HomeMy WebLinkAbout242.10NOTES:
1.EXTEND SIDES INTO SLOPE. HEIGHT OF SIDE WALL AND WING WALLS MUST BE SUFFICIENT TO
HANDLE THE 100-YEAR FLOW OR THE HIGHEST FLOW ENTERING THE FACILITY.
2.CONCRETE FOR SUMP BOX MAY BE EITHER CAST-IN-PLACE OR PRE-CAST, BUT THE BOTTOM OF
THE SUMP SHALL BE REINFORCED WITH WIRE MESH FOR CAST-IN-PLACE SUMPS.
3.SUMP BOXES SHALL BE PLACED OVER BASES THAT CONSIST OF 4 INCHES OF CRUSHED ROCK,
5/8-INCH MINUS TO ENSURE THAT THE SUMP REMAINS LEVEL.
4.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
EXAMPLE OF A CONCRETE SUMP FLOW
SPREADER USED WITH A BIOFILTRATION SWALE
(MAY BE USED WITH OTHER WATER QUALITY FACILITIES).
PLAN
SWALE BOTTOM
SIDE WITH WING WALLS
(TYP.), SEE NOTE 1
RIPRAP AS SHOWN ON PLANS (TYP.)
INLET PIPE
24" MIN.
8" MIN.
2" MIN. CLEARANCE
WING WALL OUTLINE
CONCRETE
SUMP (4" WALL
THICKNESS)
SECTION A
2" MIN.
SECTION B
A
BCONCRETE SUMP
INLET PIPE
RIPRAP AS SHOWN ON PLANS (TYP.)
RIPRAP AS SHOWN ON PLANS (TYP.)
FLOW SPREADER - OPTION B
CONCRETE SUMP BOX
STD. PLAN - 242.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
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9/28/2018 | 9:45 AM PDT