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4" MIN.GRASSCRETE PAVERS
2" MIN. CHOKER COURSE (3/4" CRUSHED STONE)
ON 6" MIN. CRUSHED SURFACE BASE (3/4" TO
1-1/2- CRUSHED STONE)
1' MIN NATIVE
'_
��y1j SOIL BACKFILL
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FILTER FABRIC ON TOP
AND AROUND SIDES OF
1' MIN. GEOFOAM BLOCKS
I -) GEOFOAM BLOCKS
EPS46 OR EQUAL
FILTER FABRIC
GRAVEL
4" PERF. PVC
6" MIN. GRAVEL BASE
• a
TOP OF VAULT
EL.=358.0
WATER SURFACE
DESIGN EL.=358.4
4" C.O.
W/ VALVE BOX
FRAME & COVER
& CONC. PAD
4" MIN.GRASSCRETE PAVERS
2" MIN. CHOKER COURSE (3/4" CRUSHED STONE)
ON 6" MIN. CRUSHED SURFACE BASE (3/4" TO
1-1/2- CRUSHED STONE)
\� 1' MIN NATIVE
SOIL BACKFILL
4" PVC VERT. PIPE
GEOFOAM BLOCKS
EPS46 OR EQUAL
Mommimmilm'-d-6m MIN. GRAVEL BASE
l PERF.....
4' MAX. HIGH —
MODULAR CONC.
BLOCK WALL
GEOFOAM BLOCKS
EPS46 OR EQUAL BW: 306.2(
FINISHED GRADE
24"0 SOLID LOCKING LID _ _ - - - - - - - - -
24"0 SOLID LOCKING LID W/ FRAME (TYP) _ _ - - -
W/ FRAME (TYP) (MARKED IN6 - - EXISTING GRADE
(MARKED DRAIN) _ _ RtM--304.00
RIM=304.00 - - - -
TO F VAULT i
EL.=300.5
1 A� 4" PERF. PVC
"-100-YEAR WATER SURFACE
DESIGN EL.=299.00
20.0'
WATER QUALITY
DESIGN EL.=291.00
SEDIMENT STORAGE
DESIGN EL=287.00
--4" PERF. PVCI
0.5' MIN.
\FR
.8EEBOARD
LIVE STORAGE
20.0'
4" PERF. PVC
SDR35 FOOTING
DRAIN ® S= 0.5%
MIN. (TYP.)
4.0'
DEAD STORAGE SHEET DRAIN
f (TYP.)
INV.=286.25 INV.=286.25 INV.=286.25
VAU LT 1' MIN. SEDIMENT STORAGE
I VAULT
I NV.=285.75 I NV.=285.75
6" MIN. GRAVEL AROUND
DETENTION VAULT SECTION (B—B) FOOTING DRAIN (TYP.)
- - - 12" FLOW RESTRICTOR TEE.
SEE DETAIL THIS SHEET
34LF 12" LCPE TO CB #14
(HIGH FLOW BYPASS)
it.=
12" FLOW RESTRICTOR TEE.
W/ SOLID TOP
27LF 12" LCPE
TO STORMFILTER
MANHOLE
4" PERF. PVC SDR35 - "'
FOOTING DRAIN
S= 0.5% MIN. (TYP.)
6" MIN. GRAVEL
AROUND FOOTING
DRAIN (TYP.)
SHEET DRAIN
(TYP.)
EL.=358.0
WATER SURFACE
DESIGN EL.=358.4
REMOVABLE WATER-
TIGHT COUPLING
12"
PLATE WITH ORIFICE
DIA=1.00"
5'x10' GRATED LOCKING 5'x10' GRATED LOCKING
REMOVABLE ACCESS PANEL REMOVABLE ACCESS PANEL
(MARKED DRAIN) (MARKED DRAIN)
RIM=302.00 RIM=302.00
d d
FRAME & LADDER OR FRAME & LADDER OR
STEPS OFFSET. SEE STEPS OFFSET. SEE
z NOTE 8. NOTE 8.
OVERFLOW EL=299.00 "a 100-YEAR WATER SURFACE '04 100-YEAR WATER SURFACE
DESIGN EL=299.00 DESIGN EL.=299.00
4" ELBOW
ELEV=298.2
ORIFICE DIA=1.00" °
SOLID TOP
p F L /
00
PIPE SUPPORTS (2 MIN): " d PIPE SUPPORTS (2 MIN): " d 00
0
3" X .090" ALUMINUM 1 -0 3 X .090 ALUMINUM 1 -0 (]
W/ %" STAINLESS BOLTS MIN. _ 8" SHEAR GATE W/ %" STAINLESS BOLTS MIN. 8" Cp
SHEAR GATE I
LO
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12" OUTLET PIPE o 12" OUTLET PIPE
0
IE=295.
RESTRICTOR PLATE WITH -
ORIFICE ELEV=293.65
DRILL A 1.25" HOLE IN
PLATE WELDED TO FLANGE
OR DRILLED TO CAP
e.
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d
7
12" MIN Z
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N
e a
A a �•
FLOW RESTRICTOR TEE DETAIL
NTS
WATER QUALITY
DESIGN EL.=291.00
IE=291.00 d
RESTRICTOR PLATE WITH—` e
ORIFICE ELEV=290.00
DRILL A 0.68" HOLE IN
PLATE WELDED TO FLANGE
OR DRILLED TO CAP .a
ASPHALT SERVICE DRIVEWAY
GRASSCRETE SERVICE DRIVEWAY
GEOFOAM BLOCKS
EXISTING GRADE
EPS46 OR EQUAL
FINISHED GRADE
5'x10' GRATED LOCKING
REMOVABLE ACCESS PANEL TOP OF VAULT
24" 0 SOLID LOCKING LID
W/ FRAME (TYP)
(MARKED DRAIN)-��
RIM=304.00 - -
_ - - - -
FINISHED GRADE
TRIM OR STEPPING TOP ROW
OF GEOFOAM BLOCKS TO _ - - - -
MATCH_FIINISHED-GRA1
24"0 SOLID LOCKING LID
W/ FRAME (TYP)- MARKED DRAIN)
- - - - - Rl�uf=307 U0" - - - - - -
— - -
MAX. DEPTH FROM
RIM=302.00 _ �FI -=3D0Z - - - - - - -
- - -
_
- - - - - -
FINISHED GRADE
TO VAULT SHALL
BE 20 AT
EET
ACCESSFPOINTS
4- ELBOW EL.=298.2 - - 0.5' MIN.
ORIFICE DIA.=1.00" 100 YEAR WATER SURFACE FREEBOARD
8" SHEAR GATE DESIGN EL.=299.00
8'
ORIFICE EL.=293.65
ORIFICE DIA.=1.25" LIVE STORAGE 5'x7' OPENING
WATER QUALITY 5'
�8" SHEAR GATE DESIGN EL.=291.00 7,
ORIFICE EL.=290.00 SEDIMENT STORAGE 4.0'
ORIFICE DIA.=0.68" DESIGN EL.=287.00 a DEAD STORAGE
=291.Q4
_ 1.67% 1' MIN. SEDIMENT ST
90.0, INV.=286.50
VAULT �QN M. yCAA DETENTION VAULT SECTION A —A
INV.=285.00 5 pF AS,q
1°Z., 'y F SCALE: 1" = 5'
o
,
INV.=288.50
34LF 12" LCPE
FROM CB #1
:: CITY O-
WL RENTON
Planning/Building/Public Works Dept.
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FLOW RESTRICTOR TEE DETAIL
NTS
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SURFACE WATER UTILITY FDEVELOPMENT ENGINEERING z
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