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SEDCAD 4 for Windows <br />rt~..,,d..ro goon o~.~a~ i c~~.,.,~~, <br />12 <br />• <br />Initial Pool Elev: 6,830.00' <br />Initial Pool: 5.48 ac-ft <br />*Sediment Storage: 0.00 ac-R <br />Dead Space: 20.00 <br />*No sediment capacity defined <br />Perforated Riser <br />Riser Riser Height Barrel Barrel Barrel Slope Number of <br />' <br />Diameter <br />(R) Diameter ° <br />Length (R) (/o) Manning <br />s n Spillway Elev Holes per <br />(in) (in) Elev <br />18.00 11.601 18.00 173.00 8.70 0.0250 6,837.00 3 <br />Emergency Saillway <br />Spillway Elev Crest Length Left Right Bottom <br />(ft) Sideslope Sideslope Width (ft) <br />6,838.00 21.00 1.50:1 1.50:1 24.00 <br />Pond Results: <br /> <br />Peak Elevation: 6,834.44 <br />H'graph Detention Tme: 12.89 hrs <br />Pond Model: CSTRS <br />Dewater Time: 1.33 days <br />Trap Efficiency: 58.45 <br />Dewatering time is calculated from peak stage to lowest spi/lway <br />Elevation-Capacity-Discharge Table <br /> <br /> <br />Elevation Area <br /> <br />(ac) Capacity <br /> <br />(ac-R) Discharge Dewater <br />Time <br />(ors) (hrs) <br />6,821 .00 0.131 0.000 0.000 Top of Sed. Storage <br />6,821 .50 0.275 0.099 0.000 <br />6,822 .00 0.474 0.284 0.000 <br />6,822 .50 0.499 0.527 0.000 <br />6,823 .00 0.525 0.783 0.000 <br />6,823 .50 0.545 1.051 0.000 <br />6,824 .00 0.564 1.328 0.000 <br />6,824 .50 0.584 1.615 0.000 <br />6,825 .00 0.609 1.912 0.000 <br />6,825 .40 0.620 2.157 0.000 <br />6,625 .50 0.624 2.219 0.000 <br />6,626. 00 0.649 2.536 0.000 <br />Filename: WestPit-SpillwayDesign.sc4 Printed 07-76-2002 <br />