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SEDCAD 4 for Windows <br />9 <br /> w/o Freeboard w/ Freeboard <br />Design Discharge: 74.48 cfs <br />Depth: 2.33 ft <br />Top Width: 14.01 ft <br />Velocity: 4.56 fps <br />X-Section Area: 16.35 sq ft <br />Hydraulic Radius: 1.107 ft <br />Froude Number: 0.74 <br />Structure #3 (Pond, <br />Section 16 Pond <br />Pond Inputs: <br />Initial Pool Elev: 7,746.00 ft <br />Initial Pool: 1.22 ac-ft <br />*Sediment Storage: 0.00 ac-ft <br />Dead Space: 20.00 <br />*No sediment capacity defined <br />Emer4ent:v Soillwa <br />Spillway Elev Crest Length Left Right Bottom <br />(ft) Sideslope Sideslope Width (ft) <br />7,754.50 17.00 2.00:1 2.00:1 19.00 <br />Perforated Riser <br />Riser <br />Diameter Riser Height Barrel <br />Diameter Barrel Barren Slope Number of <br />Manning's n Spillway Elev Holes per <br />(in) (ft) (in) Length (ft) (/o) (ft) <br />Elev <br />12.00 9.20 12.00 121.00 8.00 0.0250 7,752.90 2 <br />Pond Results: <br />Peak Elevation: 7,754.19 ft <br />H'graph Detention Time: 11.60 hrs <br />Pond Model: CSTRS <br />Dewater Time: 1.57 days <br />Trap Efficiency: 70.50 <br />Dewatering time is calculated from peak stage to lowest spillway <br />Elevation-Capacity-Discharge Table <br />Filename: Sec16Mining1024R1.sc4 <br />Printed 03-28-2008 <br />Exh. 7-140-12 Revision Date: 07/07/08 <br />Revision No.: TR-71 <br />