------------------------------------»»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ============================================================================ UPSTREAM ELEVATION = 375.00 DOWNSTREAM ELEVATION = 372.00 STREET LENGTH(FEET) = 580.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOWCCFS) -2.60 STREET FLOWDEPTHCFEET) = .30 HALFSTREET FLOODWIDTHCFEET) = 8.54 AVERAGE FLOW VELOCITY(FEET/SEC.) -1.53 PRODUCT OF DEPTH&VELOCITY = .46 STREE~FLOW TRAVELTIME(MIN) = 6.31 TC(MIN) = 14.61 100 YEAR RAINFALL INTENSITY (INCH/HOUR) =3.826 BOIL CU-4mnFICATION IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEPFICIENT = .5500 SUBAREA AREA(ACRES) = 1.90 SUBAREA RUNOFF (CFS) -4.00 t;UI'II"1ED {-IREA ((~CnES) ~": ::-;~ u 1. <) Ten" (~L.. F~UNOFF (Cr:'El> ..... 4 u 60 END OF SUBAREA BTREETFLOW HYDRAULICS: DEPTH(FEET) = .35 HALFSTREET FLOODWIDTHCFEET) -11.02 FLOW VELOCITY(FEET/SEC.) = 1.73 DEPTH*VELOCITY = .6~ **************************************************************************** FLOW PROCESS FROM NODE 33.00 TO NODE 37.00 IS CODE = 4 -----------------------------------------------------------------------~~--- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>U8ING USER-SPECIFIED PIPESIZE««< =====================~===================~=~=========~=============~=======~ I DEPTH OF FLOW IN 18.0 INCH PIPE IS 4.4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 13.6 UPSTREAM NODE ELEVATION = 372.00 DOWNSTREAM NODE ELEVATION = 363.00 ~LDWLENGTH(FEET) = 70.00 MANNINGS N ~ .013 GIVEN PIPE DIAMETER CINCH) = 18.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREA (CFS) -4.60 TRAVEL TIME(MIN.) = .09 TC(MIN.) = 14.69 :l , **************************************************************************** FLOW PROCESS FROM NODE ~::'5. 00 I B CODE ::: _ ... _ ...... __ .. oo ... _ ..... _0_ ........ _H' ....... _. __ • __ "0, ................ __ ...... __ ............... 00 ........ .:... .......................... _ ..... _ .......... ~ ................... 0 'rOO' _ ..... _ "oO'''_''_ ...................... ..:. .. N ................ ""_ ........ f •..... _" ................................ _ ....... _ ... "~ __ •....... __ ....... . »»>RATIONAL METHOD INItIAL SUBAREA ANALYSIS««< • BOIL CI....{~~3~3IFIC(.:)TIUI\~ I!:3 "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLDW-LENG'rH(FEET) -100.00 UPSTREAM ELEVATION = 376.00 DOI;'.JHS·rnE{:')'··1 ELEWH I ON ::: ~::74, 00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) - 100 YEAR RAINFALL INTENSITYCINCH/HOUR) = 5.511 SUBAREA RUNOFF(CFS) - . .61 TOTAL AREACACRES) = .20 TOTAL RUNOFF (CFS) -" 61 **************************************************************************** . FLOW PRUCEBS FROM NODE ~~5. 00 TO NDDE :36. 00 I ~:3 CODE :::: »»>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA««< ::::: ::::"::::: :.:::: ::. .. .: ::."!: ::::: ::::: :::.:::::: ::::: ::::: ::::: ::::: !".!!: !!::: ::::: ::::: ::::: ::::: ::::: :.::: :::::::::::::: =: ::::: ::::: :::: :::: ::::: :.:::::: ::::: ::.::: ::::: :.":.:: ::::: ::::: ::::: :.::: :::: :::::::::: :::-.: ::-.:: ::::: ::::: ::.;: ::::: :::::::::::::;::::::::::: ::::: ::::: :.::: :::-.::::::;:;: :::=::~ :::: ::::: ::::: :::: ::::: ::::::;: :::: ::::: :::::::: :::::-::::: . - UPSTREAM ELEVATION = 374.00 DOWNSTREAM ELEVATION = 372.00 f.:nnEET U~:I\IGTH (FEET)::::: ~)()(). 00 cum:.! HE I Fn··! ( INCHES) ::::: 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBEn OF HALFSTnEETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS} -2.29 STREET FLOWDEPTH(FEET) = .30 HALFSTRE~T FLOODWIDTH(FEET) = 8.54 AVERAGE FLOW VELOCITY(FEET/SEC.) -1.35 PRODUCT OF DEPTH&VELUCITY = .40 STnEETFLOW TRAVELT1ME(MIN) = 6.18 TC(MIN) = 14.48 100 YEAn F\:('HNF{:~LL INTEHSITY (I!'·.ICH/HOUFU ::::: 3. B4r.,' f.lOIL CLAEBIFIC?HIClN IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES) = 1.60 SUBAREA RUNOFF (CFS) -3.39 SUMMED AREA(ACRES) = 1.80 TOTAL RUNOFF (CFS) ~ 3.99 END OF SUBAREA STREETFLOW HYDRAULICS~ DEPTH (FEET) = .35 HALFSTREET FLOODWIDTH(FEET) = 11.02 FLOW VELOCITY(FEET/SEC.) = 1.50 DEPTH*VELOCITY = .52 **************************************************************************** FLOW PROCESS FROM NODE ~::6" 00 TO NODE 37" 00 I G CODE :::: .<.J. ----------------------------------------------------------------------------»»>COMPUTE PIPEFLOW TRAVELTIME THRU 6UBAnEA««< »»>USING USER-SPECIFIED PIPESIZE««< ==============================================================~===========~= DEPTH OF FLOW IN 18.0 INCH PIPE IS 3.8 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 14.7 UPSTREAM NODE ELEVATIOH = 372.00 DOWNSTREAM NODE ELEVATION = 363.00 FLOWLENGTHCFEET) = 50.00 MANNrNGB N = .013 GIVEN PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES -1 PIPEFLOW THRU SUBAREA(CFS) -3.99 TRAVEL TIME(MIN.) = • O,~, TC(MIN.) = 14.53 .l+ 1:-.r." 'Y---l<:-.lE--)!, .j(--l(--l\' -?{-.1(-i{-"*· -l(-*"* f.:-* 1::-f.:-.* 1:--Y--·f;' * .j(-.y: -1(-~-·r" .y,-.~;. .y,--:;-1:-.* .):'" -l(-.!(-.* .r.-* t;-* .~, -x-.l(-.l(-~, ·)(··i" 'fr ·1 .. t;-·11· .j(-¥, '1(, '!': .~;. .j( •. 1\.'* .~~ * -Y" * 1\-.* .j{'l<!' * 'l~ .f.. ~'1- FLm'J PFmCESf3 FF~Dt1 NODE 3b. 00 TCl NClDr:: ~$7 • 00 I S CODE:. ::: B I ~ ~~~~ ~ ~~ ~~~~ ~i ~ ~ i ~~~ ~i ~~ ~ ~ ~~ ~~ ~~ ~ ~~ ~~~~ ~~ ~i ~~ ~ i~ ~:~ i~ ~~ ~~ ~~; ~~ ~~~ ~~ :~~ ~~ ~ ~~ ~~:~~~: ~~ ~:! ~~! ~~~:i :~~ ~~~ ~ :~~ ~:~ ~~.~ :~~ ::~ :~~ :~~ ::~ ~ .. : ~~ ~~ ~~ ~~: :::.:.:.~ ~~~ ~~ ~~ ~ ~.~~. ~':. ----------------------------------------------------------------------------100 YEAR RAINFALL IHTENSITYCINCH/HOUR) = 3.B~9 . E1() I L: CL('~EE 1 F I CAT ION IE 11 D 11 SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES) -2.20 SUBAREA RUNOFFCCFS) -4,,65 TOTAL AREACACRES) -4.00 TOTAL RUNOFF (CFS) = 8.64 l~(MIN) = 14.53 **************************************************************************** FLOW PROCESS FROM NODE :37. 00 TO I\IClDE ·44. 00 I S CODE '-::: 4 ---------------------------------------------------------------~------------ »»>COMPUTE PIPEFlOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< • ==e~:;~:g~=~~~~:I~::~~~~~~~g~~~!;~~~~:==~~;=~~~~~;========================"'= ~ UPSTREAM NODE ELEVATION = 363.00 DOWNSTREAM NODE ELEVATION = 342.00 FLOWLENGTHCFEET) = 500.00 MANNINGS N = .013 GIVEN PIPE DIAMETERCINCH) = 18.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREACCFS) -8.64 TRAVEL TIME(MIN.) = .77 TCCMIN.) = 15.30 **************************************************************************** FLOW PROCESS FROM NODE ~;:'7 .. 00 TO NODE 44. ()() I f.3 CODE ::::: :I. »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< --------------------------------------------------------------------------------------------------------------------------------------------------------CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 AREl TIME OF CONCENTRATION(MtNUTES) = 15.30 RAINFALL INTENSITY (INCH./HOUR) = 3.71 TOTAL STREAM AREA (ACRES) = 4 .. 00 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE:::: 8.64 **************************************************************************** FLOW PROCESS FROM NODE 38.00 TO NOD~ 39.00 IS CODE = 2 • .-"'-.;:~;~: .;: .;: ~~ ~ ~~ ':~-~~; ;~~~; ~~ '--~:~f~ ~ ~.~~; ~~; ._-.~-~~ ~-~~ .~-~ ~~~ .--;~;~;. ~~ ~;;;,~ ~ .--;.~ ~.~;.~ ~~ ~; ~; :~~ :~~: :~~ :~~ ... -._-"'-... -.. --... -... -... -._-.-... -_.-._ ...... " ...... --" -" _ .... " -..... I ===========================::::================================================ SOIL CU~SbIFICf.'rrI()J\1 IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT:::: .5500 INITIAL SUBAREA FLOW-LENGTH (FEET) -100.00 UPSTI::::E(..~ll··1 El...Elv'AT I ON :::: :~~;~}7 .00 DOWNSTREAM ELEVATION = 354.00 ELEVATION DIFFERENCE = 3 .. 00 URBAN SUBAREA OVERLAND TIME OF FLOWCMINUTES) -7.978 *CAUTION: SUBAREA SLOPE EXCEEDS COUNTY NOMOGRAPH DEFINITION. EXTRAPOLATION OF NOMOGRAPH USED .. 100 YEAR RAINFALL INTENSITYCINCH/HOUR) = 5.653 SUBAREA RUNQFF(CFS) -.62 TOTAL (~nEJ.:) «:~CFt:I::::S) :c': • :::~o TO'rr-)L m.!t'IDFF C CFS) ... -.. 6:::~: **************************************************************************** FLOW PROCESS FFt:OM NODE ::~(1. 00 TO I\lODE 40.00 IS CDDE ::::: ----------------------------------------------------------------------------»»>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA««< ::::::::;:::::: ::::: :::.::::: =.:::::::::: :::: ::::: :::::::; ::::: :::: :::: :::::::::: ::::::::: =:::::::: :::-:::: == ::.-:: :!'.: :::: ::!!:::: ::::: ::::: ::::: ::::: ::::: :::= :::: ::::: ::::: ::::: ::::: ::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: :::::::::: ~:::: ::::: ::::: ::-::: ::::: ::::: ::::: ::::: :::: ::::: ::::: ::::: :i::: ::::: ::::: ::::: :::::::: ::::: UPSTF\E(..\t'1 ELEVAT I m,1 ::::: 354. 00 DmlJI'~STRE{\1'1 ELE\)ATI ON ~.::: ::::;5(1 .. 1)<) STREET LENGTH (FEET) = 500.00 CURB HEIGTI~(INCHES) = 6. STR~ET HALFWIDTHCFEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) -8.52 STREET FLOWDEPTH(FEET) ~ .38 HALFSTREET FLOODWIDTHCFEET) = 12.68 AVERAGE FLOW VELOCITY(FEET/SEC.) = 2.47 PFWDUCT OF DEF'TH~/)EU)C 1'1"\' =. • 94 STREETFLOW TRAVELTIME(MIN) =. 3.38 TC(MIN) = 11.35 100 YEAR RAINFALL IN'fENSITY(INCH!HOUR) = 4.502 .... -----------------------------~----------- • SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 BUB{)nE{·) PlnE{~ ((')CF::EG) :.:: 6 .. 40 E:LJI::(~F~EPl PLH··.IOFF ([TEl) :::: 1. ~::; n B!:3 SUMMED AREACACPES) = 6.60 TOTAL RUNOFF (CFS) -16.47 END OF SUB(il::;:E(.·:l BTREETFLOltJ 1-IYDF:(.:iUL I CS ~ DEPTH(FEET) = .46 HALFSTPEET FLOoDWIDTH(FEET) -16.82 FLOW VELOCITY(FEET/BEC.) = 2.79 DEPTH-:'~l·""ELOC I TY ::::: »»>COMPUTE pIPEFLOW TRAVELTIME THRU SUBAREA««< »»>UBING USEP-SPECIFIED PIPESIZE««< =============================================================================== DEPTH OF FLOW IN 18.0 INCH PIPE IS 8.2 INCHES PIPEFLOW VELOCITY(FEET/SEC.) ::::: 20.9 UPSTREAM NODE ELEVATION = 350.00 DOWNSTREAM NODE ELEVATION = 342.00 FLOWLENGTHCFEET) == . 60.00 MANNINGS N = .012 GIVEN PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES -1 PIPEFLOW THRU BUB AREA (CFS) -16.47 TRAVEL TIMECMIN.) == .05 TC(MIN.) = 11.40 **************************************************************************** 40.00 TO NODE 44 .. 00 IS CODE == 1 -------------------------------------------------------~--------~----------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< =============~=============================================================== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATIONCMINUTES) = 11.40 RAINFALL INTENSITY (INCH./HOUR) = 4.49 TOTAL STREAM AREA (ACRES) = 6.60 TOTAL BTREAM RUNOFFCCFS) AT CONFLUENCE = 16.47 **************************************************************************** FLOW PROCESS FROM NODE 4·1 • 00 TO NODE 42 .. 00 IE CODE ::::: ---------------------------------------------------------------------------- :> >:>:> :>H(tT I CJN{~L r'IETHDD 11''..\ I T I Pd.... BI..JB (.·)1:;: E(') m~r-~LY~3 I S<: <: <: < < ::::: ::::: :::: ::::: :::: :-.:: :::: ::::: ::::: :'.:: ::::: ::::::::: :::: :::::::::: ::-.! ::: ::::: ::::::::::::: =. :-.:.: ::::: ::::: :::::::::: ::::: ::::: :-.::: ::~:: ::::: ::::: :::::~: ::::: ::::: :.:::::::::::: ::::: ::-.::::::::: :;::: ::-.:: ::-.:: ::::: :=::::: :::: :::: ::::: ::::::::: ::::: :::::;:::: :::-.: :;:::.:::::.:::: ::::: :::: :::: :::: ::::: ::::-.:: :::: :::::::: :::!! .:::::::::: SOIL CLASBIF'IC('HIOhl IB "D" SINGLE FA~IIlY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTHCFEET) -100.00 UPSTREAM ELEVATION = 365.00 DOWNSTREAM ELEVATION = ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTEB) -8.299 100 YEAR PAINFALL INTENSITYCINCH/HOUR) = 5.511 SUBAREA RUNOFF(CFS} -.61 TOTAL APEACACRES) ~ .20 TOTAL RUNOFFCCFS) -.61 **************************************************************************** FLOW PROCESS FROM NODE 42 .. 00 TD t···HJDE -~-------------~------------------------------------------------------------ I >:>:>:> >Cm'IPUTE STHEETFUJ~'J n;:{y,,'El. T I t;IE THmJ !:3UB('~F~EA< <: < -::: <: ==~;~~~~;~=~~~~;~7~~=:====;:;~~~===~;~~;~~~;~=~~~~;;i;~=~==~=;;;~~~~======== STREET LENGTH (FEET) = 600.00 CURB HEIGTHtINCHES) = 6. STREETHALFWIDTHCFEET) = 28.00 STREET CRDSSFALLCDECIMAL) = .0200 I SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLDW(CFS) _. 2.36 STREET FLOWDEPTH(FEET) = .23 HALFSTREET FLOODWIDTH(FEET) = 5.23 PRODUCT OF DEPTH&VElOCITY = STREET FLOW TRAVELTIME(MIN) = 3.32 .'70 TC (1·'1 IN) _. II " 62 1 00 ·"YT('~P r:;:A I NF (.:, l.. 1.... 1 NTEJ'-IS I TY ( I NCI-U 1··mUH) ::: 4. 436 SOIL CL.{iE/:3IFIC(4TION IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREACACRES) ~ l.40 SUBAREA RUNOFF(CFS) -3.42 SUMMED AREA(ACRES) = 1.60 TOTAL RUNOFF(CFS) -4.02 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .26 HALFSTREET FLOODWIDTH(FEET) -6.88 FLOW VELOCITY(FE~T/SEC.) = 3.40 DEPTH*VELOCITY = .90 **************************************************************************** FLOW PROCESS FROM NODE 43.00 TO NODE 44.00 IS CODE = 4 ---------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< })}}}USING USER-SPECIFIED PIPESIZE««< ::::::::-.:::::::::::::::::::::::::::::::;:::::::::.::::::::::-.:!::::::::::::::::::::::::::::::::::::-.::::::::::::::::::::::::::::=::."::::-.::::::::::::===::::::::::::::::::::::::::::::::::::::::::-.:::::::::::::::::::::::.:::::::-.::.:::-:::::::::.=::::::::::::::::::::. .. .:::::::::::::::::==::::::.:::::::.;:::::::::::::::: DEPTH OF FLOW IN 18.0 INCH PIPE IS 6.7 INCHES PIPEFLOW VElOCITYCFEET/SEC.) = 6.7 UPSTHEAM NODE ELEVATION = 343.00 DOWNSTREAM NODE ELEVATION = 342.00 FLOWLENGTHCFEET) = 50.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES -l PIPEFLOW THHU SUBAREA (CFS) -4.02 TRAVEL TIME(MIN.} = .12 TC(MIN.) = 11.74 **************************************************************************** FLOW PROCESS FROM NODE 43.00 TO NODE· 44.00 IS CODE = 1 • . ..... -~:. ~~ ~~ ~~. ~~. 'T~) 'E:~ :.:: ~·I:· ·r·: '1:'1 ~~ ~1:::='-'1·--t ·I-T:' ~~ -!.~ :~~ t····l-I·'· ~~ t--I:-r -... ~.: ~T: I--~ 'E-~~ I~~·! -_. := r-:-):: _. -r·: ·c·]-!~~I:= 1--'-'· 'r:= ~-, ;~: -E~~ ~:. ~:. ~:: .. ::. ~:. _ .......................... _. -.-.-. _ .. -_ ... ---_. -_. ----... -_. -- ......... ,: .. ,:-.. :.... _.:)....'J~. '''1 I:::' _ \,.~ t:..~ •... r.:. ~ .... I I:': \ ..... j ,.!... .::. r1 '{ r·... 1"\ .... ' \, 1''' ..... _ :~ .. I-". ~ ... ' ....................... . »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< ========~=:===============~=======================~======~===~==========~=== CONFLUENCE VALUES USED FOH INDEPENDENT STREAM 4 ARE: TIME OF CONCENTRATION(MINUTES) = 11.74 RAINFALL INTENSITY (INCH./HOUH) = 4.41 TOTAL. STREAM AREA (ACRES) = 1.60 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 4.02 CONFLUENCE INFORMATION~ STREAM RUNOFF TIME INTENSITY NI...llviBE::F\ ( CFS ) ( r··1 IN.) ( INCH / I·-IOUR ) ..... 00-....... _ ............ _ ............... _ .................... _ ........... _ ..... _ ..... __ • ___ ...... _. __ ... _. _ ........ _ ........ _. _ ... _-.. oo. _ ........ __ ..... _ ........ _ ... _ ............. _ ..... 00 __ .................... _____ 00 ..... 00 ... 00 ............. _ ......... , .................... _ .. _ ............... __ .............. . 1 ::51.1 n '''Y''7 1 :;;::. ~5t3 4. ~,~: 1 ~~; { { ::';:: 8. 64 1 ~5. :;::0 -:!' ,_I tl 714 "=!' 16. 1..~7 1. 1. 40 4 . ..q·90 ._' " 1.1· IL ():;:: 1 1 . 74 4 . 406 RAINFALL-INTENSITY-RATIO CONFL.UENCE FORMULA USED FOR 4 STREAMS VARIOUS CONFlUENCED RUNOFF VALUES ARE AS FOLLOWS: 61.68 56.30 60.18 60.71 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFFCCFS) = 61.68 TIME(MINUTES) = 12.583 TOTAL AREACACRES) = 26.30 I ******.·***;,.·*·**.·***.·.··"**********··'·*H***·*·~***"******************************* FL.O~ PROCESS FROM NODE 44.00 TO NODE 50.00 IS CODE = 4 -------------------------------------------------------------~------~-------}»})COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< =========================~==============~=============~=========~=~========= \ UPSTREAM NODE ELEVATION = 342.00 DOWNSTREAM NODE ELEVATION -309.00 FLDWLENGTH(FEET) = 850.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES -1 PIPEFLOW THRU SUBAREA(CFS) -61.68 • TF;:I~·~VE:L 'r I !'IE (t·1 I 1\1.) :::: TC~ ( r'l IN.) ~::: • I **************************************************************************** 1.1-4. 00 TD NODE t"50" 00 IS CODE :::: :l »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ..... _ .............. ______ ....... __ .................. _ .. ___ ........ _ MH' ............... _ ............ _ ........... _ ..................................... _ ........ _.,_ ............ _. _. ___ ........... _ .............. __ ... ___ .. __ .. _ .......... _ ...... _ ....... _ ......... _-..... _ ....................... .. ----------------------------------------------------------------------------CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE~ TIME OF CONCENTRATION (MINUTES) = 13.41 RAINFALL INTENSITY (INCH./HOUR) = 4.04 TOTAL STREAM AREA (ACRES) = 26.30 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 61.68 **************************************************************************** FLOW PROCESS FROM NODE 'Q·t1. 00 TO NODE _ ••• __ .......... __ .. 0 ...... , ......... , .......... __ ............. _ ..... _. _ ... __ ........ _ .......... N'" .. _ •• _ ............. _ ................ __ ... N ...... OOOO' MOo ........ _ .. ;;,. .. _ .............................. _ ........ ""!"" _. ___ H' ..... _ ... __ ............................ _, .................... _. _. ___ ................ _ ...... ~ »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ======================================================~===================== ~'3IJ I L CL.A~EHF IC('H ION IS "D" B I NC7JL.E F (.':\1 1 I L''{ DEVELOPt'1ENT F~'-Jt\Ic)FF [[JEFF I C I EN"£' ::.~: . ~5~:'iOO INITIAL SUBAREA FLOW-LENGTH (FEET) -100.00 UPSTREAM ELEVATION = 343.00 DOWNSTREAM ELEVATION = 341.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOWCMINUTES) -8.299 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 5.511 SUBAREA RUNOFF (CFS) -.61 To'rAL AREnCACRES) = .20 TOTAL RUNOPFCCFS) -.61 **************************************************************************** FLOW PROCESS FROM NODE 4'1'. 00 TCl !\IClDE ~30" 00 1£3 CDDE:. ::: t,1 ------------------------------------------------------------------------~--- ============================================================================ UPSTREAM ELEVATION = 341.00 DOWNSTREAM ELEVATION = 309.00 STREET LEhlGTH (FEET):::: 800. 00 Cl...lFi:B !-·IE: I 13TH C I "·.ICI"·IES) = 6. STREET HALFWIDTHCFEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 ·)!··)!·n:;:{·WE:l.T I I'IE CC}tolPUTED LJS I NG I"'IE(,·W,IFL..D!/·) (CF~;;) _.. 4. 1. D STREET FLOWDEPTH(FEET) = .26 HALFSTREET FLOGDWIDTH(FEET) = 6.88 ("iI.)EF.;:r-~GE FLO\lJ VELDC I TV (FEET /SEe.) _. ::::. .. 5::::- PRODUCT OF DEP1H&VELOCITY = .93 STREETFLOW TRAVELTIME(MIN) = 3.78 TCCMIN) = 12.08 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.326 SDIL CL(~~3EIFlc(.rrlm··~ IS liD!! SINGLE FAI'!ILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA (ACRES) = 2.90 SUBAREA RUNOFF (CFS) -6.90 SUMMED AREACACRES) = 3.10 TOTAL RUNOFF (CFS) -7.51 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .30 HALF STREET FLClODWIDTH(FEET) -8.54 FLDW' VELOCITY(FEET/SEC.) = 4.43 DEPTH*VELOCITY = 1.32 *************************************************************~******~4***~*4 FLOW PROCESS FROM NODE . 49.00 TO NQn~ !.':50.00 IS CODE = • • > > >:> >DES I (31\4{)Tr:~ 1 NDI:::PEhIDENT t3·rFi:E(.~1Ivl FUFi: COhIFL..UENCE< < -< <. <. »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE~ TIME OF CONCENTRATION (MINUTES) = 12.08 RAINFALL INTENSITY (INCH./HOUR) = 4.33 TOTAL STREAM AREA (ACRES) = 3.10 TOTAL.. STREAM RUNOFF(CFS) AT CONFLUENCE = 7.51 C~NFLUENCE INFORMATION~ BTREAM RUNOFF TIME INTENSITY t\IUt"IBEH (CFS) (t"1 IN.) ( INCH! HDUH) -------------------------------------------------------------------------~-- 1 bl.6f3 7.5:1. il·. 04~5 :1.2.08 nA I I\IF (~L..L -.. I NTENf3 I TY -···HfYf I 0 CDNFLlJE:NCr::: FDF:nUU~ USED FCJH 2 ErTT;;E(·~lt·'If.3 VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS~ 6El.70 6~i.18 COMPUTED CONFLUENCE EST1MATES ARE AS FOLLOWS:' RUNOFF (CFB) = 68.70 TIME(MINUTES) -13.406 TOTAL AHEACACRES) = **************************************************************************** FLOW PROCESS FROM NODE 50.00 TO NODE 4~3 n 00 I B CODE :::: »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USEH-SPECIFIED PIPESIZE««< J.~. ============================================================================ DEPTH OF FLOW IN 36.0 INCH PIPE IS 20.9 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 16.2 UPSTREAM NODE ELEVATION = 309.00 DOWNSTREAM NODE ELEVATION = 305.00 FLOWLENGTH(FEET) = 130.00 nANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREA (CFS) -68.70 TRAVEL TIMECMIN.) = .13 TC(MIN.) = 13.54 *********4****************************************************************** ~L..OW PROCESS FROM NODE ~jO. 00 TO NDDE 48.00 IS CODE ::=: :l »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE«{« ===========================~================~=============================== CONFLUENCE VALUES USED FDR INDEPENDENT STREAM 1 ARE~ TIME OF CONCENTRATIONCMI~~TES) = 13.54 RAINFALL.. INTENSITY (INCH./HDUR) = 4.02 TOTAL STREAn AREA (ACRES) = 29.40 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 68.70 . **************************************************************************** FLOW PROCESS FROM NODE 4·~5. 00 TO NODE 46.00 IS CdDE = . 2 »»>RATIDNAL METHOD INITIAL.. SUBAREA ANALYSIS«-«< I "'=~~~~:~~~~~:~~~~~~~~:~~::~~::::::=::::::::::~=:=~::::===~,=,============"==== INITIAL SUBAREA FL..OW-LENGTH(FEET) -100.00 U~STREAM ELEVATION = 347.00 DOWNSTREAM ELEVATION = ELEVATION DIFFERENCE = ~::'45 II (:t() 2.00 !..JRB(':')N f31..JBf-\PEJ) O\/fPL(:)I\\D T I t"I[ or=-FL.:mJ (1"'1 I NUTEf:l ) ..... 1. 00 YEP'ln ru\ t!\lF (..)L.I.... I t···.ITFI\fS I TY ( I t\! C 1···1 ! HCll..JF~) ..... ~5. ~511 3DTAL AREA(ACRES) = TOTAL RUNOFF (CFS) = ,,6J. **************************************************************************** FLOW PROCESS FROM NODE 46 n 00 'lD NODE 47 .. 00 It) CODE: ::::: ---------------------------------------------------------------------~------• > > > > :::·C(JI··1PUTE ~3TFi:EE"T'FLDv~ TF.:f-WELT I l'lE TI"'IF~U BUBI0.tm_:(.·~l< <:.::: <: < ==~~~;~~~~:::::~~~~~;~~~=:=:::::==;;;~~~===~~~~;;~;~~=;~;~~~;~~=:====;~;~~~========= STREET LENGTHCFEET) = 1000.00 CURB HEIGTHCINCHES) = 6. BTREET HALFWIDTH(FEET) = 28.00 STREET CRbSSFAlL(DECIMAL) ::::: .0200 SPECIFIED NUMBER OF HALF STREETS CARRYING RUNOFF::::: 2 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) -q.23 STREET FLOWDEPTHCFEET)::::: .31 HALFBTREET FLODDWIDTH(FEET) = 9.37 AVERAGE FLOW VELOCITYCFEET!SEC.) -4.64 PRODUCT OF DEPTH&VELOCITY = 1 .. 45 STREETFLOW TRAVELTIMECMIN) = 3.60 TCCMIN) = 11,,89 100 YEAR RAINFALL INTENSITYCINCH/HOUR) = 4.369 ~::~D I 1.... CL(.·~If.;~3 I F I C{'~ T I ON I S II D II SINGLE FAMILY DEVELOPMENT Fi:UNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES)::::: 7.10 SUBAREA RUNOFF(CFS~ -17~06 SUMMED AFi:EA(ACRES) = 7.30 TOTAL RUNDFF(CFS) -17.67 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTHCFEET) = .38 HALF STREET FLOODWIDTHCFEET) -12.68 FLOW VELOCITYCFEET/SEC.) ::::: 5.12 DEPTH*VELOCITY = 1.94 **************************************************************************** FLOW PROCESS FROM NODE 47.00 TO NODE 48.00 IS CODE = 4 • -._-._-'.:.-.:-.:-.:-.:-'C-~ l~'j-'t'~1 F-: 'I--j '1"~ E'~: ... -r'-: '1"-f'~: E'~ f":: L-'-('"j-~ -:r: f':~ 'f~ :: -E: L--~r: 'I-'t~I'E= -~r: ;--, F":~ '1'-1--~ L--II-~~: -F" ~ ~ .:: .:: ~: ~:: .• ::: .-_.-.••• _.----._-•• -... -._-._---..• ---• __ .-•.. ------_ ... ---... - •••• ,,:' .,:' ,,:' .,:' _0. I .. ,J _. ..:. ".... MOO •• "' .. If"IJ '\ "'I V':. _ .'::. r" .. ~ .... ..:::1 •• ::." t"1 \ r.::. tO'1 •••••••••••••••••••• , »»>USINd USER-SPECIFIED PIPESIZE««< ==========================~=====:::::=========================================== PIPEFLOW VELOCITYCFEET/SEC.) = 10.0 UPStREAM NODE ELEVATION = 306.00 DOWNSTREAM NODE ELEVATION = 305.00 FLOWLENGTH(FEET) = 50.00 MANNINGS N = .013 13 I \IEh' F' I PE D I (.~r'1ETEn ( I !\!Cl···!) ::::: 1 G. 00 1\1l.JI'1BEF=i: Dr:' P I r:'F~E ..... :1. PIPEFLOW THRU SUBAREA (CFS) -17.67 TRAVEL TIME(MIN.)::::: .08 TCCMIN.) = 11.98 **************************************************************************** FLOW PROCESS FROM NODE ,q·7.00 TONDDE 40.00 IS CODE ::: :I. ---------------------------------------------------------~------------------ »»>DESIGNATE INDEPENDENT STREAM FOR CONFLU~NCE«':::« »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< =========================================:::::=~=====:::::~====:::::============:::::======~ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE~ TIME OF CONCENTRATION (MINUTES) = 11.98 RAINFALL INTENSITY CINCH.fHOUR) = 4.35 TOTAL STFi:EAM AREA (ACRES) = 7.30 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 17.67 CON~LUENCE INFORMATION: f:;TF~E{~t"l PUNOFF T I ! .... IE I hl1 Et'm I T\' NI...JI'"IBEF;: (CFS) (t··1 IN.) ( INCH / HOI...JR j ... ____ ...... " .. 0 .. _ ...... __ .......... __ • M ........ _ .................... ~ ..... MOO ................................. _ ................. _ ....................... _ .......... _ .... ___ .. __ ............................................ __ .......................... _ ..... _ .................................................. _ ................. -............ . 1 ,(::,t3 II 70 1 ~~ n 54· 4. OlS .... :::! 1.7. 67 1-1-. 9B ·f-I· . ~:::i.I. C;;l RAINFALL-INTENSITY-RATIO CONFLIJENCE FORMULA USED FOR 2 STREAMS '\){·)H I DUB Cm·;IFI...UENCED FH-lNor'::'r !.,.1{)f....t.!f.:;:S ?)F<:E HH FDL..L.O[,<JS ~ CUt·'IF'U rED L;fJ!\JFL.UE:I\'CE EE r I lvl(\ ·'·Et3 (.::lH[ (:IS FUI....I....O[J··}~:) ~ Fi:UNOFF (CF3 ) ""' B~5 .. 02 T I t·1E (1'1:r I\IUTEB)·-1 ::~. ~540 TOTAL AREACACRES) = 36.70 **************************************************************************** • FLOW PF'::OCE:::m FHDt1 ~,mDE 48 .. 00 TO NODE 1. :::~7 • 00 I S CODE".:: LI· ..... _ ..... _ .... _ .. _-_ ............... _ ................ __ ....... _ .. __ ..... _ .. _ ..... __ ............ __ .. -... -............................ _ ........ _._ ....... -... _---_ ... _ .. _ .. -" ....... _-_ .......... -_ .. -_._._ ................. -......................... _ ..................................... _. • »»>COMPUTE PIPEFLOW THAVELTIME THHU SUBAHEA««< »»>USING USEH-SPECIFIED ~IPESIZE««< ============================================================================ DEPTH OF FLOW IN 36.0 INCH PIPE IS 24.3 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 16.7 UPSTREAM NODE ELEVATION = 305.00 DOWNSTREAM NODE ELEVATION = 302.00 FLOWLENGTHCFEET) = 100.00 MANNINGS N = .013 GIVEN PIPE D I ('~1'1ETER ( INCH) :::: 36. 00 NUt"IBEF~ DF PI PEB .... 1 PIPEFLOW THRU SUBAREA(CFS) -85.02 TRAVEL TIME(MIN.) = .10 TC(MIN.) = 13.64 **************************************************************************** FLCH'·) PROCEf3B r::ROI'1 NODE 48 .. 00 TO HODE 127. 00 I S CODE:::: 1 :> > > > >DES I GNt-HE I NDEPENDEHT STHE(")I·'1 FOH CONFLUENCE< -::: -::: < <: ======~=================================================================:=== CONFLUENCE VALUEB USED FOR INDEPENDENT STHEAM 1 AHE: TIME OF CONCENTRATION (MINUTES) = 13.64 RAINFALL INTENSITY (INCH./HOUR) = 4.00 TOTAL STREAM AREA (ACRES) = 36.70 TOTAL BTREAM RUNOFF (CFS) AT CONFLUENCE = 85.02 **************************************************************************** FLOW PROCESS FROM NODE 12~5 .. 00 TO NDDE 126.00 IS CDDE :::: -------------------------------------------------------------------------~-- »»>RATIONAL METHOD INITIAL BUB AREA ANALYSIS««< ============================================================================ SOIL CUiSEIFICl~HION I~3 "0" RURAL DEVELOPMENT RUNOFF COEFFICIENT = .4500 NATURAL WATERSHED NOMOGRAPH TIME OF CONCENTRATION WITH IO-MINUTES ADDED = 14.03(MINUTES) INITIAL SUBAREA FLOW-LENGTH(FEET) -800.00 UPSTREAM ELEVATION = 347.00 DOWNSTREAM ELEVATION = 301 .. 00 ELEVATION DIFFERENCE = 46.00 100 YEAR RAIHFALL INTENSITY (INCH/HOUR) -3.927 SUBAREA RUNOFFCCFB) -2.47 TOTAL AREA (ACRES) = 1" 40 TOTAL RUNOFF (CFS) - ***********************************~**************************************** FLOW PHOCESS FROM NODE :I. 26 . 00 TO I\IDDE »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< I "::::'::~~;~~~~~~~~~~:":~;~~~~:;~;'~~~;'~;';;::::;~~::::7~;;;~~;';';~;:~~;'~~~:'~~~7-~~~~~;:~:::::~;~:::~~~~~~:~:::::::=::::::::=":'":""::~~:=":::::::~:~~==~:::::""~::::=:::" TIME OF CONCENTRATIONCMINUTES) = 14.03 RAINFALL INTENSITY (INCH./HDUR) = 3.93 . TOTAL BTREAM AREA (ACRES):::: 1.40 TOTAL STREAM RUNOFFCCFB) AT CONFLUENC~ = 2.47 CONFLUENCE INFORMATION~ STREAM RUNOFF TIME I hlTE:i'·.lf; I TY • ---------------------------------------------------------------------------- 1 f:3~:in ():Z :~:~" LI· 7 l~L 64 :I. 4. o~s ,q·.OOO RAINFALL-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR l\iAF~ I DUt3 CONFLUENCED F;:UNOFF VALUES (..'1f\[ AS FOL..LOlfJS: COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS~ RUNOFF (CFS) = 87.45 TIME(MINUTES) -13.639 TOTAL AREA (ACRES) = 38.10 **************************************************************************** FLOW PROCESS FROM NDDE 49.00 TO NODE 50.00 IS CODE = »»>RATIONAL METHOD II~ITIAL SUBAREA ANALYSIS««< SOIL Cl.{-)SSIFICATION IS "D" SINGLE FAM!LY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) -100.00 UPSTREAM ELEVATION = 444.00 DOWNSTREAM ELEVATION = 442.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) -8.299 100 YEAR RAINFALL INTENSITYCINCH/HDUR) = 5.511 SUBAREA RUNOFF(CFS) -.61 TOTAL AREA (ACRES) = .20 TOTAL RUNOFF (CFS) -.61 **************************************************************************** FLOW PROCESS FROM NODE 30.00 TO NODE 51.00 IS CdD~ ~ 6 •... -._-':.~ .:-.::-~:-~:~ -( .. : r~-l t~-I f'~~ ',"·1 ~r~ ;~:.-;: ~r~ -f': -[: f:'~: ::r--F': L---C)-~'J. _ .. 'l~ F~ ;; ~.: E~~ -L'-~·r~ '1"· -t l' 'E':~ .-. :r-: ~-I'r:: 1--1"'-~: -1'-1 ;:~;. f-~ -E': ;~ -:.-~:.-.~.-:.-.::.-.---.. ---.. -_ .... _ ..... '-_ .... --.-_ .. _ ..... -_ ... '-0 _.--... _--- •••• 0':' )' ,,:' •••• ..... .... ... .... I::. .'::1 '\::. :::. . "t \ to"j v '-. _ .~. ':. r" 't;. _. "'::1 .... x:.' " .. 1 'I" .::. r"I':" .... ':" ....... . =======~==============================================================~==~== UPSTREAM ELEVATION = 442.00 DOWNSTREAM ELEVATION = 400.00 STREET LE~GTH(FEET) = 750.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTHCFEET) = 28.00 STREET CRDSSFALLCDECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -11.93 STREET FLOWDEPTH(FEET) = .33 HALFSTREET FLOODWIDTH(FEET) = 10.20 AVERAGE FLOW VELOCITY{FEET/SEC.) = 5.15 PRODUCT OF DEPTH&VELOCITY = 1.70 STREETFLOW TRAVELTIME(MIN) = 2.43 TCCMIN) = 10.72 100 YEAR RAINFALL INTENSITYCINCH/HOUR) = 4.671 BO I L Cl...~)~:3f:3 I r: I C(~T I 01\1 I S II D II SINGLE FA~IILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES) = 8.·80 SUBAREA RUNOFF (CFS) -22.61 SUMMED AREACACRES) = 9.00 TOTAL RUNOFF(CFS) = 23.21 END OF SUBAREA STREETFLOW HYDRAULICS~ DEPTHCFEET) = .40 HALFSTREET FLOODWIDTHCFEET) = :1.3.51 FL.m'~ VEL.DC I TY (FEET 13I::::C.):= ~5. 97 DEPTI·H+'·.,lELDC I TY::." 2. ~~7 **************************************************************************** I r-=-LClv·J F'RDCESS Fr';:OI"1 N tiD E: !51. 00 TO l\mN:: 5\:'.). 00 I B CODE".::: '::to --;;;;;~~~;~~~-;;;~;~~~-~~~~~~~;~~-~~~~-~~;~~~~~~~~~------------------------ »»>USING USER-SPECIFIED PIPESIZE««< , ============================================================================ : DEPTH OF FLOW IN 18.0 INCH PIPE IS PIPEFLOW VELOCITY(FEET/BEC.) = 15.3 UPST~EAM NODE ELEVATION = 400.00 DOWNSTREAM NODE ELEVArIO~ = 364.00 1 -'1· • ,-+ I NCHEE:,) GlVEN PIPE DIAMETER(INCH) = PIPEFLOW THRU SUBAREACCFS) - TRAVEL TIME(NIN.) = .65 1(3.00 NUMBER OF PIPES -:I. TC(MIN.) = :1.1.38 **************************************************************************** • FLmJ PROCEGS FRCm hlODE 51 . 00 TO NODE !;:s~:;. 00 I B CODE-: .::: 1 . --;;;;;;~~~~~~~~-~~;~;~~;~~~-~~~~~~-;~~-~~~;~~~~~~~~~~~--------------------- • I ============================================================================ CONFLUENCE VALUES USEO FOR INDEPENDENT STREAM 1 ARE: T I t'lIF.: OF CONCENTI~?n ION (t'1 I NUTE!3) ::C" 11 • 30 RAINFALL INTENSITY (INCH./HDUR) = 4.50 TOTAL STREAM AREA (ACRE!3) = 9.00 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 23.21 FLOW PROCESS FROM NODE 5~':;' u 00 IE; CDDE ::::: 2 --~-------------------------------------------------------------------------»»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< :::::::-.: :;::~.:::::::::: :.::.: ::::::::: ::::::::: ::::::::.:::-::::::.: :::.: ::-.:::::.:::::::::::::::::::::: ::-.:::-.:: :::: :::::::::: :::::::.:::::::::::: ::::::::: ==:::::::::::-.::::-.: =.:::::::::-.::::-.::::::::::: :::: :.:::::::: :'.::::::::::::: ::::: :::::::::: ::::::::::::.:::::.::: ::".:: !:::: ::~:"::::: ::::::::: :."!:!:::: ::::::!".: ::.:::::: :::::~:::::::: ::::::::: ::-.:: SD I L CL_(:~E;E I F I C~~ T I ON I ~3 II D II SINGLE FAMILY DEVE~OPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LEN6TH(FEET) -100.00 UPSTF~E('~1'1 ELF.:W~ T I D"I ::::: ::':7"7" 00 DOWNSTREAM ELEVATION::::: 375.00 ELEVATION DIFFERENCE::::: 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) -8.299 100 YEAR RAINFALL INTENSITY(INCH/HoUR) ~ 5.511 SUBAREA RUNOFF (CFS) -.61 TOTAL AREA (ACRES) = .20 TOTAL RUNoFF(CFS) -.6:1. **************************************************************************** FLOW PROCESS FROM NODE 53. (.Ii) TU I\IODE 54. 00 I f:3 CODE ::::: ---------------------------------------------------------------------------- ============================================================================ UP~3-rRE{.it'l EL.EI-/{:iTIOI'·~ ::::: ~$7~5. 00 DDt!JI\I~3TF~E('~I'''i ELEV("~TIOI'~ :c" ::::.b!::,) .. 00 STREET LENGTHCFEET) = 650.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTHCFEET) = 28.00 STREET CROSSFALLCDECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -8.42 STREET FLOWDEP1HCFEET) = .35 HALFSTREET FLOODWIDTH(PEET) = 11 .. 02 AVERAGE FLOW VELOCITY(FEET/SEC.)::::: 3.16 PRODUCT OF DEPTH&VELOCITY = 1.10 STREETFLOW TRAVELTIME(MIN)::::: 3.43 TC(MIN) = ·11.73 100 YEAR RAINFALL INTENSITYCINCH/HOUR) ::::: 4.409 E?OIL CLJiSf.HFICATION IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT::::: .5500 SUBAREA AREACACRES) = 6.S0 SUBAREA RUNOFF (CFS) -15.76 SUMMED AREA (ACRES) = 6 .. 70 TOTAL RUNOFF(CFS) -16.37 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTHCFEET)::::: .43 HALFSTREET FLOODWIDTH(FEET) -15.16 FLOW VELOCITY(FEET/SEC.) -3.39 DEPTH*VELOCITY -:1..45 ******~**************************************************************f****** FUJv,} PFWCESS; FHC)t1 I\IODE !;:)4. 00 TO NODE ~_i~~i. 00 I S CODE ::::: 4 -----------------------~---------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIEO·PIPESIZE««< .----------------------------------------- e- PIPEFLOW VELOCITYtFEET/SEC.) = 9.3 UPSTREAM NODE ELEVATION = 365.00 DOWNSTREAM NODE ELEVATION = 364.00 FLOWLENG1HCFEET) = 50.00 NANNINGS N = .013 GIVEN PIPE DIAMETERCINCH) = 18.00 NUMBER OF PIPES = PIPEFLOW THRU SUBAREA(CFS) -16.37 TRAVEL TIMECMIN.) = .09 TC(MIN.) = 11.82 **************************************************************************** FLOW PHOCEE)~3 FF,C!t-1 NODE ~54. 00 TO NODE ~:_i~:!. 00 I G CDDE :::: 1. »»>DEGIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< =============~============================================================== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATIONCMINUTES) = 11.82 R('HNFALL II'-!TENSrfY (INCH. iI'--lOUR):::: 4.39 TOTAL STREAM AHEA (ACHES) = 6.70 TOTAL STREAM RUNOFFCCFS) AT CONFLUENCE = 16.37 CONFLUENCE INFORMATION: ~3TF(E(.7.)1'1 HUNOFF T II'1E I I'-HE:!--·.l!3 I TV NUt-'IBEF( (CFEn 0'1 H,I.) ( I NCH I r-IOl..!R) ----------------------------------------------------------------------------- • 1 '-I",,:r .,:: .... ) 11 :':~ j, 1. 1 . ~$E: 1.1· • 4'7'6 ~~ 16. :::r7 1 :t (""to"" 4. :~:;8'? . I.:).~:' RAINFALL-INTENSITY-RATIO CONFLUENCE FO~MULA USED FOR 2 STREAMS VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS~ COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) ~ 39.18 TIME(MINUTES) -11.378 TOTAL AREA (ACRES) = 15.7·() **************************************************************************** F~OW PROCESS FROM NODE 55.00 TO NODE 133.00 IS CODE = 4 ---------------------------------------------------------------------------- »»>CDMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ============================================================~=============== DEPTH OF FLOW IN 36.0 INCH PIPE IS 11.2 INCHES PIPEFLOW VELOCITV(FEET/SEC.) = 20.8 UPSTREAM NODE ELEVATION = 365.00 DOWNSTREAM NODE ELEVATION = 333.00 FLOWLENGTH(FEET) = 350.00 MANNINGS N = .013 GIVEN PIPE DIAMETER CINCH) = 36.00 NUMBER OF PIPES -1 PIPEFLOW THRU SU8AREA(CFS) -39.18 TRAVEL TIMECMIN.) = .28 TC(MIN.) = 11.66 **************************************************************************** FLOW PROCESS FROM NODE ;::i~5. 00 TD NODE 13::::;. 00 IS cont:: :~: ---------------------------------------------------------------------~------ »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< 1·~~~~~~~~~g~:~~~~~~~~~~~:~~~~~~~~:~~~~~~:;;~~=~==7==~~~"======'============== RAINFALL INTENSITY CINCH./HOUR) = 4.43 TOTA~ STREAM AREA (ACRES) = 15.70 TOTAL STREAM RUNOFF{CFS) AT CONFLUENCE -39.18 • »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< :::.:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::=::::::::::::-.::::.:::::::::::::::::::::-.::::::::::::::::;:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::;::::;;::::::::::::::~::::::::::::::::::::.:::::::::::::::'::::::::::::::::::::::::::::::::::::::::::!!::::::::::::::: SOIL GU:~BSIFIC(=1TIOI',1 IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) -100.00 1 .• .JPSTr':;:f.:::{.~I'I1 ELEV{'~ T I Dhl = ~'::;7 6. 00 DOWNSTREAM ELEVATION = 374.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW (MINUTES) -8.299 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 5.511 SUBAREA RUNOFF(CFS) -.61 TOTAL AREA (ACRES) = .20 TOTAL RUNOFFCCFS) -.61 ***********~**************************************************************** FLOW PROCESS FROM NODE 1.~:'l. 00 TO NODE 132.00 IS CODE ~ ---------------------------------------------------------------------------- »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ========================~=================================================== UPSTREAM ELEVATION = 374.00 DOWNSTREAM ELEVATION = 333.00 STREET LENGTH (FEET) = 600.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTHCFEET) = 28.00 STREET CRDSSFALLCDECIMAl) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -8.S0 STREET FLOWDEPTH(FEET) = .30 HALFSTREET FLOODWID1~(FEET) = 8.54 AVERAGE FLOW VELOCITYCFEET/SEC.) -5.01 PRODUCT OF DEPTH&VELOCITY = 1.49 STREET FLOW TRAVELTIME(MIN) = 1.99 TCCMIN) = 10.19 • 100 YEAR RAINFALL INTENSITY C INCH/HOUR) = 4.796 SCJ I L CL_AS!3 IF::-I C{YrI DN I SliD" SINGLE FA~IILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES) = 5.90 SUBAREA RUNOFF(CFS) -15.56 SUMMED AREACACRES) = 6.10 TOTAL RUNOFF (CFS) -16.17 END OF SUBAREA STREETFLDW HYDRAULICS: DEPTHCFEET) = .35 HALFSTREET FLOODWIDTHCFEET) ~ 11.02 FLOW VELOCITY(FEET/SEC.) = 6.06 DEPTH*VELOCITY = 2.10 **************************************************************************** FLOW PROCESS FROM NODE 1 :;:'2. 00 TO NODE 1 ::-::'::-~" 00 I f.3 CODE :::: ------------------------------------------------------------------~---------»»>COMPuTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ============================================================~===~=========== DEPTH OF FLOW IN 18.0 INCH PIPE IS 11.6 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 13.4 UPSTREAM NODE ELEVATION = 333.00 DOWNSTREAM NODE ELEVATION = 331.00 FLOWLENGTH(FEET) = 40.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES - 1 PIPEFLOW THRU SUBAREACCFS) -16.17 TRAVEL TIMECMIN.) = .05 TC(MIN.) = 10.34 I · .;.~ -lE. -}r· * -)!. ·X· ·X· -1l. -)(. -x· :'1. ~(. :~. -lI· :!!. -l!. ~, . .;~. :J(-:~. -)! •• ;~. -)!-:~. -1l. ·iI· .,* -)!. :Ii· : .... :fr. . .;~. :~. :Ii· :'1. -:1\-71· ,'I. ~. -1l. -)l·"k -:~. ~(. * -ll. :i!. ,l(. ~. ·iI· .,~ .. ;~. :,(. -:,~ .f:. -)~. :IE-"1(· .)! .. * ,'\ .. ;~ -:~. * .;~ .. f:. :~ .. ~!. 7"1· -l!. -j( •. ,~. "*. 7"(· ,\(. FLOW PROCESS FROM NODE 132.00 TO NODE 133.00 IS CODE = 1 . -------~---------------------------------------~--------------.-------------- :>:>:> > :>'DEB I ONATE·: INDEPENDENT STFi:E('·\t'·1 FOR CONFLUENCE< <: <: <-::: »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< ========================================================~=============~===~= CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATIONtMINOTES) = 10.34 iUIAL SIHLAM AREA (ACRES) = 6.10 TOTAL STREAM RUNOFFCCFS) AT CONFLUENCE -1.f:.: .• 1.7 CONFLUENCE INFORMATION1 STREAM RUNOFF TIME INTENSITY NUt'1HEF~ (eFS) (1"1 I t···.I .. ) (I NCH / l·-fOUF:) ......... -_ .. ;~ _ ...... ---'_."_._;;,:; .~-.~. ~ .. ~ ..... -.... -;~;,~. ~ ~ _.----.. --._-~ .:-~;.; ~ .. -_ .. --............. --_ .. -........ _."-............. _."-'-.. -...... _ .. ---................ _. _ ... -....... _.-... - 2 16.17 10~34 4.781 RAINFALL-iNTENSITY-RATIO CONFLUE~ICE FORMULA USED FOR 2 STREAMS VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: ~:;4. 15 :=.i2.4LI· COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS~ RUNOFF (CFS) = 54.15 TIMECMINUTES) -11.657 TOTAL AREA (ACRES) = 21.80 **************************************************************************** FLOW PROCESS FROM NODE »»>COMPUTE PIPEFLOW TRAVELTIME lHRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ==============================:::~============================================= • PIPEFLOW VELOCITY(FEET/SEC.) = 17.2 UPSTREAM NODE ELEVATION = 331.00 Dm'JNSTHE(.:~H t".!ODE EU-:::\,!{:l T I ON::::: ~:'1. ~:.;. 00 FLOWLENGTH(FEET) = 450.00 MANNINGS N = .. 013 GIVEN PIPE DIAMETER(INCH) = 24 .. 00 NUMBEH OF PIPES -1. P I PEFLm~ Tl-lnU BUB(.~m:::(.~ (CFS) --54 u 1 ~:.i TRAVEL TIMECMIN.) = .44 TCCMIN.) = 1.2.09 **************************************************************************** FLOW PROCESS FROM NODE :I. :::.::::; .. 00 TO t'·lODE ~::i9 • 00 I E3 ccmr::: :~:. 1. »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< :.~:! '.!::: ==::-.:::;::::::: :::: ::.-::::::;::::::: ::::: ::::: ::::::::::::: ::::::::::::: ::::::: ::-.:: :::::::: ::::!::::::::::::: ::::::=::-.:::::: ::::::::::=.::::::::: :::-.::::: :::::::::::::: ::::: ::::: =:::: :::':::: ::::: ::::: :::::::::::= ::::::::: ::: ::::::::: ::::: :::: :::::-:::: ::::: ::~ :::!: :::::::::: :~:: :!".!! ::::: ::::: ::::: ::::: ::::: ::::: :.::: CONFLUENCE VALUtS USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTnATION(MINUTES) = 12 .. 09 RAINFALL INTENSITY (INCH./HDUR) = 4.32 TOT f·~L STF~E(~l"'i (~I:;:E{:~ «(~CF~I::~S)::::: 2:1. . E30 TOT (~L. trrm::{Wl RUNOFF (eFS) ?\T CDNFL.UENCE ::~ ~.5LI·. 1. ::.i FLOW PROCESS FROM NODE :')6.00 TO 1\loDE ~57 • 00 1:3 CODE ::::: ----------------------------------------------------------------------~-----»»>RATIONAL METHOD INITIAL SUBAHEA ANALYSIS««< =============================================================~====~=~======= I SOIL CU1SSIFICATION :r.S liD" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 IN:r.TIAL SUBAREA FLOW-LENGTHCFtET) -100.00 UPSTREAM ELEVATION = 351.00 DOWNSTREAM ELEVATION = 349 .. 00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOWCMINUTES) - :1.00 YEAR RAINFALL INTENSITY (INCHfHOUR) = 5 .. 511 SUBAREA HUNOF~(CFS) -.61 TOTAL AREA(ACRES) -.20 TOTAL RUNOFFCCFS) -.6:1. **************************************************************************** FLOW PROCESS FROM NODE ;:'57 n 00 TO "lODE !.5E:. 00 I S CODE :::: -------------------------~-----~-----~~------------------------------------- • • ============================================================================ UPSTREAM ELEVATION = 359.00 DOWNSTREAM ELEVATION = 315.00 STREET LENGTH(FEET) = 1000.00 CURB HEIGTHCINCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALLCDECIMAL) -.0200 SPECIFIED NUMBER OF HALF STREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FlOW(CFS) -8.03 STREET FloWDEPTH(FEET) = .30 HAlFSTREET FLOODWIDTH(FEET) = 8.54 AVERAGE FLOW VEloCITY(FEET!SEC.) -4.74 PRODUCT OF DEPTH&VELOCITY = 1.41 STREETFLOW TRAVELTIME(MIN) = 3.52 TC(MIN) = 11.82 100 YEAR RAINFALL INTENSITY (INCH/HOUR) = 4.387 EmIL CU~SSIFICATIDN H; "D" ·SINGlE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES) = 6.10 SUBAREA RUNOFFCCFS) -14.72 SUMMED AREA (ACRES) = 6.30 TOTAL RUNOFF(CFS) -15.33 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FE~T) = .36 HALFSTREET FLOODWIDTH(FEET) = 11.85 FLOW VElOCITY(FEET!SEC.) = 5.03 DEPTH*VELOCITY = 1.83 FLOW PROCESS FROM NODE 58.00 TD NODE ;:.i9. 00 I S CODE ::::: :> >:>:> >Cot-"lr='tJTE P I PEFUJ~\J TRAVEL T I tT1E THRU SUB?iRE?)< -::: -::: < < »»>USING'usER-SPECIFIED PIPESIZE««< ==============================================================~=~=========~= DEPTH OF FLOW IN 24.0 INCH PIPE IS 11.5 INCHES PIPEFlOW VELOCITY(FEET/SEC.) = 10.3 UPf:3TREflt"j NODE E 1.... E: VAT I ON ::::: :322.00 DOWNSTREAM NODE ELEVATION = 321.00 FLOWLENGTH(FEET) = 40.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREA (CFS) -15.33 TRAVEL TIME(MIN.) = .06 TC(MIN.) = 11.88 1 **************************************************************************** FLOW PROCESS FROM NODE ~58. 00 TO NODE 59 u 00 I B CODE ::~ 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ==~==============================================================~======~=== I CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE~ TIME OF CONCENTRATION (MINUTES) = 11.88 RAINFALL INTENSITY (INCH./HOUR) = 4.37 TOTAL STREAM AREA (ACRES) = 6.30 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 15.33 FLOW PROCESS FROM NODE 60.00 TD NODE 61.00 IS CODE :::: :>:»»RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ============================~=============================================== fmIL CLPISfHFIUHION IS "D" SINGLE FAMILY DEVELOPMENT ~UNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-lENGTH (FEET) -100.00 UPSTREAM ELEVATION = 349.00 DOWNSTREAM ELEVATION = 347.00 EL~VATION DIFFERENCE = 2.00 URBAN SUBAREA DVERLAND TIME OF FLOW(MINUTES) 8.299 100 YEAR RAINFALL INTENSITY (INCH/HOUR) = 5.511 SUBAREA RUNOFFCCFS) -.61 TOTAL AREA(ACRES) -.20 TOTAL RUNOFF(CFS) - ***********~********************************************~******************* FLOW PROCESS FROM NODE 61,,<)0 TO NODE t..:.:::. 00 I E; CODE :::: »»>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA««< ::: ::::= =::::::::::::: :::::::::::: :::::::::::::::: ::::::::: ::::::::: ::::::::: :::::::::::-.:: :::: ::.~: !".:.::-.::::::::::::. ::.::: ::::: ::::: ::::: ::0.::::: :::!!:::::::-.:: :::: ::::::= :::::::::::::::::::::.! :'.:::::::::'::::::::::: ::::: ::.:.-:::::::::: ::::: :::::::.-.::::::::::: ::::::::::::::::::::::::::: :::::::.::::: ::=::::::::::.:::: :::::.::::-::::: • UPSTREAM ELEVATION = 347.00 STR~ET LENGTH (FEET) = 950.00 STREET HALFWIDTHCFEET) = 28.00 DOWNSTREAM ELEVATION = 318.00 CURB HEIGTH(INCHES) = 6. STREET CROSSFALL(DECIMAL) -.0200 SPEC I F I ED NUt"IBEJi: OF 1'-IALFB1T~EETS C{iREY II\IG nUNCJFF :"-, 2 **TRAVELTIME COMPUTED USING MEAN FLDW(CFS) -3.23 STREET FLOWDEPTH(FEET) = .25 HALFSTnEET FlOODWIDTHCFEET) = 6.05 AVERAGE FLOW VELOCITY(FEET/BEC.) -3.33 PRODUCT OF DEPTH&VELOCITY = .82 STnEETFLCJW TRAVELTIME(MIN) = 4.75 TC(MIN) = 13.05 100 YEAH H?HNFPILL. nrn:::t',ISIT'y'(INCI-'I/HIJUm :::: 4.:l.H:. BDIL.. CU)tmIFICATIOI\\ I~3 "D" S I NC3L.E Fr)I"'1 I l._ Y DEVELOPt'lENT F~UNDFF COEFF I C lENT ::: . ~5~K)() SUBAREA AREA (ACRES) ::: 2.30 SUBAREA EUNoFF(CFS) -5.21 SUMMED AHEA(ACHES)::: 2.50 TOTAL.. RUNOFF (CFS) -5.81 END OF BUBAREA STREETFL..oW HYDRAULICS: ' DEPTH (FEET) ::: ~30 HALFSTREET FLOODWIDTH(FEET) -8.54 FLDW VELoCITY(FEET/SEC.) = 3.43 DEPTH*VELoCITY::: 1.02 **************************************************************************** FLOW PROCESS FROM NODE 62 .. 00 TO NODE !,:'5<:f,.OO IS CODE ::: 1.1, ----------------------------------------------------------------------------»»>COMPUTE PIPEFL..OW TRAVELTIME THRU SUBAREA««< • ::: :.: c~~ ~ ~:~ ~~ ~! ~:~:~:::. ~~~:: ~~;,: ~ ~::::: ~ L;~!~ :::~: :=:~::: ~~: ~:~:~:~:: :~: =::: :::: c'" :~"::: :::: ::::::::: :::::: ::: c'":::::::::"=-:::~: C~: ::::: ~~ :::::: ::::::~:~: :::: :~~::: ::~"::: :::: DEPTH OF FLOW IN 18.0 INCH PIPE IS 7.1 INCHES . PIPEFLOW VEL.OCITY(FEET/SEC.)::: 9.0 UPSTREAM NODE ELEVATION = 322.00 DOWNSTnEAM NODE EL..EVATION = 321.00 FLOWLENGTH(FEET)::: 30.00 MANNINGS N::: .013 GIVEN PIPE DIAMETERCINCH)::: 18.00 NUMBER OF PIPES -:I. PIPEFLOW ,'HRU SUBAHEA(CFS) -5.81 TRAVEL TIME(MIN.) = .06 TC(MIN.) = 13.10 **************************************************************************** FLOW PROCESS FROM NODE 62. 00 TO NDDE~ ~59 • 00 I S CODE ~-': »»>DESIGNATE INDEPENDENT STREAM FOR CONFL..UENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< :I. ::::::::::::====:::===========:::=::::::==:::========~==============:::==:::==:::============~:::==~== CONFLUENCE V~LUES USED FOR INDEPENDENT STHEAM 3 ARE~ TIME OF CONCENTRATIONtMINUTES)::: 13.10 RAINFALL INTENSITY (INCH./HOUR)::: 4.10 TOTAL.. STkEAM AREA (ACnES)::: 2.50 TOTAL. STREAM RUNOFF(CFS) AT CONFLUENCE::: 5.81 CONFLUENCE INFoRMATION= STREAM RUNOFF TIME INTENSITY I t'"IUt~mER (CFt3) (I'ill,.!.) (ThICH/HOUR) ----~-------;;~;;-----~;~~;-------;~;;;-------~----------------------------- .... \ ' .f::. 1.1..8D 1~~. 10 RAINFALL-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR 3 STREOMS VARIOUS CONFLUENCED RUNOFF VALUES ARg AS FOLLOWS~ COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOW8~ RUNOFFCCFS) = 74.82' TIME(MINUTES) -12.093 TOTAL AREACACRES) = 30.60 **************************************************************************** • I:::'UJ\!~ PPOCESS FROI",! I\IDDE 5 ri. 00 TO NODE 118 .. 00 IS CDDE ::::: i:j. --;;;;;~~~;~~~-;~;~~~~~-~~;~~~~i~~-~~~~-~~;;~~;~~~~~------------------------ »»>USING USER-SPECIFIED PIPESIZE««< ============================================================================ DEPTH OF FLOW IN 36.0 INCH PIPE IS 14.5 INCHES PIPEFLOW VELOCITYCFEET/SEC.) = 28.2 UPSTREAM NODE ELEVATION = 321.00 DOWNSTPEAM NODE ELEVATION = 312.00 FLm·JLEJ·1(3TI"·1 (FEET)::::: 70. 00 t'1{:il\IN I I\IGS 1\1::::: • 0 t :~:. GIVEN PIPE DIAMETEP(INCH) = 36.00 NUMBER OF PIPES -1 PIPEFLOW THRU SUBAREA(CFS) -74.82 TRAVEL TIME(MIN .. ) = .04 TCCMIN.) = 12 .. 13 **************************************************************************** FLOW PROCESS FRDM NODE 118. 00 I!3 CCJDi:: ::::: »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ============================================================================ • CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE~ TIME OF CONCENTRATIONiMINUTES) = 12.13 RAINFALL INTENSITY (INCH.!HOUR) = 4 .. 31. TOTAL STREAM AREA (ACRES) = 30.60 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 74.82 **************************************************************************** FLOW PROCESS FROM NODE 110.00 TD I\IDDE 1 1 t • 00 I S CODE ::::: »»>RATIONAl METHOD INITIAL SUBAPEA ANALYSIS««< ============================================================================ SOIL Cl...f..~~:3~;IFIC(.nIm··.1 IS "D" f.::; I t\IGL.E FPlt"1 I LY DEVEL.DPt"!ENT HL.lhIOFF CDEFr~ I C I EHT ::::: • ~:'i~;OO INITIAL SUBAREA FLOW-LENGTH(FEET) -100 .. 00 UPSTREAM ELEVATION = 351.'00 DOl\INaTHE('~I";1 EI...EVP, T I DN :~-:: ELEVATION DIFFEHENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW (MINUTES) -8.299 100 YEAR RAINFAL.L INTENSITYCINCH/HOUH) = 5.511 SUBAPEA PUNOFF(CFS) -.61 TDTAL AREACACRES) = .20 TOTAL. RUNOFF (CFS) -.bi **************************************************************************** FLOW PROCESS FROM NODE 111.00 TO NODE 112.00 If3 CODE :::: 6 ----------------------------------------------------------------------------»»>COMPUTE STREETFL.OW THAVELTIM~ THRU SUBAPEA««< ============================================================================ I UPSTF~E{.:)t'1 EL.EV(')T I ON ::::: ~::'!.I·9. 00 DCJt"JI'JSTHEI~1'1 ELEV{'~T I DN :::: ~:::~:.O. 00 STREET LENGTH (FEET) = 750.00 CURB HEIGTH(INCHES) = 6 .. STREET HAlFWIDTH(FEET) = 28.00 STREET CHOSSFALLCDECIMAL) -.0200 SPECIFIEO NUMBEP OF HALF STREETS CARRYING HUNOFF ~ 2 **TRAVElTIME COMPUTED USING MEAN FLOWCCFS) -3.26 STREET FLOW DEPTH (FEET) = .. 26 HI!..)I._F~3Tr::EET FL.DClD~\J I DTH (FEF':'T) ==: 6. E:18 AVERAGE FLOW VELOCITY(FEET/SEC.) - PRODUCT OF DEPTHfuVELOCITY = STREETFI...OW TRAVELTIMECMINl = 4.54 "7"::' tt I ,_1 TC ( H I 1\1 ) :c-:: • • 100 YEAR RAINFALL INTENSITY (lNCH/HOUR) = 4.160 BO 1L. CL .. ASf.H F I C{·n IOhl I SliD II SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA (ACRES) = 2.30 SUBAREA RUNOFF(CFS) -5.26 SUMMED AREA(ACRES):::: 2.50 TOTAL RUNOFF (CFS) = 5.87 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTHCFEE1·) = .30 HALF STREET FLOODWIDTHCFEET) = 8.54 FLOW VELOCITY(F~ET/SEC.) = 3.46 DEPTH*VELOCITY = 1.03 **************************************************************************** FLOW PROCESS FROM NODE 112.00 TO NODE 118.00 IS CDDE :::: »»>COMPUTE PIPEFLOW tRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ===::::======================================================================== DEPTH OF FLOW IN 18~0 INCH PIPE IS 4.7 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 15.8 UPSTREAM NODE ELEVATION = 330.00 DOWNSTREAM NODE ELEVATION = 314.00 FLOWLENGTH(FEET) = 100.00 MANNINGS N = .013 GIVEN F I PE D I {:)1-1ETEI;: ( I NtH)~::! 1 !:3. 00 NUt--mEFi: OF PI PEE3 .... :I. F~PEFLOW THRU SUBAREACCFS) -5.87 TRAVEL TIME(MIN.) = .11 TCCMIN.) = 12.94 **************************************************************************** FLOW PROCESS FROM NODE 112.00 TO NODE 118.00 IS CODE ::!: :I. ----------------------------------------------------------------------------»»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 AREI TIME OF CONCENTRATIONCMINUTES) = 12.94 RAINFALL INTENSITY (INCH./HDUR) = 4.14 TOTAL STREAM AREA (ACRES) = 2.50 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 5.87 **************************************************************************** FLOW PROCESS FROM NODE 116.00 TO r··.IODE 11 "7 • 00 I B CODE ::: »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< :=======~===========================================~~===============~====== SO I L. CL.(.iS(;3I F I C('H ION I S II D" COMMERCIAL. DEVELOPMENT RUNOFF COEFFICIENT = .8500 INITIAL SUBAREA FLOW-LENGTH (FEET) -650.00 UPSTREAM ELEVATION = 340.00 DOWNSTREAM ELEVATION = 319.00 ELEVATION DIFFERENCE = 21.00 URBAN SUBAREA OVERLAND TIME OF FLOW (MINUTES) -9.439 *CAUTION: SUBAREA SLOPE EXCEEDS COUNTY NGMOGRAPH DEFINITION. EXTRAPOLATION OF NOMOGRAPH USED. *CAUTION: SUBAREA FLOWLENGTH EXCEEDS COUNTY NOMOGRAPH DEFINITION. EXTRAPOLATION OF NOMOGRAPH USED. 100 YEAR RAINFALL INTENSITYCINCH/HOUR) = 5.072 SUBAREA RUNOFF(CFS) -3.45 I TOT(.\L AREA (ACRES) = .80 TOTAL RUNOFF (CFS) -3.45 *********~****************************************************************** f;tO"J' F)~nrf:;~Q f:Flor'1 r,l[jr)f.; ..... v f\_ "" .... "'.,)-...J ._ 'I .J ...... 117.00 TO NODE 118.00 IE; CODE "':: »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< :::::::: ::-.:::::::=:::: ::::::::: :::::;:::: ::::: ~::; :.:::::::: =.: ::::: ::::: ::'.:::: ::::::: :::::::::::::::;~ r::: :::::::::: ::.:: :::::;:::: m;; :.:::~ j:;:: :;'.:: ::::: ::::: :;::; ::;i: ;r.:~;;::: :::::~=::::::::::: :::!!!::: :::::::: ::"_-:=: :.:~ ::::::'::.= :;=.:":::,:::::::;:::;; ::::; ;::~ ::::: ~;:: :::.: ::::: !:" .. "! :::::::::: :,;::: ::~:::;;: ::::: :::::::::: ::;: PIFLFLU~ jELuClrY(F~ET!SEC.) = 9.7 UPSTREAM NODE ELEVATION = 319.00 DOWNSTREAM NODE ELEVATION = 314.00 FLoWLENGTH(FEET) = 80.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES - • PIPEFLOW THRU SUBAREA (CFS) -3.45 TRAVEL TIME(MIN.) = .14 TCCMIN.) = 9.58 • FLOW PROCESS FROM NODE 117. (H) TD NODE 118.00 IS CODE~ ;;:: »»>DESIGNATE INDEPENDENT STREAM FDR CoNFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< :I. ======================================================================~===== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE= TIME OF CONCENTRATION(MINUTES) = 9.58 RAINFALL INTENSITY (INCH./HoUR) = 5.02 TOTAL STREAM AREA (ACRES) = .80 TOT(")L. STTi:E(.·~n RUNOFF (CFS) ('YT CONFU .. II::NCE ~.::: 3. 4~5 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUt'IBEH (CFS) (t'1I N.) (I NCI-·I/I-·IDUFO 1 74. 8:::~ 1 ;;:~ a 1 .,. .':'t 4. 31.::::: ~~~ r.::--.. J" f.37 l:Z II 91.1-4. l3~::~ .,," .. ::1 ~$ " 4~:5 r, 7. ~58 ~.:.i I~ ()::Z~5 RAINFAL.L.-INTENSITY-RATIO CON~LUENCE FORMULA USED FOR 3 STREAMS VARIOUS CDNFLUENCED RUNOFF VALUES ARE AS FOLLOWS: t30.49 72.51 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUI'"IOFF (CF B)":: Er:~;" 1.1-1 T I !'1E (1"1 I hll..rn::S) ... 12. 134 TOTAL AREA (ACRES) = **************************************************************************** FL.OW PROCESS FROM NODE 118.00 TO NODE 122 .. 00 IS CODE ":: c:> 1 ... 1 »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< .:::::::::: = ::-.::::::!:::: :::::::::::::::::::::= ::::::::: =:: ::::: ::::: :::: :::::::.:'.: ::::::::::::::: ::::::::::::::::::: == =:: :::::::::-::::: :!::: :::::::: ::::::::: :::::::::::::::::::: ::::: :::'.: ::::: ::::: :::::::: ::".::::::: ::::: :::::::::: ::::: :.":!: ::::: ::::: :::::::::::=::::::::: ::::.: ::::::::!.'!::!:: ::.::::::::::::::::::::::::::::::::: ::-.:: ::::: =.: 100 YEAR RAINFALL INTENSITYCINCH/HOUR) = 4.313 SOIL CU:~SBIFIC{~TrrJN IS liD" SINGL.E FAMIL.Y DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREACACRES) -2.40 SUBAREA RUNOFF(CFS) -5.69 TOTAL AREA (ACRES) -36.30 TOTAL RUNOFF (CFS) = 89.11 TC(MIN) = 12.13 **************************************************************************** FLOW PROCESS FROM NODE ----------------------------------------------------------------------------> > > > >CCJt'!PUTE: F' I PEF·UJI;.,1 TF~:("~\}ELT I t· ... IE T!"-lF~U ~3UBf:~F;:Ef:~< -::: <: < <: »»>USING USER-SPECIFIED PIPESIZE««< ===========~=============================================ti================== I DEPTH OF FLOW IN 48.0 INCH PIPE IS 28.8 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 11.3 UPSTREAM NODE ELEVATION = 288.00 D(}vJN~'3TRE{~l'1 NODE ELEV(.)T ION::::: 2E3:; n 00 FLDWLENGTH(FEET) = 500.00 MANNINGS N = .013 GIVEN PIPE DIAMETERC[NCH) ::::: 48.00 NUMBER OF PIPES - PIPEFLDW THRU SUBAREA(tFS) -89.11 TRAVEL. TIME(MIN.) = .74 TCCMIN.) = 12.87 1 -------------------,--------------------------------- • *************~*************************************.~*********~~************* FLOW PROCESS FROM NODE 1 :~~2. 00 TO NODE:: 66.00 ID CODE :::: :l. »»>D~SIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ====================================================~======================= CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: T 1 t;IE OF CDI\ICENTR{.,\ T I CIt'·.1 (1'1 I I\IUTEG) :::: J. 2. 8'1' RAINFALL INTENSITY (INCH./HOUR) = 4.15 TOTAL STREAM AREA (ACRES) = 36.30 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 89.11 **************************************************************************** FLOW PROCESS FROM NODE 67.00 TO NODE 68.0Q IS CODE = 2 -------------------------------------------------------------~-----~-------- »»)RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ~::: :::::::: :-.!:::::: ::::: :;-.::::::: ::::: :::::::: :::: ::::: :::: :::: ::::: :::: ::::: ::;;: == :;::: :::: := ::'.:: ::;:: ::=:::::::::: :::::::::::::: ::::::::: =:::.;:::::-.:::: ::::::-.:: :::: ::::: :~:::::: ::::: :.-::: ::::: !:::: ::'.:: ::'.:: ::::: ::::: ::::: :::: ::::::::::::-.: ::::: ;:::::::: ::;:: ::::: ::::: ::;:: ::::: ::::: :::::::::: := ::::"::: ::::: :::::::.-.;: :-.::: ::'-":::-:: BDIL CU:~!3:::HF·ICf~TION IS "0" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 I NIT I (.:)/.... f3LIB(':,HEf4 FL..Ol,J-·LEI\II3TH (F'''EET ) .-.. 100. 00 UPSTREAM ELEVATION = 291.00 DOWNSTREAM ELEVATION = 289.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) -8.299 100 YEAR RAINFALL INTENSITYCINCH/HOUR) = 5.511 SUBAREA RUNOFFCCFB) -.61 TOTAL AREA (ACRES) -.20 TOTAL RUNOFFCCFS) -.61 **************************************************************************** FLOW PROCESS FROM NODE 68.00 TO NODE 66.00 IS CODE = 6 • ---':.~ ~:~ :.-.:~ :: r": ('~-11':1-f":: ,-'-, :r'~ ;~: ._-;,: 1~ F-:' ~ E~~ T---F-L--'-O--;'-J --'1-: f-:' A .. · .. ;_.; E-~~ ·L .... :I'~ ·1 .... 't~1-E'~ --:r'~ '!-"-I f~~ ,_.,"-:.: -I ):~ ~-f":·: E":~ .~ .... ; .. ; ": .... :~ ~:~ .. -.-... -,-.-.. --.. --.• --_ ....... -.-..... --....... -.. -..... ••.. •.•. •.•. •..• ••.. ..... . . ... .... I:::. .;;J \ I: ... :. '.. 1/. ''.. .. '/":. .. . .:. .( _ \oj M .c": t'1 .. , '::. f·1':., ':" ':" ':" .... ============================================================================ L'PSTF~EAt'1 El...EWYT' I ON ~-::: 290. 00 STREET LENGTH (FEET) = 800.00 STREET HALFWIDTHCFEET) = 28.00 DOWNSTREAM ELEVATION = 282.00 CURB Hf:::~ I l::JTI-l ( I !\!CHES) "::: 6" STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 ·:'\·-1!·TF~rlVE1 .. T It~IE CDt"'IPUTEJ) UE) I ND 1···1E(IN FI...Ov./ C CFt::;) ·_·1.1-.4"1 STREET FLDWDEPTH(FEET) = .31 HAL..FSTREET FLOQDWIDTH(FEET) = 9.37 AVERAGE FLOW VELOCITY(FEET/SEC.) -2.25 PRODUCT OF DEPTH&VELOCITY = .70 STREET FLOW TRAVELTIME(MIN) = 5.94 TC(MIN) = 14.24 100 YEAR RAINFALL INTENSITY (INCH/HOUR) = 3.891 SDIL CU-'if;~3IFIC{'HIOI\l IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES) = 3.60 SUBAREA RUNUFF(CFS) -7.70 SUMMED AREACACR~S) = 3.80 TOTAL RUNOFFCCFS) -8.31 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .38 HALFSTREET FLOODWIDTH(FEET) ~ 12.68 FLOW VELOCITY(FEET/SEC.) = 2.41 DEPTH*VEI....OCITY = .91 **************************************************************************** I --;;;;;~~;'~~~:;~~;:~~;~~~~~;~;~~~~~~;~;~~~~;~G~~~~::;~::;.~~:-:---~--------.-.--- ::::: = :::::::::: :::::::: ~':::::::::: :::: :-:.: :::: ::::: ::-.: :::;: :::::::: :::::::: :::: :::::::::::::::::::::::::-.::::: :::: :::: :::= :::: :::: ::::: =: ::::::::: :::::'.:::::: ::;:;::::: :::::::."::::; ::: ::::::::::::::::.-:::~ := :::.: == :::::= ::'.:::::: ::::: ::::::::::::: :'N'!: -;:::: ::::: :::::.:. .. .:: ::::: ::::::::: ::::: !;::::: :::::::::::: ::::: CONF[UENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE~ TIME OF CONCENTRATION (MINUTES) = 14.24 RAINFALL INTENSITY (INCH./HDUR) = 3.89 TOT (:,!-STPEf,::lt"1 ('~HE(-4 ( ('~Cf.:ES) ::::: ~j.> El(i TOTAL STREAM RUNQFF(CFS) ~T CONFLUENCE = 8.31 **************************************************************************** FLOW PROCESS FROM NODE 6::::;. 00 TO NonE 64" 00 IE:;; CDDE ::::: • __ ... _ ....... _ •• _ ...... M_ ............... '''N ............. _ ............... _ ....... _ ._ .......... _00 ............... __ .................. _ ............... ,._ . ___ ............. _ ... ___ . __ ..... _ .... __ .. _ .. _ ..... __ ... __ .... _ ..... _._ ..... ,._ .......... -............ _ ..-";", .. __ ..... _ ... _ ........ _ ............ _ »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< • =-=: ~ ~Ilt~l: IG:I::-':: CE~ ~l~ ~~ E r ::;1; :~[.:: fl:~ :;~; ~~E~ ~ ~I~~(:~li~ ~1: :I~: ~l~: ~:I::~L:::'J' t::;~I:I:~: ~::;: ~F.::~~I::F::-:: :I::::C:::"I=E~I~~ :r'':: =-::::: :::::::::::::: = ::::::::::::::: ::'.":::::::::::::::::: ::::::::::::::::::::: :c-::::::: :::::::::: ::::: ,.J. :l .... '" n. _, ... , \; ~ ....... .J ,-[ ... ~ . ~ _. ._ .... .... .•. _ 'I • ~.h..J .... INITIAL SUbAREA FLOW-LENGTHCFEET) -100.00 UF'STHE(.:ll-l ELEV("H I ON :::: :S08 .. 00 DOWNSTREAM ELEVATION = 306.00 ELEVATION DIFFEHENCE = 2 .. 00 URBAN SUBAREA DVERLAND TIME OF FlOWCMINUTES) -8.299 100 YEAR RAINFALL INTENSITY (INCH/HOUR) = 5.511 SUBAREA RUNOFFCCFS) -.61 TOTAL AREA (ACRES) = TOTAL RUNOFF(CFSJ -. n (:,:1. **************************************************************************** FLOW PROCESS FROM NODE 64.00 TO NODE 65.00 IS CODE = 6 »»>COMPUTE STHEETFLOW TRAVELTIME THRU SUBAREA««< ============~================:==========::::=================================== UPSTREAM ELEVATION = 305.00 DOWNSTREAM ELEVATION = 282.00 STREET LENGTH (FEET) = 900.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -4.11 STREET FLOWDEPTH(FEET) = .28 HALFSTREET FLOODWIDTH(FEET) = 7.71 AVERAGE FLOW VELOCITY(FEET/SEC.) -2.88 • PRODUCT OF DEPTH&VELOCITY = .81 STREETFLOW TRAVELTIME(MIN) = 5.21 TCCMIN) = 13.50 I 100 YEAR RAINFALL INTENSITY (INCH/HOUR) = 4.025 BOIL CLP!~3S:;;IFICATION IS "D" SINGLE Fm'1ILY DEVEUJPt'1EhIT HUNOFF Cm::r:'FICIENT ::-.:: . S~500 SUBAREA AREAtACRES) = 3.10 SUBAREA RUNOFF(CFS) -6.86 SUMMED AHEA(ACRES) = 3.30 TOTAL RUNOFFCCFS) -7.47 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .31 HALFSTHEET FLOODWIDTH(FEET) -9.37 FLOW VELOCITY(FEET/SEC.) = 3.75 DEPTH*VELOCITY:::: 1.18 ************************************************************~*************** FLOW PROCESS FROM NODE 66.00 IE-) CDDE ,,;:: ---------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU 5UBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ===============================================================::::===========~ DEPTH OF FLOW IN 18.0 INCH PIPE IS 10.0 INCHES PIPEFLOW VELOCITYCFEET/SEC.):::: 7.4 UPSTREAM NODE ELEVATION = 283.00 DOWNSTREAM NDDE ELEVATION = 282.00 FLOWLENGTH(FEET) = 60.00 MANNINGS N = .013 C3 I VEN P I FE D I {·~nETEP ( I I\.ICH):::: 1 E:. 00 1\IUt'{E:EF~ OF F' I PEB .... PIPEFLOW THRU 8UBAREACCFS) -7.47 TRAVEL TIMECMIN.) = .14 TCCMIN.) = 13.64 . *********************************************************************t****** FLOW PROCESS FROM NODE 6:'.i. 00 TO -NODE 66 n 00 I £? CODE :00 1 ___ .. ___ .......... "OM ....................................... _ ...... ___ ..... _ ..... _ ............ ___ .. _ ............... "_ .......... ___ .. ___ ... 00 .... _. ___ ... ___ .. __ .......................................... _ .... _ ..... _ ... __ ............................. _ ............. _ ...... ___ ;,. __ ..... _ ... .. ::: :> > > >DES I i:n·J{)TE 1. NDEPENDENT EnF<Ent·1 FOH CDt"IF1 .. Uf:'i:NCE< <: <: <: <: »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: 'r n"IE:: OF Cm',ICENTHAT I ON \t'1 I NUTEf.3) :::: 1.~:'. 61.1, RAINFALL INTENSITY (INCH.!HOUR) = 4.00 TOTAL STREAM AREA (ACRES) = 3.30 TOTAL STREAM RUNOFFCCFS) AT CONFLUENCE -7.47 • CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUI1BEF~ (CFS) (t'1 IN.) ( I t\ICI--I! HOI...JR) -~-------------------------------------------------------------------------- 1 ("'"aI'" O::~;"7 .. 1 1 1211 t"37 4. :l5~~'~ :';;:~ 8. ~:.1 14. 24 ::::;" 89j, ~::; 7. 47 13. 64 4. 000 RAINFALL-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS VARIOUS CONFLUENCED RUNOFF VALUES AAE AS FOLLOWS~ 104.09 99.07 101.39 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNDFFCCFS) = 104.09 TIMECMINUTES) -12.871 TOTAL AREACACRES) = 43.40 **************************************************************************** FLOW PROCESS FROM NODE 11.;'1. 00 TO NODE 120. 00 1 B CODE: :~." --------------------------------------------------------------------~------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ===============================~~=========================================== BO I L CU:~S~; :[1:: I C('~T I ON IS" D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH(FEET) -100.00 UPSTREA~ ELEVATION = 308.00 • DOWNSTREAM ELEVATION = 306.00 ELEVATION DIFFERENCE = 2.00 I URBAN SUBAREA OVERLAND TIME OF FLOWCMINUTES> -8.299 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 5.511 SUBAREA RUNOFFCCFS) - TOTAL AREACACRES) = .61 .20 TOTAL RUNOFFCCFS) -• l::..:I. ***************************************************************************~ FLOW PROCESS FROM NODE 120.00 TO NODE 121 .. 00 IF:. CODE ":" ---------------------------------------------------------------------~------ »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ===========================================~================================ UPSTHE{')t'1 EL.E::VlH I ON :::: ~$OB. 00 DOI,YNSTFu:::m'1 ELEV{'H I ON :::: ::~GEl. 00 STREET LENGTH(FEET) = 450.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALL(DECIMAL) -.0200 f.~PEC I F I ED I\lUI'1BEFi: OF H{'~L..FSTREETB CI~F;:RY H!El r':::I..J.I\IDFF = ::::: **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -3.15 STREET FLOWDEPTHCFEET) = .25 HALFSTREET FLOODWIDTH(FEET) = . 6.05 AVERAGE FLOW VELOCITYCFEET/SEC.) = 3.87 PRODUCT OF DEPTH&VELUCITY = .. 96 STREETFLOW TRAVELTIMECMIN) = 1.94 TC(MIN) = 10.24 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.813 SOIL CU~SSIFIC(.nIDN IS liD" SINGLE FA~IIlY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES) = 2.40 SUBAREA RUNOFF(CFS) -6.35 SUMMED AREA (ACRES) = 2.60 TOTAL RUNDFF(CFS) -6.96 END (JF SUB()F~E(:.'.j STREETFLCJ!AI 1"lYDf~r-IUL I CS ~ DEPTHCFEET) = .30 HALFSTREET FLOODWIDTH(FEET) -8.~4 FLOW VELCJCITY(FEET/SEC.) -4.11 DEPTH*VELOCITY -1.22 'lO.OO IE3 CODE ::: --------------------------------------------------------------------~------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< =========================================~=================================== SO I L. CL,.:iSE;:r. F I CAT I 01\1 I f:j "D" • SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL. SUBAREA FL.OW-LENGTHCFEET) -100.00 UPSTREAM ELEVATION = 351.00 DOWNSTREAM ELEVATION = 349.00 • ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERL.AND TIME OF FlOWCMINUTES) -8.299 100 YEAR RAINFALL INTENSITY C INCH/HOUR) = 5.511 SUBAREA RUNOFFCCFS) -.61 TOTAL AREACACRES) = .20 TOTAL RUNOFFCCFS) -.61 **************************************************************************** FLOW PROCESS FROM NODE 70.00 TO NODE 71.00 IS CODE = 6 »»>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA««< =======================================================================~===~ UPSTREAM EL.EVATION = 349.00 DOWNSTREAM ELEVATION = 277.00 STREET LENGTHCFEET) = 1000.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTHCFEET) = 28.00 STREET CROSSFALLCDECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -8.24 STREET FlOWDEPTH(FEET) = .28 HALFSTREET FLOODWIDTHCFEET) = 7.71 AVERAGE FLOW VElOCITY(FEET/SEC.) -5.78 PRODUCT OF DEPTH&VELOCITY = 1.62 STREETFLOW TRAVElTIME(MIN) = 2.88 TC(MIN) = 11.18 100 YEAR RAINFALL INTENSITYCINCH/HOUR) = 4.547 !.::lOII.. .. [:L..,:71Sr:)IFIC(.·~ITION I~:; "D " SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACRES) = 6.10 SUBAREA RUNOFFCCFS) -15.25 SUMMED AREA (ACRES) = 6.30 TOTAL RUNOFF(CFS) -15.86 END OF SUBAREA STREET FLOW HYDRAULICS: DEPTHCFEET) = .35 HAL~STREET FLOODWIDTH(FEEt) -11.02 FLOW VElOCITYCFEET/SEC.) = 5.95 DEPTH*VElOCITY = 2.06 FLOW PROCESS FROM NODE 71.00 TO I\IDDE ----------------------------------------------------------------------------»»>COMPUTE PIPEFlOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< :::::.:::::::: :::::::-.:: :.:::::::::: :::::::::::::: :::: ::::: :::: ::::::::: ::::: ::::: ::::: ::::: ::::: ::::::::: ::::: ::::::::: =:: ::::: ::::: ::::::::: :::: ::::::::: ::::: ::::: :-:: ::::: :::.-:-::::: ::::: ::::: ::::: ::::::::: :::: :::: :::: ::::: ::-'::0:::::::: ::::: :::::::::: =:: ::::::::: ::::: :::: :::: ::::: :::;:::::::::: ::::: :::: !:::: ::::: ::::: ::::: :.::::::: ::::; :::::::::: DEPTH OF FLOW IN 24.0 INCH PIPE IS 10.4 INCHES PIPEFLOW VElOCITYCFEET/SEC.) = 12.1 UPSTREAM NODE ELEVATION = 277.00 DOWNSTREAM NODE ELEVATION = 274.00 FlOWLENGTH(FEET) = 80.00 MANNINGS N ~ .013 GIVEN PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES -1 P I PEFL.m~ nmu f3UBAFl:EA (CFB) ::::: 15. 86 TRAVEL TIME(MIN.) = .11 TCCMIN.) = 11.29 I *.**********.'***,"******.,**.*********.** .• ->*****., .•. ************** .•• *.************** FL.m'J F'F:::OCESt'l Fr~Ot'1 NODE 71. • 00 TO NODE 7t3 n 00 I!:3 CDDE "::: 1 . ----------------------------------------------------------------------------»»>DESIGNATE INDEPtNDENT STREAM FOR CONFLUENCE««< =================================================================~========== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE; TIME OF CONCENTRATIONCMIMUTES) = 11.29 TOTAL STREAM AREA (ACRES) = 6.30 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE - ========================~=================================================== SOIL CU:\SEIFIC?HION IS "0" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLDW-LENGTHCFEET) ~ 100.00 UPSTREAM ELEVATION = 325.00 DOWNS1REAM ELEVATION ~ 323.00 ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF ~LOWCMINUTES) -9.299 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 5.511 SUBAREA RUNOFF(CFS) -.61 TOTAL AREACACRES) = a 2() TOTAL RUNOFF (CFS) -.6:1. **************************************************************************** FLOW PROCESS FROM NODE 7~:' n 00 TO r\IODE 74.00 IS CODE :~" 6 »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< =======================~==~======~====================~==================~== UPSTREAM ELEVATION = 323.00 DOWNSTREAM ELEVATION = 275.00 STREET LENGTH(FEET) = 850.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALLCDECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -3.95 • STREET FLOWDEPTH(FEET) = .25 HALFSTREET FLOODWIDTHCFEET) = 6.05 AVERAGE FLOW VELOCITY(FEET/6EC.) -3.98 PRODUCT OF DEPTH&VELOCITY = .98 STREETFLOW TRAVELTIME(MIN) = 3.56 TC(MIN} = 11.86 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.377 SO H. CL(.iSf:lI F I CAT I 01'-1 IS" D 1\ SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREACACRES) = 2.70 SUBAREA RUNOFFCCFS) -6.50 SUMMED AREA(ACRES) = 2.90 TOTAL RUNOFFCCFS) -7.11 END OF SUBAREA STREET FLOW HYDRAULICS~ DEPTH (FEET) = .28 HALFSTREET FLOODWIDTHtFEET) -7.7:1. FLDllJ VELOC I TY (FEET I' m;:~c.) :::: 4. !:fB DEPTI-·H-\,'ELOC I TV:"" 1 .. 40 **************************************************************************** FLOW PROCESS FROM NODE 71..].. 00 TO hlODE 'lB.00 IS CODE :::: »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ===================================~====================~=================== I DEPTH OF FLOW IN :1.8.0 INCH PIPE IS 9.2 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 7.8 UPSTREAM NODE ELEVATION = 275.00 DOWNSTREAM NODE ELEVATION = 274.00 FLOWLENGTH(FEET) = 50 .. 00 MANNINGS N = .. 013 GIVEN PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES - PIPE~LOW THRU 8UBAREACCFS) -7.11 TRAVEL TIME(MIN.' = .11 TC(MIN.) = 11.97 "74. 00 '1' (J hIDDE: 78.0018 CODE -_ 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT ST~EAM 2 ARE= TIME OF CONCENTRATION(MINUTES) = 11.97 RAINFALL INTENSITY CINCH./HOUR) = 4.35 TOTAL STREAM AREA (ACRES) = 2.90 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 7.11 **************************************************************************** FLOW PRO tESS FROM NODE 75.00 TO NDDE 76.00 IS CCJDr::: 0:" »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ===========================~================================================ SO I L CLI~SSIFI C?-HI ON I S liD II S I ~~f3LE Ff-lt'1 I LY DEI/ELDPI'1EI\!T I~UI\!DF'F CDEF'F I C I EI\lT 0:= • ~:'i!500 INITIAL SUBAREA FLOW-LENf3THCFEET) -100.00 UPSTREAM ELEVATION = 319.00 DOWNSTREAM ELEVATION = 317.00 ELEVATION DIFFERENCE = 2.00 URB(,·:)!',I SUB(:~m_:::{..\ OVERL?H'-iI) T I HE OF FL.!:)v,,) (Ivl I 1\IUTtS) ,-fl. :?':?9 1 00 YEm~ Fi:(',~ I l\~F' PIL.L I hiT ENS I T'{ ( I I\~CH / !· .. IOUH) :::: ~5. !.S 11, SUBAREA RUNOFF (CFS) -.61 TOTAL AREA (ACRES) -.20 TOTAL RUNOFF(CFS) -I • • '.:J .1. *******************************************~******************************** FLOW PROCESS FROM NODE 76.00 TO !\lODE 77.00 IB CODE ".::: --------------------------------~------------------------------------------- ============================================~=========~===================== • UPSTREAM ELEVATION = 317.00 DOWNSTREAM ELEVATION = 278.00 STREET L.ENGTH(FEET) = 750.00 CURB HEIGTH(INCHES) = 6. STREET H(:~l....Fl'JIDTH (FF:~ET) ~o: 28. 00 ~3TF~EET CI~OSf.3F{~L'-(DEC II""I{-)L) .. -.0:;;::00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) -2.22 STREET FL.OWDEPTH(FEET) = .21 HALFSTREET FLOODWIDTHCFEET) = 4.40 AVERAGE FLOW VELOCITY(FEET/SEC.) -3.56 PRODUCT OF DEPTH&VELOCITY = .76 STREETFLOW TRAVEL.TIME(MIN) = 3.51 TC(MIN) = 11.81 :1.00 YEr~R HAINF?-=ll....L INTENf.3ITY~II\ICH!!'1()UR) ::: 4.:3t39 BOIL CLJ)GEHFIC{·HIDN IS "D" S I t'K~LE F (:11'"1 I I... Y DEVELOPI''1EhIT F~I..JNOFF· CUEF·-r: I C lENT = . 5!.":500 BUBAREA AREA(ACRES) = 1.30 SUBAREA RUNOFF (CFS) -3.14 SUMMED AHEA(ACRES) = 1.50 TOTAL RUNOFF(CFS) -3.74 END OF SUBAREA STREET FLOW HYDRAULICS~ DEPTH (FEET) = .25 HALF STREET FLOODWIDTH(FEET) -6.05 FLOW VELOCITY(FEET/SEC.) = 3.86 DEPTH*VELOCITY = .96 **************************************************************************** FLOW PROCESS FROM NODE 7"7. 00 TO hlDDE 7B. 00 IS; CODE :,,: 4- ---------------------_._---------------------------------------~----~--~-~--- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< 1'''=~~;;~~;~~~~~~:7~:=7~~~!;~~~!~~;~~;~:;;:;~7'';~~~~;============,,============= PIPEFLOW VELOCITY(FEET/SEC.) = 9.2 UPST~EAM NODE ELEVATION = 278.00 DOWNSTREAM NODE ELEVATION = 274.00 FLOWlENGTHCFEET) = 80.00 MANNINGS N = .013 13 P/EN PIPE rH/4r"IETEH ( 1 NCH) ::'-~ Hi. 00 NU!"!BER OF P I PC:;~::: 1. PIPEFLOW THRU SUBAREA(CFS) -3.7l *********~****************************************************************** FLOW PROCESS FROM NODE 77" 00 TO hlODE Ie. 00 I E; CODE ":" .»»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< • :> > >:> > {.:) 1\1 D CDt"IPUTE \i(")F~ I DtJE; CDNFL.\..H::::NCED !:TTTU:;: Pl 1""1 V {:\LLH:::S::'::: < < < < ==~~~;~~~~~~=~~~~~;=~;~;=;~;=;~;~;~~~~~7=;7~~~~==;=;~~~===================== TIME OF CONCENTRATION (MINUTES) = 11.96 Pf.) I NF flU. I 1···.rrEN~3 I TV' (I NCH" I HDUF:::) ::::: 4 • :~:;~5 TOTAL STREAM AREA (ACRES) = 1.50 TOTAL STREAM PUNOFF(CFS) AT CONFLUENCE = 3.74 CONFLUENCE INFORMATION~ STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) -----------------------------------------~-----------------------------~---- 1 1 "'" • "..,fft 86 1 1 · 29 4 . ~.51 f:3 ~:2 7 . 1 1 1 1 · 97 Lt· d ~J~(~;:: :3 :~: tt 74 1 1 · 1=1 l':J 4. ::::;!5~S PAINFALL-INTENSITY-RATID CONFLUENCE FOPMULA USED FOR 3 STREAMS VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS~ COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PUNOFF(CFS) = 26.31 TIME(MINUTES) -11,,292 TOTAL AREACACRES) = 10.70 **************************************************************************** e···· .... ~ ~.~ ~:: ::~ ... ~~: ~~ :~~ ::: ~=:~ ::~ _ ... ~~~ ~~:: ~:~ .. -~~: ~~ :: -.. -' ...... ~:~ -~ .. ~::~: _.-~~ ~~ .... ~~~ ~~ ~:: ---........ ~~ ~~ ~ :::~ ~~ ._-.:. ~~ ..... :~: ~:~~: _ ... ~~: --........... ~~ ... -... -... _.---_ ....... -.. --..... _.-_ .. , »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ========================================:=================================== DEPTH OF FLOW IN 24.0 INCH PIPE IS 12.7 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 15.7 UPSTREAM NODE ELEVATION = 274.00 DOWNStREAM NODE ELEVATION = 258.00 FL.CJI,\JLENGTf·1 (FE:~ET)::::: ~500. 00 t71(.·~lt\lhl I hi Eif::: N "!" " 01::::; GIVEN PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES -1 PIPEFLOW THRU SUBAREA(CFS) -26.31 TRAVEL TIMECMIN.) = .32 TC(MIN~) = 11.61 FLOW PROCESS FROM NODE 7f:3. 00 TD hlcmE D2.00 H3 com::: :::: ------------------------------------------------------~--------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ===============================================================~============ CONF~UENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE~ TIME DF CONCENTRATIONCMINUTES) = 11.61 RAINFALL INTENSITY (INCH.!HOUR) = 4.44 TOTAL. STREAM AREA (ACRES) = 10.70 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 26.31 .~~. ~~. -jl. ~i!' :;.. ·il· -)i. 11· ·x, ~~. ";. .. ~~. ·il· 7l. ll'1!' * ~* *. "". "fi. .. ~. -:-,. ~* -ro. :1(. ,~. -tl .. j!--)\. :~. ,>(-.;-t· -j!."il-:~.~. 7i· -:~. ~l(. ~\!. "I!' .;~ •. ,~. il' .* .. :fl .• )\. :>(. ~~ .;~~ .)~ ~!. "fl, "t:. ~>i' .;~-~~. :~ .. ,~. 1i .. *. :~. ·il· 'il-.,!. -)!-* -0'1' * :~.;,.i: -t!. ';i' "(; .• j!. FLOW PROCESS FF:::OM NODE 83.00 TO hmDE 84.00 IS CODE = 2 ------~------------------------------------------------------~-------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< I ::::::::::::::::*.:::::.:::::::::::::::::::::::::::::::::;::::::::::::::::::::::::::::::::::::::::::.::::-.:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::.-:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::.::::::::::::'::::,::::::::::::::::::::::::::::::::-.::::::::::::::::::::::::::::::::::::::::::::::.::::::::::::-::::::::::::::::::::::::: SO T L CLF)GE; 1Ft Cl::-~T I C)l"~ I ~3 II D II E)INC3Lt::~ FPd···III .... '( m3:V[7~L..DF'ti!ENT HUfiorF LCIEFFICIENT ::0 ,,~5~':;·:)') • • UPSTREAM ELEVATION = 345.00 DOWNSTREAM ELEVATION -343.00 ELEVATION DIFFERENCE -2.00 URBAN SUBAREA OVERLAND TIME OF FLOW (MINUTES) - 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 5.511 .61 SUBAREA RUNOFF(CFS) - TOTAL AREACACRES) = .20 TOTAL RUNOFF(CFS) - ***********************************************************~**************** FLOW PROCESS FROM NODE 84. 00 TO I\IODE B1.00 IS CODE :.:: »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ====================================================================~======= UPSTREAM ELEVATION = 343.00 DOWNSTREAM ELEVATION = 259.00 STREET LENGTH (FEET) = 1000.00 CURB HEIGTH(INCHES) = 6. BlnEET I···!AI....FI;HDTH (FEET) :::: 28. 00 STF~EET 'GRClSElF{)U ... <DE:CH1{~L) ...... 0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 7.95 STREET FLOWDEPTH(FEET) = .28 H{~LFSTREET FLOODI,'J I DTH (FEET) :::: 7. "7 :I. AVERAGE FLOW VELOCITY(FEET/SEC.) -5.58 PRODUCT OF DEPTH&VELOCITY = :1..56 STREETFLOW TRAVELTIME(MIN) = 2.99 TC(MIN) = llr29 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.5:1.9 SOIL CU~S3IFICATION IS liD" BINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA (ACRES) = 5.90 SUBAREA RUNOFF (CFS) -:1.4.66 BUMMED AREA (ACRES) = 6.10 TOTAL RUNoFF(C~S) -15.27 Et···.ID DF SUBf~IRE:(-) STHEETFLOI;J HYDF;:{~UL I CS ~ DEPTH (FEET)::: . ~.:;':I. I-'IAL.FSTPEET FL.0.0 m'J I DTH (FE:::ET) ..... :I. O. 20 FLDIJJ VEI.. .. OC I TV (FEET I SEC.) ".::: 6. 60 DEPTH·lf'v'ELDC I TY ~:" 2 u 1 B **************************************************************************** FLDW PROCESS FROM NODE 81.00 TO NODE 82.00 IS CODE = 4 »»>COMPUTE PIPEFLOW TRAVELTIME THHU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< :~ ::::: ::::: ::.-.: :.:'': ::;:: :::: ::::::::::::::::::: ::::: ::::: ::::::::: ::: ::::::=::::: ::.:::::::::::::::::::::::: == =::::: ::::: ::::::-.:: :::::::::::::: :::: :::: :::::::::::.::: :.:'..!!::--=::::::::::::: ::::: :::::::::~: :::::. :::.:':::: ::::: ::::: ::::: :::::::.:::::. ::::::::: :::.-: :::::::::: :::::-.:::. ::::: ::::: :.::: :::: :!.: ::::::::: ::.::::::: :::: = ::::~ DEPTH OF FLOW IN 18.0 INCH PIPE IS 12.9 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 11.3 UPSTREAM NODE ELEVATION = 259.00 DOWNSTREAM NODE £LEVATION = 258.00 FL.Dv·JL.ENGTH (FEf:':T)::: ~::.O. 00 Iv! r.,t\1 hi I Nm:l hi :::: u <) 1 ~5 GIVEN PIPE DIAMETERCINCH) = 18.00 NUMBER OF PIPES -1 PIPEFLDW THRU SUBAREA (CFS) -15.27 TRAVEL TIMECMIN.) = .04 TC(MIN.) = 11.33 **************************************************************************** FLOW PROCESS FRDM NODE Bl.OO TD NODE 82.00 IS CODE ~::: ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CDNFLUENCE««< =========================================================================~== • CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 AHE~ TIME OF CONCENTRATION(MINUTES) = 11.33 RAINFALL INTENSITY (INCH.!HOUR) = 4.51 TOTA~ STPEAM AREA (ACRES) = 6.10 TOTAL STHEAM RUNOFF(CFS) AT CONFLUENCE = 15.27 ************~********************************************~****************** FLOW PROCESS FHOM NODE ::::: :::::::: :::::::; :::::.:;::;::::::::: ::::: :;::: ::::; =::::::: :::-.::::: ::::: ::-.:: ::::: ::::: ::::: ::::: ::::: :::: ::'.::::::::: :-.::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: ::.:: ::::: :::: :::::::::: ::: ::::: ::::: :::: ::::: ::::: ::::::::: ::::: ::::: :::::::::: :::: ;;::: ::::: :'::: ::::: ::::: =.: ::::: ::::: ::': ::::: ::::: :::: ::::: ::::: ::::: :::: :::: !'~-::: ::::: ::::: :::::::::: :::: SO I L CI.... (,·'18 £::; I F" I CnT I ON I S II D II E3nmLE FI~)I'''IILY DEVELDPl'"IEhIT RUNDFF COEFFICIEJ·lT ::::: ,,5~500 INITIAL SUBAREA FLOW-LENGTHCFEET) -100.00 UPSTREAM ELEVATION = 344.00 • DmtJt'ISTRf:J:1IV\ ELEW~ T I ON ::: ~542. 00 ELEVATION DIFFERENCE::::: 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) -8.299 • 100 YEAR RAINFALL INTENSITY (INCH/HDUR) ::::: 5.511 SUBAREA RUNOFF(CFS) -.61 TOTAL AREA (ACRES) ::::: TOTAL RUNOFF (CFS) -.61 **************************************************************************** FLOW PROCESS FROM NODE 1:36. 00 TO NDDE IJ7. 00 I S CODE :::: ---------------------~-----------~------------------------------------------ =:::::========================~==============::::::::::========:::::======================== UPSTREAM ELEVATION::::: 342.00 DOWNSTREAM ELEVATION::::: 269.00 STREET LENGTH(FEET) = 900.00 CURB HEIGTH(INCHES) = 6. STREET HAlFWIDTH(FEET) = 28.00 STREET CRDSSFALL(DECIMAL) .-.0200 SPECIFI~D NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLDW(CFS) -4.08 Srrm:=::ET FLmJDEPTI···1 (FEET) = • :7::3 HALFSTREET FLOODWIDTH(FEET) = 5.23 AVERAGE FLOW VELOCITYCFEET/SEC.) -5.22 PRODUCT OF DEPTH&VELOCITY ::::: 1.20 STREETFLOW TRAVELTINECMIN) = 2.87 TC(MIN) = 11.17 100 YEAR RAINFALL INTENSITYCINCH/HOUR) = 4.549 f~OII.... CU:~SE:::rFICATICJN IS liD" 5 I n(3LE F' {:~\\1 I LY DE')ELOPI'·1ENT F~UNOFF COEFF I C 1 E:NT ::::: . ~5!.:500 BUHM~Er~ (:')RE?) (ACHEE;)::: 2 .BO ~~:lUB(:~F;:E?"' r~Ln\IDFF (CFB) _. 7. O:l SUMMED AREACACRES) = 3.00 TOTAL RUNOFF (CFS) = 7.61 END OF SUBAREA STHEETFLOW HYDRAULICS: DEPTH (FEET) = .28 HALF STREET FLOODWIDTH(FEET) ::::: 7.71 FLOW VELOCITY(FEET/SEC.) = 5.34 DEPTH*VELDCITY = 1.50 **************************************************************************** FLOW PROCESS FHOM NODE 87. 00 TO !\IDDE D2" 00 I E~; CODE ::: 1.1· -----------------------------------------------------~-----------~-------~-- »»>COMPUTE PIPEFLOW TRAVELTIME THHU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< =========================~======================:::::==~===============~======== DEPtH OF FLOW IN 18.0 INCH PIPE IS 6.0 INCHES PI PEFLCM 1·./ELClC:r. TY (FEET IflEe.) :::: 1!.1·. 9 UPSTREAM NODE ELEVATION = 269.00 DOWNSTREAM NODE ELEVATION = 258.00 FLOWLENGTH(FEET) = 100.00 MANNINGS N = .013 13 I VEN P I FE D I At"IETEn ( INCH)::: 1 El. 00 NUHBEH OF P I PES _... 1- PI PEFLOl!J TI···IF;:U SUB(.:iREA C CF~5) ---, " 6:1. TRAVEL TIMECMIN.) = .11 TC(MIN.) = 11.29 • • ti:.)to .j(--1(--l(-* .. j( •• * .j(-0)(_.* -Y-e -:-::-~e * -i\C .j(-*.~ -l(--l<c .;-(-.?\C 1(-·K-.j(-.y.-·ff,c .1(-·i(-~~-.l-< •• * ·)<c .j(--)<, ·lIe *.* 0)(-.j(-·H··!':-·lie .j(-* * .1(_.it-"* .y.-.j(-olio "Yc i~·~ .)(-.l(-* .j(-.J<:-.),' .;\~ .j(_.M-*.*.*.f:-1(-.1(-.1(-* -l'~ * ·l~· FLOW PROCESS FROM NODE 87.00 TO NODE 82.00 IS CODE = 1 ... M ..... _ ..... ; ......... _ .. _ ................. __ ............... _ .. _ .. _ .................... ____ ......................... _ ..... ___ ... ___ .......................................... _ ........ __ ...... __ .... _ ... ': ...................... 1 ....................... _._ .. ____ ... __ ..... _ ..... __ ....... _ ... __ " ... .. »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»~AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< ===================================================~==~=======:::::============= CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE~ TIME OF CONCENTRATION (MINUTES) = 11.29 I':\:('UNF(')LL II\ITENBITY (INCH:/HDUFO .. _. ~L 15:,;:: I ' ... J I I' Ii... ;::, I I \.1 •... '·11 I 1·(I •. ..II".,: •• .i!··I·· t. : ... ,1" ;::,,' H i I ... , I .. .! !,!! ... L.' .. !!::.hii .• ,t.:. ... inC·.1. CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY 1\IUt"IBEH (CFS) (t···1IN.) (It\ICI"'!/HDUF,) ----------------------------------------------------------------------------• 1 ::;~t) n ~:'1 1-1-. 6l 4. ll·~~:.·7 2 :I. ~5. '2:7 1 1 . :33 4. ~:5()f:3 ~$ 7. 61 1 1 :""1 j'"\ t:l· n ~520 " .t::.7 RAINFALL-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS~ 48.82 48.76 48.68 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS~ RUNOFF (CFS) = 48.82' TIME(MINUTES) -11.611 TOTAL AREA (ACRES) = :1.9.80 **************************************************************************** F~OW PROCESS FROM NODE 82~00 TO NODE 88.00 IS CODE = 4 ..... _ ............ _ .......... _ ............................ H ..... __ ...... _ ... __ ~ .......... _ ................ _ .. _ .......... _ ............. _ ...................... _ ..... ____ ..... ____ ;._ .......... _ ... _ ............ _ ............ _ ................. _ .. _ .. _ .............................. _.;."':" .. _ ...... _ ... _ ................ . »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< =====================================~====================================== 'DEPTH OF FLOW IN 36.0 INCH PIPE IS 15.5 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 16.8 UPSTREAM NODE ELEVATION = 258.00 DOWNSTREAM NODE ELEVATION = 243.QO FLOWLENGTH(FEET) = 350,,00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREA (CFS) -48.82 • TRAVEL TIMECMIN.) = .35 TC(MIN.) = 11.96 **************************************************************************** FLOW PROCESS FROM NODE !32. 00 TO NODE 8B.OO IS CODE :::: 1 ----------------------------------------------------------------------------»»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE= TIME OF CONCENTRATION (MINUTES) = :1.1,,96 RAINFALL INTENSITY (INCH./HOUR) = 4.35 TOTAL STHEAM AREA (ACRES) = 19.80 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 48.82 **************************************************************************** FLOW PROCESS FROM NODE 09.00 TO NODE (:;'0. 00 I S CODE :::: -------------------------------------------------~-------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< =========================================================~================== • SOIL CU·)SBIFICATIDhl IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTHCFEET) -100.00 UPSTREAM ELEVATION = 294.00 DOWNBTREAM ELEVATION = ELEVATION DIFFERENCE = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOW (MINUfES) - 1 ()() YE:::{:~f~~ F;~{) I t\f~~' {:)LL.. I t~··I .. rE::t\I~3 I 'T'Y ( I t\~C:I'1 / !"1()t..lF~) ::::: ~.::" ~5 j. t SUBAREA RUNOFFCCFS) -.61 TOTAt AREACACRES) = .20 TOTAL RUNOFFCCFS) - ~_ow PROCESS FROM NODE . (7'0" Of.) TD N(jDr~ 91.00 IB CD DE :::: .61 • »»>COMPUTE STREE1FLO~ TRAVELTIME THRU SUBAREA««< ===========================================================================~ UPSTREAM ELEVATION = 292.00 STREET LENGTH (FEET) = 900.00 STREET HALFWIDTHCFEET) = 28.00 DDv·J!\IE)TF;:E(·~t··1 ELEl..)r~iT I ON ::::: 277.00 CURB HEIGTH(INCHES) = 6. STREET CROSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLDW(CFS) -7.83 STREET FLOW DEPTH (FEET) = .35 HALFSTREET FLOODWIDTH(FEET) = 11.02 AVERAGE FLOW VELOCITY(FEET/SEC.) = 2.93 PRODUCT OF DEPTH&VELUCITY = 1.02 STREETFLOW TRAVELTIME(MIN) = 5.11 TC(MIN) = 13.41 100 YEAR RAINFALL INTENSITY (INCH/HOUR) = 4.044 ~:30 I L. CL('~::3~~; I F I C('~T I ON I f::; II D II SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA (ACRES) = 6.30 SUBAREA RUNOFF(CFS) -14.01 SUMMED AREACACRES) = 6.50 TOTAL RUNOFFCCFS) -14.62 END OF SUBAREA STREET FLOW HYDRAULICS~ DEPTH (FEET)::" . !.J·l H(':jLFsn~EET FLOOD!I·j I DTI .. ·I (FEE~T) .... :L 4" ~:,.t.f FLOW VELOCITY(FEET/SEC.) = 3.36 DEPTH*VELOCITY -1.39 ************************************************************~*************** FLOW PROCESS FROM NODE 9:L.00 TO NODE 97.00 IS CODE = 4 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ===========================================================================~ • DEPTH OF FLOW IN 24.0 INCH PIPE IS 10.6 INCHES PIPEFLOW VELOCITYCFEET/SEC.) = 10.9 UPSTREAM NODE ELEVATION = 277.00 DOWNSTREAM NODE ELEVATION = 268.00 FLDvJLE::t--IC:),TH (r::'EET) = ~:.OO. 00 17'1{\NN I NGS N":: » 0:1. :~:. GIVEN PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREACCFS) -14.62 TRAVEL TIME(MIt--I.) = .46 TC(MIN.) = 13.87 **************************************************************************** 92.00 TO NDDE 9::~;. 00 I S CODE ::: -------------------~-------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ===========================================================~========~======= BOIL CLf:iSEnFIUHIm··~ IS liD" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH (FEET) -100.00 UPSTREAM ELEVATION = 294.00 DOWNSTREAM ELEVATION = ELEVATION DIFFER~NCE = URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) - :LOO YEAR RAINFALL INTENSITYCINCH/HOUR) = 5.51:1. SUBAREA RUNOFF(CFS) - TOTAL AREA(ACRES) = .20 TOTAL RUNOFF (CFS) - I l(-.r.:-.~-'It .!~_.* -)(-*.* * 'f" -l(-·li-.~-·if .,,{. it -l(-'j{-'lio ·~"·it * ·If,,,," .1(-.!'l-.1(-.l(_.!'l-.1(c 'l'<' 'j', 'l'~ 'f', -1(_.!'l--1'<' 'l'<' .;.:-.ji-.f:-.f< .• * ·,:f·*·jl-,1(-,* .. j{-'l(-~_.* ·x-.r. •. y: ,*. * .j{. -l( .• j{. 'i':' '1(-·li· .!(. ·it ·li· *.;<. * .~: .. ~ * 'l(-* ·i':· FLOW PROCESS FROM NODE 93.00 TO NODE 94.DO IS CODE = 6 ---------------------------------------------------------~------------------ »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< =====================================================================~=~==== UPSTREAM ELEVATION = 292.00 DOWNSTREAM ELEVATION = STREET LENGTH(FEET) = 900.00 CURB HEIGTH(INCHES) ~ 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALLCDECIMAL) 269.00 SPEC I F I ED 1\IUI'-1BEF;: C1,,,-F~_" --,-!"~ff~~~I.::.:. .. J-.:::-~=-.fl.:....:"I....:::';:E:::::::'!::::.::"..:..p::::._::l-;;.....:::r.C.:o.:{~.:....:p.:....:n~·{.o.:::I..:..N:..:::G::........:...F..:..::L::..:..)!\~.!C::..:.)r--"·r~'-.. _-_" --.:~::::.,::: _______________ .. STREET FlOWDEPTHCFEET) = .33 HAlFSTREET FLOODWIDTHCFEET) = 10.20 AVERAGE FLOW VELOCITYCFEET/SEC.) = 3.53 PRODUCT OF DEPTH&VELOCITY = 1.17 fn·HEE"I"'FLOl;.j TH('·~VE1 .. T I t'1E C tvl I 1'·.1) :,.:: 4" 2~:; TC (1"1 I 1\1) =,.: 12. ~:;4 • 1 00 YE{:~R R{~ I NF (·~LL I NTEN~3 I TY ( I t"~CI·1/1"IOI..JR) ::: 4. 2::::: 1 ~mI L.. CLA~;S IF I CAT ION I E3 "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENt = .5500 I SUBAREA AREA (ACRES) = 6.40 SUBAREA RUNOFFCCFS) = 14~86 SUMMED AREA(ACRES) = 6.60 TOTAL.. RUNOFF(CFS) = 15.47 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .40 HALFSTREET FLOODWIDTH(FEET) = 13.51 FLOW VELOCITY(FEET/~EC.) = 3.98 DEPTH*VELOtITY = 1.58 **************************************************************************** FLOW PROCESS FROM NODE cf 4. 00 TO NODE C'?7.00 IS CODE ::::: ---------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< ===============================================~============================= DEPTH OF FLDl'" IN 36. 0 INCH F' I PE I ~3 1. O. 8 I I\~CHEB PIPEFLOW VELOCITY(FEET/SEC.) = 8.7 UPSTREAM NODE ELEVATION = 269.00 DOWNSTREAM NODE ELEVATION = 268.00 FLOWLENGTH(FEET) = 60.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES -1 PIPEFLOW THRU SUBAREA(CFS) = 15.47 TRAVEL TIME(MIN.) = .11 TCCMIN.) = 12.66 FLOW PROCESS FROM NODE 94.00 TO NODE 9'7. 00 I £3 CClDr~~: ::" »»>ADDITION OF SUBA~EA TO MAINLINE PEAK FLOW««< ============================================================================ 100 YEAR RAINFALL INTENSITY (INCH!HDUR) = 4.197 t3DIL CI.. .. r:i\:3\3IF·IC(.~TION. IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREACACRES) -6.30 SUBAREA ·RUNOFFCCFS) -14.54 TOTAL AREA (ACRES) -12.90 TOTAL RUNOFF(CFS) = 30.01 TC(MIN) = 12.66 *********************************************************~****************** FLOW PROCESS FROM NDDE ';'7. 00 TO NODE 8B. 00 I ~3 conE :::: ------------------------------------------------------------------~--------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PlptSIZE««< ============================================================================ DEPTH OF FLOW IN 36.0 INCH PIPE IS 10.4 INCHES PIPEFLOW VELOCITYCFEET/SEC.) = 17.7 UPSTREAM NODE ELEVATION = 268.00 DOWNSTREAM NODE ELEVATION = 243.00 FLOWLEN8TH(FEET) = 350.00 MANNINGS N = .013 GIVEN PIPE DIAMETERCINCH) = 36.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREA(CFS) -30.01 TRAVEL TIME(MIN.) = .33 TC(MIN.) = 1.2.99 **************************************************************************** FLOW PROCESS FROM NODE 97.00 TO NDDE t3B. 00 I £.; CODE :::: 1. »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< • • CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) = 12.99 RAINFALL INTENSITY (INCH./HDUR) = 4.13 TOT?~L ~rrrn::'(:~I·/1 ARE (.:1 «('~CF;:E::S):::" :I. 2. 9() T01""(":)L. . STF~E(~"·'1 FU.JNOFF (Cn3) I:n CONFI...UH·.ICr::: "::: :::::0", O:l »»>RATIONAL. METHOD INITIAL SUBAREA ANALYSIS««< ==============================~============================================= E:mIL. CLIISHIFICATIOI\1 IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL. SUBAREA FL.OW-L.ENGTH(FEET) -100.00 UPSTREAM ELEVATION = 280.00 DOWNSTREAM EL.EVATION = 278.00 EL~VATION DIFFERENCE = 2.00 URBAN SUBAREA OVERL.AND TIME OF FL.OW(MINUTES) -8.299 100 YEAR RAINFAU_ INTENSITY(INCH!HOUR) = 5.511 SUBAREA RWNOFF(CFS) -.61 TOTAL AREA(ACRES) = TOTAL RUNOFF (CFS) -.b1 **************************************************************************** FLOW PROCESS FROM NODE (76. 00 TO NODE '·l'ti. 00 I f:3 CODE :"' ---------------------------------------------------------------------------- »»>COM~UTE STREET FLOW TRAVELTIME THRU SU8AREA««< ::::: ::-.:: =:: :::: ::::: ::::: ::::::::: :::::-.:: :::-.: ::::: ::::: :.'::: ::::: :::: ::-.:: ::::: ::::: ::::: ::::: ::::: :!!':! :::: :!::: :::: :::: :::: :::: :::::::::::= :::-.:":::::::::: ::;: ::::: ::::: ::::::::: ::::: ::::: ::-.::::::: =.::::;: ::::::::: :::: :::: ::-:::::-.:: ::::: :;::: =:= ::'':: :::::::::::.:: ::::: ::::: ::::: ::::: ::::: :::.::;::: ::::: :-:::: =::: :::;: ::::: ::::: ::::;::-:: :::: :::: UPSTREAM ELEVATION = 278.00 DOWNSTREAM ELEVATION = 244.00 STREET L.ENGTH(FEET) = 500.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFALLCDECIMAL) -.0200 SPECIFIED NUMBER OF HAL.FSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOWCCFS) -4.88 STREET FLOWDEPTH(FEET) = .25 HALFSTREET FLOODWIDTHCFEET) = 6.05 AVERAGE FLOW VELOCITY(FEET!SEC.) -5.03 PRODUCT OF DEPTH&VELOCITY = 1.24 STREETFLOW TRAVELTIMECMIN) = 1.66 TC(MIN) = 9.96 :1.00 YEAR RAINFALL. INTENSITYCINCH/HOUR) = 4.900 BOI L CI.J~,~:)~3 I F I CP,T I ON IS" D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREACACRES) = 3.20 SUBAREA RUNOFF (CFS) -8.62 SUMMED AREACACRES) = 3.40 TOTAL RUNOFF (CFS) -9.23 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTHCFEET) = .30 HALF STREET FLOODWIDTH(FEET) -8.54 FLOW VELOCITYCFEET/SEC.) = 5.45 DEPTH*VEL.OCITY = 1.62 **************************************************************************** FLOW PROCESS FROM NODE ':"E5. 00 TO !\IClDE 8B. 00 I B CfJDE ":, ---------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««<· »»>USING USER-SPECIFIED PIPESIZE««< ===============================================~===============~============ DEPTH OF FLOW IN 18.0 INCH PIPE IS 8.7 INCHES PIPEFL.OW VELOCITYCFEET/SEC.) = 10.8 UPSTREAM NODE ELEVATION = 245.00 DOWNSTREAM NODE ELEVATION = 243.00 FLOWLENGTI·-l (FF:~ET):::~ 50. 00 t"lf~t\INIt\IGS N ".":: . 01~~: GIVEN PIPE DIAMETER CINCH) = 18.00 NUMBER OF PIPES -1 P I PEFL.OL~ TI···lnU BUB(:1F~EA (eFS) .-'7' • Z::' ·THtll./El... T II'IE 0'1 H.I.)::-.:: " Of.3 TC (n HL) ::::: :t (1.0::::; * * .~:"* .. )!-·lIr *-* .): i{. ,1', .* .~: .. M-.* .*.j\-·l',~.yo 'Yr~: .* if: -l("* -)!;"*.lE-'X' *.* *.* *.* * 'li' .l( •• )l-.* *.)!-oj( •• *.y, •. lE-.r< * ~, .. ~;. -ji •. )!': '* -?i. .. * -ji. ';,\~ * ;* .*. ·Yo·flo * :l~ of" 'Yr .j<: .~:.* -l<: -l<:'*~' .j';' oj( •• j'" FLOW PROCESS FROM NODE 98.00 TO NODE 88.00 IS CODE = 1 ---------------------------------------------------------------------------- :>:> > > >DE~3 I GN?HE I NJJEPENDEI',IT STI::;:E?'~1·1 FCm CDNFL.UENCE< < -::: <-< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< ::::::::::::: = =:::::: :::::::: :::::::".:::.-::: :::: ::::::::::::::=:::-.: =:::::::::::::: :-.::::::::::::: ==:::::'.:::::.: :.::::-.::::::::::=:=.:::::::-.:::::: ::::: == ==::.:.::=::::: ::::::-.::::::::::: =.:::::: :::::::: ::::=::::::::::::::.-::::::::: :::::.-::::~::::::: :"M':::::::'::::-'::::: ::::::: :::::::: :::::::: ::::: • CONFLUENCE VALUES USED FOR INDEPENDENT STREAM TIME OF CONCENTRATION(MINUTES) = 10.03 RAINFALL INTENSITY (INCH.!HOUR) = 4.88 TOTAL STREAM AHEA (ACRES) = 3.40 TOTAL STHEAM RUNOFF(CFS) AT CONFLUENCE = C;:' 1°, .. !!" I n .,: ... _1 CONFLUENCE INFORMATION~ STREAM RUNOFF TIME INTENSITY NUI'1BER (CFS) (tT1H~.) (INCH/HOI...JR) ---------------------------------------------------~------------------------ 1 ll·8 " f"'~ :J .~:.. 1 1 . 96 4 .. :~~;51.~· ~;:: 3(> II Ot 1 ~~. c19 4. 12D ":r 9. "..,--:: 10. O~S 4. t37{::l , .. :t . .:.. .... ' n{~ I NF (..~L..L.." ... I NTEI\IS I TY ·· .. nn T I [I CONFLUENCE FClF:t'1tJL(~ U~3ED FDH :~:. E;TF(EPlt'''IS VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWSn 85.51 84.10 78.22 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFFCCFS) = 85.51 TIME(MINUTES) -11.958 TOTAL AREACACRES)::::: 36.10 **************************************************************************** FLOW PROCESS FROM NODE 100 .. 00 TO NODE 101 K 00 IS CODE "" ---------------------------------------------------------------------------- • > > > > >H?'iT I DI\I('~L t'/IETHOD I NIT I I!.':)L ~3UB{':')HE(.:1 ?'~Nr-il...YS I S< < <: < <: =========================================~==========~=======~=========~===== I SO:[ L. CL..f~SE I F I [;(,,)'1" I 01\1 I ~3 II D 11 RURAL DEVELOPMENT RUNOFF COEFFICIENT = .4500 NATUHAL WATERSHED NOMOGRAPH TIME OF CONCENTRATION WITH 10-MINUTES ADDED::::: 13 .. 49(MINUTES) INITIAL SUBAREA FLOW-LENGTHCFEET) -900 .. 00 U~STREAM ELEVATION = 425.00 DOWNSTREAM EL.EVATION = 330.00 ELEVATION DIFFERENCE = 95 .. 00 100 YE~R RAINFALL INTENSITYCINCH/HOUR) -4.027 SUBAREA RUNDFF(CFS) - TOTAL AREA(ACRES) = 5. be) TOT (.:.)1... r':;:UNOFF (CFS) ::::: 10ul~5 **************************************************************************** FLOW PROCESS FROM NODE ~Ol.00 TD NODE ----------------------------------------------------------------------------»»>COMPUTE PIPEFLOW THAVELTIME THRU SUBAREA««< »»>USINB USER-SPECIFIED PIPESIZE««<: =========:::::=====:::::================:::::=:::::=====================~======:::::~========~== DEPTH OF FLOW IN 18.0 INCH PIPE IS 11.5 INCHES PIPEFLOW VELOCITYCFEET/SEC.) = 8.5 UPSTREAM NODE ELEVATION = 330.00 DOWNSTREAM NODt ELEVATION::::: 328.00 FLOWLENBTH(FEET) = 100.00 MANNINB8 N = .013 GIVEN PIPE DIAMETEHCINCH)::::: 18.00 NUMBER OF PIPES - PIPEFLOW THRU SUBAREACCFS) -10.15 THA~EL TIME(MIN.)::::: .20 TCCMIN.) = 13;69 :!. **************************************************************************** FLOW PROCESS FROM NODE 101" 00 TO t--·.IClDE 1. O~:::" 00 I S CODE ::: 1 -------------------------------------------------------~-------------------- ======~===================================================================== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES): 13.69 RAINFALL INTENSITY (INCH./HDUR) = 3.99 TOTAL STREAM AREA (ACRES) = 5.60 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE 10.15 ,-- **************************************************************************** FLOW PROCESS FROM NODE 102.00 TO Nom=.: 1 o~::.. 00 I ~-3 CODE ::: »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< =======================================================~==================== SOIL CLAf3SIFIC~ATION IS "0" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 NATURAL WATERSHED NOMOGRAPH TIME OF CONCENTRATION WITH 10-MINUTES ADDED = 15.80(MINUTES) INITIAL SUBAREA FLOW-LENGTHCFEET) -700.00 UPSTREAM ELEVATION = 340.00 DOWNSTREAM ELEVATION = 328.00 ELEVATION DIFFERENCE = 12.00 1. 00 YE{.iF': F~fi I t,IF {iLL.. I NtENS I 'fV ( I NCH 11-'IDUF~::' ..... :3. 63(;3 SUBAREA RUNOFF(CFS) -3.60 TOTAL AREACACRES) = 1.80 TOTAL RUNOFF(CFS) - **************************************************************************** FLOW PROCESS FROM NODE 102.00 TO NCmE 1. (J~::'. 00 I ~~ CODE :::: -----------------------------------------------------------------~----------»»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< • :~" ~=~ ~~ ~ ~ ::~ ~ ~ ~~ ~~ ~~~ ::::~; ~ ~ ~~ ~ ~:= ~~; ~;::::;~ ~~;~ :"~ ~ ~~; ~ ;;: ~ ~~;;;;. ~~ 7-~":~; :~~;~ ~~::.~ ~:;:"= ::.~~ ::::;.~ ~~ ~~::: "": :::: =.::::::: :::: ::::: ::: :::: ::::: :~":::::: ~= =::: :::: "~::::::::::: ::::: TIME OF CONCENTRATION (MINUTES) ::: lS.80 RAINFALL INTENSITY CINCH.!HOUR) = 3.64 TOTAL STREAM AREA (ACRES) = 1.80 TOTAL STREAM RUNOFFCCFS) AT CONFLUENCE = 3.60 CONFLUENCE INFORMATION~ ~~:lTHF.:::Al/1 r:;:UhIOFF "I" I t"IE~ I NTENG I 'ry !\IUlvIBEF~ (CFS) (1"1 IN.) ( J hlCH / HOLJH) 1 :1.0. 15 :I. .. ~. . '_'ft 6('7 '":!" • ... 'ft ~~'J{'i() .... .'t .... 60 1. ~5 II ElO ~.::; n 6~;:'El ,.: .. .~:t tI RAINFALL-INTENSITY-RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 1 ~~. 4~::' 1. 2. 86 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) ::: 1.3.43 TIMECMINUTES) -1.3.691. TOTAL AREA(ACRES) = 7.40 **************************************************************************** FLOW PROCESS FROM NODE 1. 0::::;" 00 TO NODE 104. 00 I ~3 CODE :::: -------~-----------------------------------------------~-------------------- I :> >:>:> >C(JMPUTE PI PEFLOl1.J TI:;:{"~/ELT I 1\'11:: THRU SUBAF;:E(::~< <: <: <:-::: »»>USING USER-SPECIFIED PIPESIZE««< :::===::::::::::::====::::::=~=.=.:::=.===========================================~=====d====:::= DEF'TH OF FLO!;) I N :~:4 .. 0 INCH PIPE IS 1. O.~:. I NCHEE; PIPE~LOW VELOCITYCFEET/SEC.) = 1.0.4 UPGTREAM NODE ELEVATION ~ 328.00 DOWNSTREAM NODE ELEVATION ~ 307.00 FLDWLENGTHCFEET) = 750.00 MANNINGS N ~ .013 G II)E:hl p:r. PE D 1. AI""IETEn (H\!CI'''\) :::: 2'q.. 00 HI..JI·y1m:::R DF F' I PES .--:l lRAVEL IIME{MIN.) = 1.20 lC{MlN.) = 14.69 **************************************************************************** FLOW PROCESS FROM NODE 1 O::~;. 00 TO nODI::: 104. 00 I~-3 CODE • .;:: • :>:>:>:> :>DE~3 I Gl\\('~TE I NDEPE~,IDEI\IT f:3Tr~Er-:ll"'l FClH CDt···~FLUEt·'·~CE<: <: -::: <: <: . ==~~~;:~;~~~=~~:~;;=~;~;=;~~=i~~~;~~~;~~=~~~~;~==~=~~~;===================~= TIME OF CONCENTRATION(MINUTES) = 14.89 RAINFALL INTENSITY (INCH.JHOUH) = 3.78 TOTAL STREAM AREA (ACRES) = 7.40 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 13.43 **************************************************************************** FLOW PROCESS FHOM NODE :l 05. 00 TO NOm:~ 106.00 1:3 C(JD.E = ---------------------------------------------------------------------------- >:::-:> > >F~{-Yf ION{-)L l'1ETHOD I hi I T I (.7:)L SUBAF\E('~ Ah\(:2)L YS IS< < < < < ::::: ::::::::::::::::: ::::: ::::::: :::.::::: :::: :-.::: :::::::'.: :::: :::;: :::: ::::: =.: ::::: :::: ::::: ::::: :::::::::::::::::;::::!: ::::: ::::::::::::: ;::: :::-.: ::::: :::: ::;:: ::::::::::::::: ::::: :::::: :.-:: :::: ::::: :::::::::::::::::: ::::::::: ::::::::: = :::: ::."! ::::: ::::: =::::: :::.: ::::: ::-.:::::::::::: ::'': :::::,::::: :::: :::: :::::-:::::::::: ::::::: SOIL. CLASSIFICI~TION IS "0" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTHCFEET) -100.00 UPSTREAM ELEVATION = 312.00 DOWNSTREAM ELEVATION = 310.00 ELEVATION DIFFERENC£ = 2.00 URBAN SUBAREA OVERLAND TIME OF FLOWCMINUTES) -8.299 100 YEAR RAINFALL INTENSITYCINCH/HOUR) = 5.511 SUB{-1r-~E(":) Fi:l. .. .II'''m::-F (CFS) ..... . 61 TOTAL AREA(ACRES) = .20 TOTAL RUNOFFCCFS) -.61 •. y,.~ 'J(-'* .* .~; ;~ .. ~;.J!:-·r, .j(-.~; .)\-.*.* * .l( .. * 'j(, .l(. ·l(-·it 0)(-.* *.*.j\--¥, .~~ -!I.' O?(, .;;-'Ye'* .r.-·lE· ·1(-·* .j( •• * .j( •• J(. -l(. -l'i-';':'.r,-.;,:. * .~ .. *.* -)1:. *.* 'li~ -l(-* 0)(. * ";( .. * .y, ,,* .j( •• l'{-0)( •• ~( •• l( •. j(: '!i:.* .* 'l( •. )(. *·it FLOW PROCESS FROM NODE 106.00 TO NODE 107.00 IS CODE = 6 »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< =====~===========================~===================~================~===== UPSTREAM ELEVATION = 310.00 DOWNSTREAM ELEVATION = 307.00 STREET LENGTH (FEET) = 900.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 28.00 STREET CROSSFAllCDECIMAL) -.0200 SPECIFIED NUMBER OF HAlFSTHEETS CARHVING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOWCCFS) -7.55 STHEET FLOWDEPTH(FEET) = .43 HALFSTREET FLOODWIDTH(FEET) = 15.16 AVERAGE FLOW VELOCITYCFEET/SEC.) = 1.56 PRODUCT OF DEPTH&VELOtITY = .67 STF~EETF·UJIJ·J TRf.WELT I t··1E (ll IN):'" 9. 61 TC (1'1 I t\l) ::~: 17" 90 100 YEAR RAINFALL INTENSITY (INCH/HOUR) = 3.356 SDIL CU~~mIFICATICJt\1 IS "0" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA(ACHES) = 7.20 SUBAREA RUNOFFCCFS) = 13.29 BUt'1t"IED AHE{') ({:iCF~EB):::" 7" 1.1·0 TCrr f.H... RUNCiFF (CFB) .... 1 ~:;" 70 END OF SUBAREA STREETFLOW HYDRAULICS~ DEPTHCFE[T) = .50 HALFSTREET FLOODWIDTHtFEET) -18.48 FLOW VELOCITY(FEET/SEC.) = 1.97 DEPTH*VELOCITY = .98 I "" **************************************************************************** FLOW PROCESS FROM NODE 107.00 TO NODE 104.00 IS CODE = 4 ---------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAHEA««< :>:>:> > :>UE;I t··.lt! Uf.~EJ~:·-·SPECI F I ED F'I PESI IE:< «< < o ::::: :::::::: ::::: ::::: ::'.:: ::::::: ::::::::: ::::: ::::: :::::::::::::: ::::: ::::::::::::: ::::: ::::::::: :::: ::::: ::::: ::::: ::::: ::::: ::::: ::::: :..-;::::-.: ::::: ::::: ::::: :::::;::: :;::: :::::::::: :::: ;," .. '!:::::: :::: ::::: :::::::;: :::::::::-:::::::.-:: ;::::::::::::: ::::.:::.:: ::::: !" .. O:: :':::.::::= ::::: ::::: ::::::::: :::: ::::::::::: :::: ::::::-:. ::::::::::;;-.: ::::.:= ::;:: PIPEFLOW VELOCITY(FEET/SEC.' -7.9 -.. -..... ~.~._.L'1=··=-.. ~-·~·-~· .. ~· ~~~ __ ~ ___________________________ • I DOWNSTREAM NODE ELEVATION = FLoWLENGTH(FEET) = 60.00 SIVtN PIPE DIAMETER CINCH) = PIPEFLOW THRU 8UBAREA(CFS) = TRAVEL TIME(NIN.) = .13 ~:::Ot:)" 00 .1··1{:~!'-!hII !'-I03B 1\1 :::: • () 1 ::~; J. E: n 00 t···ILH-'IBEH OF P I PE~:) .... 1::::; 11 9() »»>DESIGNATE INDEPENDEN'r STREAM FOR CONFLUENCE««< :I. =========~=====================================================~============ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 AHE~ TIME OF CONCENTRATION (MINUTES) = 18.03 RAINFALL INTENSITY (INCH./HOUR) = 3.34 TOTAL STREAM AREA (ACRES) = 7.40 "rOT (.:iL ~3TPf~('~II"'1 f:~UN(;lFF (CFe) PIT CDNFLL.lEI\iCE: .:::: 1. ~s. 90- ~*************************************************************************** FLOW PROCESS FROM NODE 1. OCr. 00 I B CODE ":: ----------------------------------------------------------------------------»»)HATIoNAL METHOD INITIAL SUBAREA ANALYSIS««< ============================================================================ SOIL CU=,SBIFIC('HION 18 "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH (FEET) -1.00.00 UPSTREAM ELEVATION = 313.00 DOWNSTREAM ELEVATION = ELEVATION DIFFERENCE = URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTEB) - 100 YEAR RAINFALL INTENSITYCINCH/HOUR) = 5.511 SUBAREA RUNOFF(C~S) -.61 TOTAL AREACACRES) = II :~~ () TOTAL RUNoFF(CFS) -,,61 **************************************************************************** FLOW PROCEsS FROM NODE 10':1'. 00 TO 1'·.IODE 104.00 If:; CODE :::: ....... __ ..... MOO. _oo ...... M'" .. " ...... ~ ... "0 .. M" ...... _, .. _ .......... _ .. _ ... _ .......... , ................. _ ..... "_ ........................... _ ..... _0" _ ... _ .................................... _ ............. _ ... _. __ oo .................................. N ..................... _ ........... _ ... ~ ..... _0 .. "oo' __ '! __ ............. .. »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ===~===============~=============================~========================== UPSTREAM ELEVATION = 311.00 DOWNSTREAM ELEVATION = 306.00 STREET LENGTHCFEET) = 550.00 CUHB HEIGTH(INCHES) = 6. STREET HALFWIDTHCFEET) = 28.00 STREET CRoSSFALL(DECIMAL) -.0200 SPECIFIED NUMBER OF HALFSTREETB CARRYING RUNOFF = 2 **TRAVElTIME COMPUTED USING MEAN FLOW(CFS) -1.92 STREET FLDWDEPTHCFEET) = .26 HALFSTREET FLOODWIDTH(FEET) = 6.88 AVERAGE FLDW VELOCITYCFEET/BEC.) -1.62 PRODUCT OF DEPTH&VELOCITY = .43 STREETFLoW TRAVELTIMECMIN) = 5.64 TCCMIN) = 13.94 100 YEAR RAINFALL INTENSITY (INCH/HoUR) = 3.944 ~30 I L CLP,t:lS I F I C{.~IT I Ohl I S II D II SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 SUBAREA AREA (ACRES) = 1..20 SUBAHEA RUNDFF(CFS) - SUMMED AREACACRES) = 1.40 TorAL RUNOFF (CFS) - END OF BU8AREA STREETFLoW HYDRAULICSg DEPTH (FEET) = .30 HALF STREET FLooDWIDTH(FEET) - FLOW VELDCITYCFEET/SEC.) = 1..89 DEPTH*VELDCITY = 8 n ~).f.1. r.::-I • · .. .It) **************************************************************************** FLOW PR8C~SS FROM NODE 1. 04 . 00 I E) CUDE :::: 1 -------------------------------------... _------------------------------------ , -I »»)AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< =====================================~=====================~================ CONFLI..JEhlGE VAI .. "!.JEf3 UEH':::D FOH I !\ID E:r:'G\1D Er·rr STRE{:liv! :!; nn·E ~ TIME OF CONCENTRATION (MINUTES) = 13.94 RAINFALL INTENSITY (INCH.!HOUH) = 3.94 TOTAL STREAM AREA (ACRES) = 1.40 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE - CONFLUENCE INFORMATION~ STHEAM HUN OFF TIME INTENSITY t\!Ut1BEH (eFS) <t'1l N.) ( I NCI·-l / 1·-lOUFn ---------------------------------------------------------------------------- 1 1311 4~'::: iLL R!::l .J ( -. .. ~t.,. 779 ~I~:: 13" '10 1 ,-, C) • ():~:: 3:r ::',11 ::::; 3. 21 1~::: • 9'1-"< .... , It ':~;'44 RAINFALL-INTENSITY-HATIO CONFLUENCE FORMULA USED FOR 3 STREAMS VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: .:;;~t3. 79 27',,85 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) = 28.79 TIME(MINUTES) = 14.895 TOTAL AREA(ACRES) = 16.20 =~===~===~==============================================~=================== END OF RATIONAL METHOD ANALYSIS