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6" INLET, IE=415.0
ROOF DOWNSPOUT
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8" INLET, IE =415.0 z
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GRADE TO DRAIN
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0.5%-2%
20.0' — — —
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CELL 1
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ACCESS RISER
0
8" INLET, IE=415.0
0
PLANd
CELL 1
31.0'
ACCESS RISER
1 8" INLET, IE =415.0 o
9 25' 4' ACTIVE STORAGE
4' DEAD STORAGE
AVOID CUTTING UNDERGROUND
UTILITY LINES. IT'S COSTLY.
Call
before you
D;g
1-800-424-5555
UNDERGROUND SERVICE (USA)
NOTE:
EXISTING UTILITY LOCATIONS SHOWN HEREON ARE APPROXIMATE ONLY.'i
IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO DETERMINE THE
EXACT VERTICAL AND HORIZONTAL LOCATION OF ALL EXISTING UNDER-1'
GROUND UTILITIES PRIOR TO COMMENCING CONSTRUCTION. NO
REPRESENTATION IS MADE THAT ALL EXISTING UTILITIES ARE SHOWN
HEREON. THE ENGINEER ASSUMES NO RESPONSIBILITY FOR UTILITIES
NOT SHOWN OR UTILITIES NOT SHOWN IN THEIR PROPER LOCATION.
CALL BEFORE YOU DIG: 1-800-424-5555
GRADE TO DRAIN 0.5%-2%
A PORTION OF THE NE 1/4 SECTION 9, TOWNSHIP 23 NORTH, RANGE 5 EAST, W.M.
KING COUNTY, RENTON, WA.
5'X12' ACCESS GRATE
GRADE TO DRAIN
0.5%-2%
CELL 2
REMOVABLE BAFFLE WALL
o _6" INLET, IE=415.0
CELL 2
57.0'
5'X12' ACCESS GRATE
100-YR WS = 416.10'
8" INLET, IE =412.7
0.5%-2% GRADE TO DRAIN
ELEVATION
PER KCSWDM SECTION 6.4.2.2 SEDIMENT DEPTH SHALL BE 9" FOR 20' WIDE WETVAULT
PER KCSWDM SECTION 5.3.3 FREEBOARD DEPTH SHALL BE 6" FOR DETENTION VAULT
WETVAULT/DETENTION VAULT DETAILS
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SEE STRUCTURAL PLANS PREPARED BY COLLONS & SMITH STRUCTURAL ENGINEERS
CITY OF RENTON
- -,proved hv- /
' Date:
Approved by: Date:
Approved by: Date:
Approved by:
Date:
12" OUTLET, IE=412.10'
8" INLET, IE =412.7
20.0' --
.25'
57.. MI-- N5 7, MIN=-
6
STORM REDESIGN
06/04/08
5
M YLARS
02/11 /08
4
WQ FACILITY REVISION
01/30/08
3
CITY OF RENTON COMMENTS
01/23/08
2
CITY OF RENTON COMMENTS
11/27/07
N0,
REVISION
BY
DATE
APPR
SECTION
100-YR WS = 416.10'
NQ WS = 412.10'
SURVEYED:
SCALE:
TRIAD ASSOCIATES
SHOWN
DESIGNED:
JAW
DRAWN:
HR
ONE INCH
CHECKED:
JAW
AT FULL SCALE
IF NOT ONE INCH
APPROVED.
SCALE ACCORDINGLY
VERTICAL: NAVD 1988
HORIZONTAL: NAD 1983/1991
DATU M
5'X12' ACCESS RISER
12" 0 STAND
SHEAR GATE
8" MIN. DIAM
RESTRICTOR PLATE
WITH ORIFICE
ORIFICE=2-3/16
SECTION
NTS
DETAIL - FLOW CON T ROL
m
CITY OF
ML
RENTON
Planning/Building/Public Works Dept.
t14.52, 6" ELBOW WITH
/2.0 ORIFICE
S 3'xO.90gs BOLTED
" IN WALL @ MAX
N. ONE SUPPORT
✓ANIZED STEEL
EPS
RENTON BIBLE CHURCH
973 UNION AVE
STORM DRAINAGE
NOTES AND DETAILS
36958
ISTFrt wW
�SSI01XVAL V,
IEXPIRES 8-10- ()`1 j
DATE:
06/09/08
FIELDBOOK:
PAGE:
DRAWING NO:
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