HomeMy WebLinkAboutCT 01-11; OCEAN BREEZE CINDOS; HYDROLOGY & HYDRAULIC CALCULATIONS; 1993-04-01CiO 1-\I .
HYDROLOGY & ·HYDR.ALIC
CALCULATIONS
PREPARED FOR:
GARFIELD CONDOl\1lNlUMS
3416 GARFIELD ST.
CARLSBAD, CA. 92008
PREPARED BY:
LA COSTA ENGINEERING
2382 Camino Vida Roble, Ste.L
Carlsbad, CA 92009
CT O/-tJ
VCrdf\)..) befL,2-E
(}-~1 1;)0 03 otJ
e -RUNOFF COEFFICIENTS (RATIONAL METHOD)
DEVELOPED AREAS {URBANl
Coefficient, C
. Soil Group (')
Land Use A .§ C D
Residential:
Single Family .40 .45 .50 .55
Multi-Units .45 .50 @ .70
Mobile Homes .45 .50 .55 .65
Rural (lots greater than 112 acre) .30 .35 .40 .45
Commercial (2)
80% Impervious .70 .75 .80 .85
Industrial (2)
90% Impervious .80 .. 85 .90 .95
NOTES:
III
(21
Soil Group maps are available at the offices of the Department of Public Works.
Where actual conditions deviate significantly from the tabulated imperviousness
values of 80% or 90%, the values given for coefficient C, may be revised by
·multiplying 80% or 90% by the ratio of actual imperviousness to the tabulated
imperviousness. However, in no case shall the final coefficient be less than 0..50.
For example: Consider commercial property on D soil group .
. Actual imperviousness = 50%
Tabulated imperviousness = 80%
Revised C = 50 x 0.85 = 0.53'
80
IV-A-9
APPENDIX IX
Updated 4/93
--=--:-.; •• _. ______ • ___ __ .~ .=-~~....;:' '_H~' ~
COUNTY OF SAN DIEGO
DEPARTMENT OF SANITATION &
FLOOD CONTROL
45 1
'.'
30'
15 '
:330
10-YEAR 6-1'IOUR PRECIPITATIO~J
45' I 1···, ..... ::tm:\,.hEGO I --QLIF"''A-;d-r~'l~'''h'I"\-r7'J-I-+-k.lr~ -_ .. _--_ .... _-------_ .. _--... _" ...... _ ... .
.... .... • ~ ,
~
',.e
u..S. DEPARTM
NATIONAL OCEANIC A~D
SPECIAL STUDIES BRANCH. OFFICE OF I
by
RIC ADMINISTRA'I10N
ROLOGY. :-:A.TIONAL WEATHER SERVICE
. 30' I . I I . _. . . I I .
n8° 45' 30' 15 1 1170 45 1 30 e 15' !l6-
w
/'
COUNTY OF' SAn DIEGO ,
DEPARTl'fENT OF SANITATIon s-
. FLOOD CONTROL
4S I =r>..... 1:.'t)(I:S~.l'"
\ lO-YEAtl 24-mUlR PRECIPITATION
I
'-20./ ISOPLUVIAlS OF 10-YEAR ·24 .. BOUR
30 ' '1 " \-o\--'li I , ......
. , .
15'~'I ____ ~~~ ____ ~
.-
33°
45' I . ~ I
u.s, DEPARTME. T OF COMMERGE . prep~red by '1
NATIONAL OCEANIC AND AT .to!>J>IIF.RIC AP~IISISTRATION
SPECIAL STUDIES DRA:-tCII, OI-"fICE 01-" I DIWLOOY. NATIONAL WEATHER SERVIce ,.
t-c
~ J ~ I
o
30' I'I--~~----~-----
118° 45' 30' 15' 1170 1.5 ' 30 D
~
15 ' VJ6°
~#""U"""h"o"'" , -, .. n .---·-·----.. ---.. ''IN·TEN·SITY-DUMTION DESIGN CHART
....
:l
;?
-t~t .·I-t-';o-+-.-......-J-J-I.t ... -+ ...... ,. -l-t-H-I:-:I-'-'''''*-
--I-++++-I-H-H-I-H-H·· ~.; fEm=WfftflmOOmijlllll.ltmllll'I!lIlI'WM mmmtttlltltlllllill
1111.....,j-j-H-H+I-I-H-H,··,-,--·~~·····
40 50' 1 20 30 2
Hours
3 4 5 6-
Minutes " , ,
Directions for Ap~lication:
1) From precipitation fllaps detennine 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 th
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. (Not nrrlicable to Desert) e Pl~t 6 hr. precipitation on the right side
of the chart.
Draw a line through the point parallel to the plotted lines.
10 yr.'
* 3.0 , P6 =
P24
/. 1 in. *p -Adj us.ted 6-_~
10 min. 3.) t = __
c -e .a i. nj hr. 4) I = •
51 r.
*Not Applicable to Deaert·Region
., .
APPENDIX XI
IV-A-14
Revised 1/85
~
1950 KELLOGG AVE.
CARLSBAD, CALIFORNIA 92008
TEL 760·931·0290 FAX 438·5251
EMAIL: icen!!r@connectnet.com
CIVIL. STRUCTURAL
MECHANICAL. PETROLEUM
CUENT ______ -----.:e ___________ _
JOB ______________________ _
CALCULATED By _________ DATE __ '---____ _
CHECKED By _________ DATE ______ --:-_
SCALE SHEET NO <b OF _. __
1950 KELLOGG AVE.
CARLSBAD. CALIFORNIA 92008
TEL 760-931-0290 FAX 438-5251
EMAIL: Icen!!r@connectnet.com
CIVIL. STRUCTURAL
MECHANICAL. PETROLEUM
CLlENT _______ ~e~-----------
JOB ______________ ~ ____ __
CALCULATED By _________ DATE ______ _
CHECKED By _________ DATE. ______ -,--
SCALE ___________ SHEETNO 1 OF __ -,--
\
s; ~ It:> (\jler-DVb ~frb ~ e]A..oIfk,\. M At ~ ftr 3 ~ k~ ft3 {2.~ \'Il h> . e-j>r5'J .\l...~Fwv'IJ,
~G \<; vl'J'tl-"\ skl4\ It:., Ie, INt,IILoS'fj:(~·,
Circular Channel Analysis & Design
Solved with Manning's Equation
Open Channel -Uniform flow
Worksheet Name: GARFIELD TM
Comment: 411 PVC FLOW TO VAULT FROM TRENCH DRAIN
Solve For Actual Depth
Given Input Data:
Diameter ......... .
Slope ............ .
Manning's n ...... .
Discharge ........ .
Computed Results:
Depth ............ .
Velocity ......... .
Flow Area ........ .
Critical Depth ... .
Critical Slope ... .
Percent Full ..... .
Full Capacity .... .
QMAX @.94D ....... .
Froude Number .... .
0.33 ft
0.0200 ft/ft
0.012
0.14 cfs
0.16 ft
3.31 fps
0.04 sf
0.21 ft
0.0089 ft/ft
49.60 %
0.28 cfs
0.31 cfs
1.63 (flow is Supercritical)
Open Channel Flow Module, Version 3.12 (c) 1990
Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708
Circular Channel Analysis & Design
Solved with Manning's Equation
Open Channel -Uniform flow
Worksheet Name: GARFIELD REAR YARD
Comment: 4" PVC FLOW AT REAR YARD
Solve For Actual Depth
Given Input Data:
Diameter ......... .
Slope ............ .
Manning's n ...... .
Discharge ........ .
Computed Results:
Depth ............ .
Velocity ......... .
Flow Area ........ .
Critical Depth ... .
Critical Slope .. ,.
Percent Full ..... .
Full Capacity .... .
QMAX @.94D ....... .
Froude Number .... .
0.33 ft
0.0100 ft/ft
0.012
0.19 cfs
0.26 ft
2.67 fps
0.07 sf
0.25 ft
0.0109 ft/ft
77.54 %
0.20 cfs
0.22 cfs
0.93 (flow is Subcritical)
Open Channel Flow Module, Version 3.12 (c) 1990
Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708
t'L
t· EX. fENCE
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RET.WALL
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SOURCE OF 'TOPOGRAPHY
TOPOGiRAPJft SHOWN ON THE5E PLANS HA5 GENERATED BY 5TO
~ METHODS FROM INFORMATION GATHERED ON DEC. 17.
./
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HV\-P G. PROJECT DATA-
RESIDENTIAL-
~ .~
C<;-
./
7. UTILITIES-W
SI
El
TE
8. SCHOOLS-C.
q. THE SEWER SY~
AND RICHT -OF-
CONSTRUCTED I
SPECifiCATIONS
THE SAN DIECO
CONSTRUCnON
10. DATE OF PREPI
11. CRADINC-
4' PCC
SIDEWALK
A" e
EXI! ON
fOSSIL flL TfR FLO-GAR
(TRENCH DRAIN)
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