HomeMy WebLinkAbout2.86.35; Faraday Business Park; Offsite Hydrology Reference Material; 1984-03-15OFFSITE HYDROLOGY
RKb'KHENCE MATERIAL
84136 6-23-36
•7 -i
FARADAY BUSINESS PARK
March 15. 1984
\3
Masson & Amox, Inc.
311 E. Washington Ave,
Escondido, CA. 92025
BY:^
Frank C. Springer
83-017
TABLE OF CONTENTS
Sheet No,
Off-Site Hydrology
On-Site Hydrology
On-Site Hydraulics
Headwater Depth Chart
Hydraulic Grate Chart
Off-Site Drainage Map 1" = 200'
On-Site Drainage Map (Grading Plan)
1" = 30'
1
2
2-4
6
7
8
9
MASSON & AMii^NC. _
311 East Washington Avenue SHEET NO f- OF
ESCONDIDO. CA 92025 /> /.V<>S<^^ ^/C -S^ (714) 741-3570 CALCULATED /r-^/^C^£ <i DATE ^ CP"^
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(714) 741-3570
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MASSON & AMOX INC.
311 East Washington Avenue
ESCONDIDO. CA 92025
(714) 741-3570
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IOB
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^2
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10" J
BUREAU
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'- 2,000
- 1,000
- 800
- 600
500
- 400
- 300
'z- 200
- 100
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- 60
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_ 30
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EXAMPLE
D>42 inchai [3.5 ttat)
O-IZO cft
J4W* HW
0
(1) 2.5 B.e
(Z) Z.I 7.4
13) 2.2 7.7
"D in ttet
h 10
- e
6
- 5
- 4
- 3
- 2
-.1
-.1
'A
)F PUBLIC ROADS JAN 196 .
-.(
.3
HW
D SCALE
(I)
(21 -
(31
ENTRANCE
TYPE
Squor« tdgt with
headwoll
Groov* end with
headwall
Groove end
project ing
To ute tcole (2) or (31 pro)ec>
horiionlohy to tcole [I],then
use ttroight inclined line through
0 and 0 icelei, or rsverte ot
illutlroted.
11-67
(2)
I- 6.
(3)
- 6.
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- 5.
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^-2. --
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X
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<
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1.5
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- 1.5
- 1.0
- .9
.8
- .6
i- .5
.5
- 1.0
.9
- .8
- .7
- .6
HEADWATER DEPTH FOR
CONCRETE PIPE CULVERTS
WITH INLET CONTROL
7 of^
Chart 3
Curb.
WIDTH (B)
P=2B+Lb
A= AREA OF (XEAR OPENING IN GRATE
I TO ALLOW FOR CUDGGING DIVIDE P OR
A BY 2 BEFORE OBTAINING d.
WfTHOl/T CURB P«2(B+Lb)
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1 1 j T T 1 T T
— CURVE(B)
y USE CURVE (B) FOR 3EPTHS OVER GRATE
n uo r 1.
1 J I 1 1 1 ill 1
0^' 13^
3 4 567B9I0 l5
DISCHARGE PER SQUARE FOOT OF
EFFECTIVE CLEAR OPENING
20
3^ K.
015 O.Z 0,3 04 05 06 07 08091.0 15
DISCHARGE PER FOOT OF EFFECTIVE PERIMETER
BUREAU OF PUBLIC ROADS
REV AUG 1968
HYDRAULIC CAPACITY OF GRATE
INLET IN SUMP
12-72
7^'
REFERENCE HYDRCiLOGir
M?\NUAL TABLE,
loro^HS
84136 6-23-86
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COMPUTED TIME OF CON- J
CENTRATION- J 11^
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SAN DIEGO COUNTY
DEPARTMENT OF SPECIAL DISTRICT SERVICES
DE^GN MANUAL
APPROVED • ^m^3'3A.^
NOMOGRAPH FOR DETERMINATTON
OF TIME OF CONCENTRATION (Tc)
FOR NATURAL WATERSHEDS
DATE APPENDIX X-A
tV-A-10 Rev. 5/81
TABLE 2
RUNOFF COEFFICIENTS (RATIONAL HETHOD)
DEVELOPED AREAS (URBAN)
Land Use
Residential:
Single FamiIy
Hulti-Units
HobiIe homes
Rural (lots greater than 1/2 acre)
Commerci al (2)
80% Impervious
Industrial(2)
90% Impervious
Coefficient, C
Soi1 Group (1)
A B C D
AO .50 .55 -
M .50 .60 .70
M .50 .55 .65
.30 .35 M M
.70 .75 .80 .85
.80 .85 .90 .95
NOTES:
^^^Soil Group mans are available at the offices of the Department of Public Works.
(2)where actual conditions deviate significantly from the tabulated impervious-
ness 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 commerciai property on D soiI,group,
Actual imperviousness 50%
Tabulated imperviousness » 80%
Revised C » 50 ^ g.SS » 0.53
80
IV-A-9
APPENDIX IX-B
Rev. 5/81
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SAN DIEGO COUNTY
DEPARTMENTOF SPECIAL DISTRICT SERVICES
DESiGN MANUAL
APPROVED /-•'- '^'yy''/^*'-^ 7^33
URBAN AREAS OVERLAND TIME
OF FLOW CURVES
OAT APPENDIX X-C,
IV-A-) 2
Wa/ers/iec/
D/I//3Q
SAN DIEGO.COUNTY
DEPARTMENT OF SPECIAL DISTRICT SERVICES
DESiGN MANUAL^
APPROVED ^ ^ 3.^^^ r) rvT
COMPUTATION OF EFFECTIVE SLOPE
FOR NATURAL WATERSHEDS
DAT! APPENDIX X-a
IV-A- li
23k
RESIOENTIAL STREET
ONE SIDE ONLY
5 6 7 a 9 10
DISCHARGE (CFS.)
20 30 40 50
EXAMPLE:
Given! 0= 10 S= 2.5 7o
Chart gives: Depth = 0.4, Velocity = 4.4 f.p.s.
SAN DIEGO COUNTY
DEPARTMENT OF SPECIAL DISTRICT SERVICES
DESIGN MANUAL
APPROVED ^3^^rij^yy<4Liyi^
GUTTER AND ROADWAY
DISCHARGE-VELOCITY CHART
DATE APPENDIX X-0
IV-A-13