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ORCHARD .VALLEY CULVERT "D" 10 YEAR <br />Design Discharge a 0.160 cfs <br />Entrance Loss Coefficient m 0.7 <br />Pipe Length a 60.000 feet <br />Pipe Slope 13.000 8 <br />v <br />Manning's n 0.024 <br />Maximum Headwater - 1.500 feet <br />Tailwater Depth 0.000 feet <br />Smallest Diameter Required to Pass Flow is 4 inches <br />PERFORMANCE CURVES: <br />Diameter: 2 inches <br />Headwater Discharge Flow <br />-----(ft)---- ---(cfs)-------Control-------- --------TYPe--- <br />0.15 0.00 0 <br />0.30 0.00 0 <br />0.45 0.00 0 <br />0.60 0.00 0 <br />0,75 0.00 0 <br />0.90 0.00 0 <br />1.05 0.00 0 <br />1.20 0.00 0 <br />1.35 0.00 - 0 <br />1.50 0.00 0 <br />II a a m a a a a a a a a a a a a C m m a a a a O Z a a a L a L C L a a a a Z a m 6 m a II a a a II v a a a a C II II C t <br /> Diameter: 4 inches <br />Headwater Discharge Flow <br />(ft) <br />------------- (cfs). Control <br />------------------------------- Type <br />-------------- <br />0.15 0.00 0 <br />0.30 0.01 0 <br />0.45 0.01 0 <br />0.60 0.01 0 <br />0.75 0.01 0 <br />0.90 0.02 0 <br />1.05 0.02 0 <br />1.20 0.02 0 <br />1.35- 0.03 0 <br />1.50 0.03 0 <br />mmmmm:acamaaa aacccmavamccaaaacaccamamccaamacaacaccaasccccc <br />Diameter: 6 inches <br />Headwater Discharge Flow <br />(ft) (cfs) Control Type <br />0.15 0.11 Outlet (Subcritical) 1 <br />0.30 0.21 Outlet (Subcritical) 1 <br />0.45 0.32 Outlet (Subcritical) 2 <br />0.60 0.43 Outlet (Subcritical) 2 <br />0.75 0.53 Inlet {Supercritical) 3 <br />0.90 0.64 Inlet (Supercritical) 3 <br />1.05 0.75 Inlet (Supercritical) 4 <br />1.20 0.85 Inlet (Supercritical) 4 <br />1.35 0.96 Inlet 5 <br />i to i qd T.+l ar S <br />C-,f/ <br />