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A PORTION OF THE SE 1/4, SW 1/4, SECTION 32, TOWNSHIP 24 N., RANGE 5 EAST, W.M., CITY OF RENTON, WASHINGTON
VAULT SIZING:
WATER QUALITY VOLUME REQUIRED: 1,880 CU. FEET
WATER QUALITY VOLUME AS -BUILT: 2,288 CU. FEET
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OFFE ENGINEERS
13932 SOUTHEAST 159TH PLACE
RENTON, WASHINGTON 98058
PHONE: 425-260-3412
CONTACT: DARRELL OFFE, P.E.
wasH0F�.�,
27460
FSS��NAL '��
05/09/2016
LANKTREE SURVEYING
DESIGNED:
D.L. OFFE, P.E.
DRAWN:
D.L. OFFE, P.E.
CHECKED:
NO. REVISION BY DATE APPR APPROVED:
SCALE
ONE INCH
AT FULL SCALE
IF NOT ONE INCH
SCALE ACCORDINGLY
VERTICAL: NAVD 1988
HORIZONTAL: NAD 1983/1991
DATU M
EXISTING UTILITY LOCATIONS SHOWN HEREON ARE
APPROXIMATE ONLY. IT SHALL BE THE CONTRACTOR'S
RESPONSIBILITY TO DETERMINE THE EXACT VERTICAL AND
HORIZONTAL LOCATION OF ALL EXISTING UNDERGROUND
UTILIITES 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: 811
B
ACCESS COVER OR DOORS REOUIRED.
LADDER A
S' x 1D' GRATE OVER SECOND CELL
IMAY BE PROVIDED BY A GRATED
WETPOOL F % MY ALCM DOOR OR PANEL)
WIDTH
A
'Y•SHAPED
BOTTOM
REL41WABLF
BAFFLE OR WALL
SEE NOTE
OUTLET
WETPOOL LENGTH OPEN PIPE FOR WETVAVLTONLY-
SEE DEIEI "ON VAULT FOR
FRAME, GRATE AI�i7 PLAN VIEW COMBINED WATER QUAUTYI
LOCIUNG COVER MARKED NIT8 I DETENTION VAULT OUTLET
•DRAI N (IYP•) B
• $IIE TO MEET CONVEYANCE
DETE NTION OFTIONAL REQUIREJetENTS 1)
VTLADDER J
1 WD DESIGN WS
)NELT REMOVABLE
BAFFLE Ll
NOTE: CAPACI Y OF OUTLET
FIRST CELL &ZED FOR 1' WETPOOL PIPE DESIGNED TO PEAK FLOW
25%TO=%OF
WETPOOL. VOLUME DEPTH V FOR WQ VAULTS 2' FOR CONVEYANCE
B MAX. FOR COMBINED W.Q.
3,,� AM DETENTION VAULTS
2' min.
GRAVITY DRAIN (IF GRADE ALLOWS) PLACE
AS LOW AS GRADE ALLOWS BUT MUST
- BE C MIN. ABOVE THE BASE ELEVATION
OF VAULT WALLS OR ABOVE SEDBAENT
BOTTOM SLOPE GZ%-2% STORAGE AREA
TOWARD INLET END
AVERAGE SEDIMENT STORAGE SECTION A -A
1' MIN. (FIRST CELL) NTS BOTTOM ELOPE Q.S7IL TOWARDS OUTLET
END OF SECOND CELL (RECOMMENDED)
ACCESS DOORS OR REMOVABLE PANEL
wa M%GN WB
r MIN.
f' M
AVERAGE 1' SEDIM ENT STO RAGE
(FIRST CELL)
AVERAGE I'SEDIMENTSTORAGE
(FIRST CELL)
SECTION &H
NOTE- INTO
1.1. THE VAULT SHALL BE SEPARATED INTO TWO CELLS BY A WALL OR A REMOVABLE BAFFLE. IF A WALL OR NON REMOVABLE BAFFLE IS
USED, A 5-FOOT C x 10-FOOT REMOVABLE REMOVABLE MAINTENANCE ACCESS MOST BE PROVIDED FOR BOTH CELLS.
1.2. FOR VAULTS UNDER ROADWAYS, THE REMOVABLE PANEL MUST BE LOCATED OUTSIDE THE TRAVEL LANES.
ALTERNATIVELY, MULTIPLE STANDARD LOCKING MANHOLE COVERS MAY BE PROVIDED. SPACING OF MANHOLE
COVERS SHALL BE 12 FEET, MEASURED ON CENTER, TO FACILITATE REMOVAL OF SEDIMENT. LADDERS AND
HAND —HOLDS NEED ONLY BE PROVIDED AT THE OUTLET PIPE AND INLET PIPE,
PUBLIC WORKS WETVAULT STD. PIAN - 249•20
* ±,� + DEPARTMENT
MARCH 2008
CITY OF
RENTON
Planning/Building/Public Works Dept.
GRAPHIC SCALE
0 5 10 20
1 inch = 10 feet
RECOMMENDED FOR APPROVAL
By: Date:
By: Date:
By: Date:
By: Date:
AS -BUILT 05/09/2016
NANTUCKET SHORT PLAT
NANTUCKET AVENUE, LLC
WATER QUALITY TREATMENT FACILITY
2820 PARK AVENUE NORTH
05/09/2016 F
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R-383024