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• <br />0 <br />• <br />SEDCAD 4 for Windows <br />Copyright 1998 Pamela J. Schwab <br />Civil Software Design <br />Stability Stability <br />Capacity Capacity <br />Class D w/o Class D w/ <br />Class B w/o Class B w/ <br />Freeboard Freeboard <br />Freeboard Freeboard <br />Roughness Coefficient: 0.0349 <br />0.0679 <br />Structure #6 (Pond1 <br />area east of pond + area west of pond <br />Pond Inputs: <br />Initial Pool Elev: <br />6,909.50 <br />Initial Pool: <br />0.48 ac -ft <br />`Sediment Storage: <br />1.00 ac -ft <br />Dead Space: <br />20.00% <br />*Sediment capacity was entered by user <br />Perforated Riser <br />Riser <br />Riser Height <br />Barrel <br />l Barrel <br />BarreSlope <br />l el S <br />Number of <br />Diameter <br />(ft) <br />Diameter <br />Manning's n Spillway Elev <br />Length <br />g <br />Holes per <br />(in) <br />(ac) <br />(in) <br />(cfs) <br />Elev <br />12.00 <br />13.00 <br />12.00 <br />80.00 6.00 0.0240 6,917.00 <br />5 <br />Pond Results: <br />Emergency Spillway <br />Spillway Elev Crest Length Left Right Bottom <br />(ft) Sideslope Sideslope Width (R) <br />6,918.00 14.00 2.50:1 1.00:1 10.00 <br />Peak Elevation: <br />6,919.10 <br />H'graph Detention Time: <br />7.81 hrs <br />Pond Model: <br />CSTRS <br />Dewater Time: <br />2.63 days <br />Trap Efficiency: <br />82.98% <br />Dewatering time /s calculated from peak stage to lowest spillway <br />Elevation -Capacity -Discharge Table <br />Filename: Revt00aPondOO7.sc4 <br />11 <br />Printed 01-07-2002 <br />Area <br />Capacity <br />Discharge <br />Dewater <br />Elevation <br />Time <br />(ac) <br />(ac -ft) <br />(cfs) <br />(hrs) <br />6,908.27 <br />0.365 <br />0.000 <br />0.000 <br />Top of Sed. Storage <br />6,908.50 <br />0.375 <br />0.087 <br />0.000 <br />6,909.00 <br />0.394 <br />0.279 <br />0.000 <br />Filename: Revt00aPondOO7.sc4 <br />11 <br />Printed 01-07-2002 <br />