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Home My WebLink AboutCT 03-01-02; LA COSTA RESORT SPA; DRAINAGE REPORT; 2005-04-29• 'l:>~ C+~~-0 0 P.'tIf 55 -loo '2.-"2..\. OO~ JOB ____ ----'-__________ _ SHEETNO. ____ \ ___ OF ______ _ CONSULTING CALCULATED BY _--=u,'---'-.::t.:........-_ DATE __ Ol\_\,-2..!_?\~l 05 __ _ CHECKED BY ______ DATE _____ _ PLANNING • DESIGN • CONSTRUCTION BOO.479.3BOB • www.RBF.CDM SCALE ____ N--'l:...:..1>r-=----________ _ Lp.. Cos.YPr. R~SoQ.,\' f. ;S?,f\ , ~~11\-,~~"~~ . i)Q.A,if'3~~ . ~9oq : f\,~~, ~~~,rt\'C:tJ~~ \""7~, ~S~ ,~~ef~, Q~ 'I~~ao~~!~~§, .. ~-~:~~, \~~}. , l\iL~,' ~h%~'O: ~~~O \)~6~' M~~\\~Y':, M%~t(2...' D~~j'SA-lt1?-,~~,~cC\' f\:i{<. LA c.o~TPt O-€-so~ ~D &f,f\' I 9~ fi'A:-'1 2., ~Do~ :~ .. (?~~,~~() Nou~rn SE.(L ~ ,'2.00 '3, :(~t..CUvPfnc:)~" s~Q\w'O N:6\ ~~' ~t~~,\-~~q ~ ~~\ or-Tt-\\. ~ , ~\l ~ol.\,1'TY\-L. -. -. --~,\)'€.. ~U)~~ :=.:,.\ ~lo '). ~ \ ~r,. S\~~ '::' ~D \1 ~l . ' . . . ., ~~tA.::' 4\·t> \: ("t<":::> .~ ",' .. ;, ~~ ,"(l~I.~~~' ,'i~'.~i: /4\.?\ :=. .. D..'7?b ~ 14°1.0 ~p~T1 I!''l'',? " '." {l.~~ . RECElVEn ~ .-.~ .. ----: .. -.. ~~ .... ~6/~()~ (;(03 .•. . ..... APR 2920050 ENGINEER~NG W DE?A~TMi:;NY :c O· Z ~ Of ot-o l [f2.., ) ,n \c . cJ ~ t-.' I ; II II.· 11 INITIAL SUBAREA FLOW-LENGTH = 100.00 UPSTREAM ELEVATION = 76.00 DOWNSTREAM ELEVATION = 70.00 ELEVATION DIFFERENCE = 6.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) = 5.746 *CAUTION: SUBAREA SLOPE EXCEEDS COUNTY NOMOGRAPH DEFINITION. EXTRAPOLATION OF NOMOGRAPH USED. TIME OF CONCENTRATION ASSUMED AS 6-MINUTES 100 YEAR RAINFALL INTENSITY (INCH/HOUR) = 6.442 SUBAREA RUNOFF (CFS) = 1.34 TOTAL AREA (ACRES) = 0 .40 TOTAL RUNOFF (CFS)· = 1.34 **************************************************************************** FLOW PROCESS FROM NODE 401.00 TO NODE 401.10 IS CODE = 51 »»>COMPUTE TRAPEZOIDAL CHANNEL FLOW««< »»>TRAVELTIME THRU SUBAREA (EXISTING ELEMENT) ««<. ==========================~=:~-==~:======================================== ELEVATION DATA: UPSTREAM (FEET) = 70.00 DOWNSTREAM (FEET) = 36.00 CHANNEL LENGTH THRU SUBAREA{FEET) = 910.00 CHANNEL SLOPE 0.0374 CHANNEL BASE (FEET) = 10.00 "Z" FACTOR = 10.000 MANNING'S FACTOR = 0.035 MAXIMUM DEPTH(FEET) = 5.00 CHANNEL FLOW THRU SUBAREA {CFS) = 1.34 FLOW VELOCITY(FEET/SEC) = 1.53 FLOW DEPTH(FEET) = 0.08 TRAVEL TIME(MIN.) = 9.92 Tc(MIN.) = 15.92 LONGEST FLOWPATH FROM NODE 400.00 TO NODE 401.10 = 1010.00 FEET. **********************~***************************************************** FLOW PROCESS FROM NODE 401.10 TO NODE 401.10 IS ~ODE = 81 »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< ============================================================================ 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.433 *USER SPECIFIED (SUBAREA) : COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .7200 S.C.S. CURVE NUMBER (AMC II) = 0 SUBAREA AREA(ACRES) = 15.9.0 SUBAREA RUNOFF (~FS) = 17.05 TOTAL AREA(ACRES) = 7.30 TOTAL RUNOFF(CFS) = 18.39 TC{MIN) = 15.92 **************************************************************************** FLOW PROCESS FROM NODE 401.10 TO NODE 402.00 IS CODE = 51 »»>COMPUTE TRAPEZOIDAL CHANNEL FLOW««< »»>TRAVELTIME THRU SUBAREA (EXISTING ELEMENT) ««< ============================================================================ ELEVATION DATA: UPSTREAM (FEET) = 36.00 DOWNSTREAM (FEET) = 11.20 CHANNEL LENGTH THRU SUBAREA (FEET) = 700.00 CHANNEL SLOPE = 0.0354 CHANNEL BASE (FEET) =' 10.00 "Z" FACTOR = 10.000 MANNING'S FACTOR = 0.035 MAXIMUM DEPTH{FEET) = 5.00 CHANNEL FLOW THRU SUBAREA (CFS) = 18.39 FLOW VELOCITY{FEET/SEC) = 3.55 FLOW DEPTH(FEET) = 0.38 TRAVEL TIME(MIN.) = 3.29 Tc(MIN.) = 19.21 LONGEST FLOWPATH FROM NODE 400.00 TO NODE 402.00 1710.00 FEET. **************************************************************************** . . FLOW PROCESS FROM NODE 402.00 TO NODE 402.00 IS CODE = 81 l. I I I I , I t· • »»>ADDITION OF' SUBAREA TO MAINLINE PEAK FLOW««< ======================================~===================================== 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.041 *USER SPECIFIED (SUBAREA) : COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .7200 S. C. S. CURVE NUMBER (AMC II) = 0 SUBAREA AREA(ACRES) = 5.40 SUBAREA RUNOFF(CFS) 11.82 TOTAL AREA(ACRES) = 12.70 TOTAL RUNOFF(CFS) = 30.22 TC(MIN) = 19.21 **************************************************************************** FLOW PROCESS FROM NODE 402.00 TO NODE 403.00 IS CODE = 41 »»>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE (EXISTING ELEMENT) ««< ============================================================================ ELEVATION DATA: UPSTREAM (FEET) = 11.20 DOWNSTREAM (FEET) = 10.81 FLOW LENGTH(FEET) =. 15.30 MANNING'S N = 0.013 DEPTH OF FLOW IN 36.0 INCH PIPE IS 13.5. INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 12.48 GIVEN PIPE DIAMETER{INCH) = 36.00 NUMBER OF PIPES = 1 PIPE-FLOW (CFS) = 30.22 PIPE TRAVEL TIME(MIN.) = 0.02 Tc(MIN.) = 19.23 LONGEST FLOWPATH FROM NODE 400.00 TO NODE 403.00 = 1725.30 FEET. **************************************************************************** FLOW PROCESS FROM NODE 403.00 TO NODE 403.00 IS CODE = 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ============================================================================ TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION{MIN.) 19.23 RAINFALL INTENSITY(INCH/HR) = 3.04 TOTAL STREAM'AREA(A~RES) = 12.70 PEAK FLOW RATE(CFS) AT CONFLUENCE = 30.22 **************************************************************************** FLOW PROCESS FROM NODE 403.00 TO NODE 403.00 IS CODE = 7 »»>USER SPECIFIED HYDROLOGY INFORMATION AT NODE««< ============================================================================ USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 15.93 RAIN INTENSITY(INCH/~OUR) = 3.43 TOTAL AREA (ACRES) = 3.50 TOTAL RUNOFF(CFS) = 7.54 +--------------------------------------------------------------------------+ I THE ABOVE CODE 7 REPRESENTS THE AMOUNT OF RUNOFF COLLECTED AT THIS' I NODE FROM THE EXISTING INLET LOCATED IN EL CAMINO REAL. . I +--------------------------------------------------------------------------+ **************.************************************************************** FLOW PROCESS FROM NODE 403.00 TO NODE 403.00 IS CODE = 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< I · I · I · , I i + + + + . --.--_.-__ A • __ ••• ___ -----:-______ • ___ •• ~_ • __ • or __ _ _._~ .... ~ ___ ..... .---''''_ .. '--'' ~. ---' . I i + + , i . + i + + + + .... _ ...... + ......... -+._--'''. + + i + I i . + I· 1 + -1- I + + .+ + + ;+ + + + + + ......... -----."----" ··--"···--··-·-·~+-:"IH\Im"";:-~-+.,H,*,,,,<;:""9}~ I + + RATIONAL METHOD DRAINAGE MAP FOR LA COSTA RESORT & SPA -MASTER PLAN LEGEND EXISTING CONDITION MASTBRBASINS sUJi BASlNBOUNDARY SUB BASIN AREA NODBNUMBBR 1040010 KG GRAPHIC SCALE f'o 80' ...