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SEDCAD 4 for Windows <br />CoDY~9h11998 Pamela J. Schwab <br />Civil Sofhvare Design <br />• <br />Structure #3 (Null <br />Structure #1 (Pond1 <br />Pond Inputs: <br />Structure Detai/; <br />Initial Pool Elev: 7,372.20 <br />Initial Pool: 1.25 ac-ft <br />'Sediment Storage: 0.46 ac-R <br />Dead Space: 20.00 <br />*Sediment capacity based on Average Annual R of 50.0 for 3 year(s) <br />Perforated Riser <br />Riser Riser Height Barcel gavel Barrel Slope Number of <br />' <br />Diameter (R) Diameter Length (R) (°~) Manning <br />s n Spillway Elev Holes per <br />(in) (in) Elev <br />12.00 5.83 12.00 100.00 2.00 0.0240 7,375.50 4 <br />Pond Results: <br />I <br />L <br />Peak Elevation: 7,375.49 <br />H'graph Detention Time: 10.41 hrs <br />Pond Model: CS~RS <br />Dewater Time: 3.01 days <br />Trap Efficiency: 88.10 <br />Dewatering time is calculated from peak stage to lowest spillway <br />Elevation-Capacity-Discharge Table <br />• <br /> <br />Elevation Area <br /> <br />(ac) Capacity <br /> <br />(ac-ft) Discharge <br /> <br />(cfs) Dewater <br />Time <br />(hrs) <br />7,370.65 0.733 0.000 0.000 Top of Sed. Storage <br />7,370.70 0.737 0.034 0.000 <br />7,370.80 0.747 0.108 0.000 <br />7,370.90 0.757 0.183 0.000 <br />7,371.00 0.767 0.259 0.000 <br />7,371.10 0.777 0.336 0.000 <br />7,371.20 0.787 0.415 0.000 <br />7,371.30 0.797 0.494 0.000 <br />7,371.40 0.807 0.574 0.000 <br />7,371.50 0.818 0.655 0.000 <br />7,371.60 0.828 0.737 0.000 <br />Filename: pond007.sc4 Printed 02-24-2000 <br />