1992-3038 G Street Address
j -�
Category Serial #
Name Description
Plan ck. # Year
recdescv
• Civil Engineering
• Land Planning °
• Structural
APRIL 15, 1992 1 OF �j 4
HYDROLOGY STUDY
FOR
THE GROSS RESIDENCE i
DESCRIPTION•
GRADING PLAN FOR S.F.R.
WISHBONE WAY, OLIVENHAIN
PARCEL 1 OF P.M. 14598 4
APN 264 - 221 -44 ���• SE-40 Sn '. \.
OWNERLPERMITTEE • ` C 39726
Exp. 12- 3 1 1 - 93 ;
PAULINE & MARC GROSS s clViL
6125 LAKEWOOD STREET �\ ` F e A�
SAN DIEGO, CA 92122
619 - 453 -1967
ENGINEER•
LOGAN ENGINEERING
120 BIRMINGHAM DRIVE, ST 110
CARDIFF, CA 92007
619- 942 -8474
i
l?'7
R. E. 3972
E DATE 12 -31 -93
i
120 Birmingham Dr., Suite 110 Cardiff -by- the -Sea, CA 92007 • 619- 942 -8474
X5164 ` fzoCEDo,2t MA1u
— `5 � ��. ►� J 12�R� 2�,i��IT
Ac
AJ4- (,-/,51 S
.,- COECK
too
Diameter (inches) 24 Mannings n ...-
.035
Slope (ft /ft) ....... 0.0200
Q (cfs) ........... 4.00
depth (ft) 0.80 depth /diameter ...
••• 0.40
Velocity (fps) ...... 3.41 Velocity head ....
0.18
Area (Sq. Ft.) 1.17
Critical Depth 0.70
Critical Slope ... 0.0325
Critical Velocity ... 4.07 Froude Number
• -• 0.78
/O M Ay-
Diameter (inches) .,, 24
Mannin .035
gs n .......
Slope (ft /ft) ....... 0.0500
Q (cfs) ...........
depth (ft) „ • „ 4.00
0.63 depth /diameter
Velocit -0.31
Y (fps) .... -• 4.75 Velocity head ...,
0.35
Area (Sq. Ft.) 0.84
Critical Depth ...... 0.70
Critical Slope . -. 0.0325
Critical Velocity ... 4.07
Froude Number . ... 1.24 I
• � - - De�-TAA L uJI 46 2
43W I46 tz.(P IZA-P
1 TABLE 2 .
RUNOFF COEFFICIENTS (RATIONAL METHOD)
DEVELOPED AREAS (URBAN) Coeffic C
Soil Group (1) L
Land Use _
Residential:
- Single Family .40 .45 .50 .55
Multi -Units .45 .50 .60 .70
Mobile homes .45 ..50 .055 ..65
Rural (lots g reater than 112 acre) _ .30 .35 .40 .45
Co_ mmercial ( n .70 .75 .80 .85
80% Impervious
Industrial ( . .80 .85 .90 .95
90% Impervious '
NOTES:
(l) Soil , Group mans are available at the offices of the Department of Public Works.
(2 )Where actual conditions. deviate significantly from the tabulated impervious-
mess 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 0 soil. group.
Actual imperviousness scr/.
Tabulated Imperviousness 80%
Revised C 80 x 0.85 0.53 -• - -
IV-A-9
APPENDIX IX -B
Rev. S /81
H EQIlAT /ON
Fief Tc . C / /.9L . 1. 36 5
5 10010 Tc • Tune of tonccn /rsz�'ion
- 4000 � ' Leny /h of watershed
' H • D /ffer�nce in a %vafivn a/�9
3 101010 ef/ccfire s /ox /ine lSee AppendiX X -B) r
L
il1i /mss F��f iS/ar�rs Mii�ufea
2 101010 4 240
3 /BD
/0010 /0
9100 "
800 2 /20
700
i00 \ /DD
SOD S 90
4 � .
?OD \ 2
\ QD
�40D0 210
3000 /6
So O.S \ /a
40 2000 \ \\ 12
/BDO
NOTE /600 /o
IF OR NATURAL FC-DS 12010 a
ZO ' ADD TEN M /DOD 7
COMPUTED TIME OF CON- 90o
CENTRATION_ O
��'- -_ — 7100
600 3 �
/D SOD.
' 4010
5
200
H �
• c
SAN 01 EGO COUNTY T
NOMOGRAPH FOR DETERMINATION
DEPARTMENT OF SPECIAL DISTRICT SERVICES OF TIME OF CONCENTRATION (Tc)
DESIGN MANUAL FOR NATURAL WATERSHEDS
APPROVED 'S • // ii DATE � Z//
, APPENDIX X -A
I 10 Rev. 5/81
•°- C t O L V
C ` O �►- O tU #
Ln
u v v ' + o >
tan .n Y .+ >
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a v.c " ° �. 4' c v
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L
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C L ty /o 4m N N w .0 4 U H
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a-a N +> Cu p 7 q
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U ti N H p G +/ +4 + d O p C F - •v �r N C>. Q 4J b-
i r-
f'- tom,
n n a n n n n n
Cn to Cm Cn -Cr
Cj _
6 -Hour Precipitation (inches)
In o to o to O to o
N
M N
N x _— --
Z ' H •� •� j .. fib` . �� _te , ._y. _ � 1 1
Z _ v i. C - ti--:_
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.: •- � j �- 1 1 1 1 I -1 1' 1 1 :Ili; "sll ti f I 1 1 i O
d ..t
M ` A N �••
(-jnoq /tag3ui) c:tjsuajur APPENDIX XI IV -A -14
f ..l
60 ILI
Ln
Ca
ILD
tat
IA—
CD
Ar
� 0 LC
C C < O
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LZJ
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r ' N
y f`^'7 h x 4c x
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y O �
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u
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till MAt
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ow
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cm td
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cm
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\1W E IS
14,
';t4 ("C' CD
C::) ED CD
'ID C C V'
1 1 70 13'30" 117 13'15" 1 170 13'00" 1170 12'45" 1 IT� 12'30"
7 _
334N K
LEGEND-
N
L
Horizontal Control Monument
'hird Order
Vert cal Control Monument
Se( ood Order or Better
Hor zontal Control Monument
iN
-ond O or Better
Se(
Vertical Control Monument
..........
11)ird Order
.........
4
Hor zontal Control Monument
Second Orde
,r or Better -7777::1,
3 3 0 0 4'4 5
4 7-'-,
Hor zontal Control Monument & Bench Mark
Set.otid Order or Better
Hor zontal Control Monument
Third Order
Hor zontal Control Monument & Bench Mark
Third Orde r
Bench Mark
Second Order or Better
Vertical Control Monument
..........
�.X38 0
Third Order Propert Corner Found Coord nated
(Calif orma Coordinate S Zone 6)
7—.
0.1
lo�
lo s Found Section, Grant or
-4- —
11 S
Subd v's on Corner
0
Photo Nadir Po nt
Geo Tick
77777�7��
4
BOUNDARIES IN ORDER OF PRECEDENCE (Land L nes Shown are Approx1*1i)ate)
...... ..
025 National
Name .025"
County
77, 77
.0 15 C ty
332N
3z
Name w1thin Bdry,
Reservation
0 15
Name within Bdry. 33004'30"
National, State or Count Park
0 15 within Bdry
Name
and Grant
15
T 2 S
TnVVnship, Ran or Section
T3S �015"
PREPARED UNDER THE
DIRECTION
of
DEPARTMENT OF PUBLIC VVORKS
e g o
County o f S a n D
CONTROL DATA FURNISHED
by A
SURVEY SECTION
Department o Public Works
HORIZONTAL CONTROL BASED
Of? .75
0 . . . ....
VERTICAL CONTROL BASED
00
'I !F
ORTHOPHOTO IMAGE PREPARED froto
APRIL 19, 1982 b y
4C .4.
'AN-_0 AERIAL SURVEYS, INC. TOPOGRAPHY COMPILED
by
OFF
froti?
A PH! 19) 3 3 A 4'1
19 8
by r
SAN-L-0 AERIAL SURVEYS, INC.
FINAL MAP PREPARED
by
MAPPING SECTION -nent of Puhllc Works
Departi
330N 17 0 1 E 1703E 1705E 1707E
This Mal) Cotol)lies with SCALE 1: 2400 1 200')
INbEX TO ADJOINING SHEETS
NATIONAL MAP ACCURACY STANDARDS SAN D 1 C
INDEX CONTOUR INTERVAL� 25 FEET
CONTOUR INTERVAL.- 5 FE ET 334-1695 334-1701 334-1707
CALI RNIA
600 800 1000
200 400
200 0
TWO THOUSAND FOOT CALIFORNIA RECTANGULAR GRID (ZONE V0
9) C( 9
(Feet) 707
330-1695 330-1701 330-1
PM T I F) 1) 1 (1 1
rs)
(Me te
100 0 100 200 300 THE RECTANGULAR COORDINATE VALUES ARE SHOWN ON THE SOUTH AND WEST MARGINS
326-1695 326-1 701 326-1707
-ARGINS SHEET NOO 330-1701
THE GEOGRAPHIC VALUES ARE SHOWN ON THE NORTH AND EAST NA