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HomeMy WebLinkAbout242.00Y Q } m Z Example of anchored plate o used with a sand filter* (may also be used with other water quality facilities). V -NOTCHED OR LEVEL PLATE SPREADER ANCHOR POSTS SPACED 6' O.C. OR AT EACH END IF WIDTH <6' *SAND FILTER MAY USE OTHER SPREADING OPTIONS. 2" MIN. INLET PIPE A EXTEND INTO SLOPE TO PROTECT FROM THE 100 YEAR FLOW OR THE HIGHEST FLOW ENTERING i WATER QUALITY FACILITY. Alternative Design Catch basin recommended for higher flow situations (generally for inflow velocities of 5 fps or greater for 100 year storm). ROCK RIP RAP sand layer 2" MIN. gravel layer (MIN.) r� existing grade INLET PIPE (MI SECTION A -A NTS LEVEL SPREADER PLATE BOLTED TO ANCHOR POST 2' (MIN.) EMBEDDED INTO EXISTING GROUND NOTES: 1. FLOW SPREADER PLATES MAYBE MADE OF EITHER WOOD, METAL, FIBERGLASS REINFORCED PLASTIC, OR OTHER DURABLE MATERIAL. IF WOOD, PRESSURE TREATED 4 BY 10 -INCH LUMBER OR LANDSCAPE TIMBERS ARE ACCEPTABLE. 2. ANCHOR POST SHALL BE 4 -INCHES SQUARE CONCRETE, TUBULAR STAINLESS STEEL, OR OTHER MATERIAL RESISTANCE TO DECAY . I 'y STD. PLAN - 242.00 + + PUBLIC WORKS FLOW SPREADER - OPTION A �NTo� DEPARTMENT ANCHORED PLATE MARCH 2008