HomeMy WebLinkAbout242.00ALTERNATIVE DESIGN
CATCH BASIN RECOMMENDED FOR
HIGHER FLOW SITUATIONS (GENERALLY
FOR INFLOW VELOCITIES OF 5 FPS OR
GREATER FOR 100 YEAR STORM).
*SAND FILTER MAY USE
OTHER SPREADING OPTIONS.
EXAMPLE OF ANCHORED PLATE
USED WITH A SAND FILTER*
(MAY ALSO BE USED WITH OTHER
WATER QUALITY FACILITIES).
PLAN
SECTION A
SAND BED
NOTES:
1.FLOW SPREADER PLATES MAY BE MADE OF EITHER METAL, FIBERGLASS
REINFORCED PLASTIC, RECYCLED PLASTIC, OR OTHER DURABLE MATERIAL.
WOOD IS NOT ALLOWED.
2.ANCHOR POST SHALL BE 4-INCH SQUARE CONCRETE, TUBULAR STAINLESS
STEEL, OR OTHER MATERIAL RESISTANT TO DECAY. WOOD IS NOT ALLOWED.
3.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
INLET PIPE
V-NOTCHED OR LEVEL
PLATE SPREADER
EXTEND INTO SLOPE TO PROTECT
FROM THE 100-YEAR FLOW OR
THE HIGHEST FLOW ENTERING
WATER QUALITY FACILITY
RIPRAP AS SHOWN ON PLANS (TYP.)
POND SIDE SLOPES (TYP.)
SAND LAYER
GRAVEL LAYER
EXISTING GRADE
2" MIN.
8"
MIN.
2'
MIN.2' MIN. EMBEDDED
INTO EXISTING GROUND
INLET PIPE2" MIN,
EDGE OF SAND
ANCHOR POSTS SPACED 6' O.C.
OR AT EACH END IF WIDTH < 6'A2" MIN. THICK LEVEL SPREADER PLATE BOLTED TO ANCHOR POST
RIPRAP AS SHOWN ON PLANS (TYP.)
FLOW SPREADER - OPTION A
ANCHORED PLATE
STD. PLAN - 242.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT