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SEDCAD 4 for Windows <br />r~.."~~„tir ~ ocaa _~nn~ o~,,,oi~ i c,-h,.,~ti <br /> <br /> Stability <br />Class D w/o <br />Freeboard Stability <br />Class D w/ <br />Freeboard Capacity <br />Class B w/o <br />Freeboard Capacity <br />Class B w/ <br />Freeboard <br />Design Discharge: 6.75 cfs 6.75 cfs <br />Depth: 0.96 ft 1.26 ft 1.47 ft 1.77 ft <br />Top Width: 5.74 ft 7.54 ft 8.84 ft 10.64 ft <br />Velocity: 2.46 fps 1.04 fps <br />X-Section Area: 2.74 sq ft 6.52 sq ft <br />Hydraulic Radius: 0.453 ft 0.699 ft <br />Froude Number: 0.63 0.21 <br />Roughness Coefficient: 0.0564 0.1792 <br />Structure #3 (Pond) <br />Sediment Pond <br />Pond Inputs: <br />Initial Pool Elev: 5,392.00 ft <br />Initial Pool: 0.23 ac-ft <br />*Sediment Storage: 0.10 ac-ft <br />Dead Space: 20.00 <br />*Sediment capacity based on Average Annual R of 20.0 for 1 year(s) <br />Perforated Riser <br />Riser <br />Riser Height <br />Diameter Barrel <br />Barrel Barrel Slope <br />Diameter Number of <br />Spillway Elev <br />Holes per <br />Manning s n <br />(ft) <br />(in) Length (ft) (%) <br />(in) (ft) <br />Elev <br />24.00 3.00 24.00 69.00 2.00 0.0140 5,394.00 4 <br />Pond Results: <br />Peak Elevation: 5,393.49 ft <br />H'graph Detention Time: 14.01 hrs <br />Pond Model: CSTRS <br />Dewater Time: 2.46 days <br />Trap Efficiency: 81.39 <br />Dewatering time is calculated from peak stage to lowest spillway <br />Elevation-Ca~acitx-Discharge Table <br />Filename: 10yr-24hr Sediment Pond Design.sc4 Printed 05-08-2007 <br />