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SEDCAD 4 for Windows <br /> <br />Structure #1 (Null) <br />Scoria Pile Area <br />Structure #2 (Pond) <br />Sediment Trap <br />Pond Inputs: <br />Structure Detai/: <br />Initial Pool Elev: 6,897.50 <br />Initial Pool: 0.04 ac-ft <br />*Sediment Storage: 0.01 ac-ft <br />Dead Space: 20.00 <br />*Sedrment capacity based on Average Annua! R of 30.0 for 5 year(s) <br />Emeroencv Soillwa <br />Spillway Elev Crest Length Left Right Bottom <br />(ft) Sideslope Sideslope Width (ft) <br />6,897.50 8.00 2.00:1 2.00:1 5.00 <br />Pond Results: <br />Peak Elevation: 6,897.65 <br />H'graph Detention Tme; 0.07 his <br />Pand Model: CSTRS <br />Dewater Time: 0.51 days <br />Trap Efficiency: 65.59 <br />Dewateiing time is calcu/ated from peak stage to lowest spillway <br />Elevation-Capacity-DischarcLe Table <br />• <br /> <br />Elevation Area <br /> <br />(ec) Capacity <br /> <br />(ac-ft) Discharge <br /> <br />(ds) Dewater <br />Time <br />(ham) <br />6,894.88 0,010 0.000 0.000 Top of Sed. Storage <br />6,895.00 0.010 0.001 0.000 <br />6,895.50 0,011 0.007 0.000 <br />6,896.00 0,013 0.013 0.000 <br />6,896.50 0.015 0.020 0.000 <br />6,897.00 0.018 0.028 0.000 <br />6,897.50 0.020 0.038 0.000 Spillway #1 <br />6,897.65 0.020 0.041 0.555 12.20 Peak Stage <br />Filename: Scoria Pile w_ RevisedTrap.sc4 Printed OS-04-2005 <br />