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SEDCAD 4 for Windows <br />46 <br />Dead Space: 20.00 <br />*No sediment capacity defined <br />Drop Inlet <br />Riser <br />Riser Height <br />Barrel <br />Barrel Barrel Slope <br />Spillway Elev <br />Diameter (ft) <br />Diameter Length (ft) ( %) <br />Manning's n (ft) <br />(in) <br />(in) <br />Trap Efficiency: <br />36.00 2.00 <br />36.00 100.00 2.00 <br />0.0150 6,653.80 <br />Emergency SpillwaX <br />Spillway Elev Crest Length Left Right Bottom <br />(ft) Sideslope Sideslope Width (ft) <br />6,655.00 25.00 3.00:1 3.00:1 10.00 <br />Pond Results: <br />Peak Elevation: <br />6,654.45 ft <br />H'graph Detention Time: <br />0.71 hrs <br />Pond Model: <br />CSTRS <br />Dewater Time: <br />0.84 days <br />Trap Efficiency: <br />92.75% <br />Dewatering time is calculated from peak stage to lowest spillway <br />Elevation - Capacity - Discharge Table <br />Elevation <br />Area <br />(ac) <br />Capacity <br />(ac -ft) <br />Discharge Dewater <br />Time <br />(cfs) (hrs) <br />6,646.40 <br />0.710 <br />0.000 <br />0.000 Top of Sed. Storage <br />6,646.90 <br />0.727 <br />0.359 <br />0.000 <br />6,647.00 <br />0.730 <br />0.432 <br />0.000 <br />6,647.40 <br />0.747 <br />0.727 <br />0.000 <br />6,647.90 <br />0.768 <br />1.106 <br />0.000 <br />6,648.40 <br />0.789 <br />1.495 <br />0.000 <br />6,648.90 <br />0.811 <br />1.895 <br />0.000 <br />6,649.40 <br />0.833 <br />2.306 <br />0.000 <br />6,649.90 <br />0.856 <br />2.729 <br />0.000 <br />6,650.00 <br />0.860 <br />2.814 <br />0.000 <br />6,650.40 <br />0.878 <br />3.162 <br />0.000 <br />6,650.90 <br />0.901 <br />3.607 <br />0.000 <br />6,651.40 <br />0.924 <br />4.063 <br />0.000 <br />6,651.90 <br />0.947 <br />4.531 <br />0.000 <br />6,652.40 <br />0.971 <br />5.010 <br />0.000 <br />6,652.90 <br />0.995 <br />5.502 <br />0.000 <br />Filename: Lower Sump 10yr,24hr.sc4 Printed 02 -04 -2011 <br />