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J8UI.AUT I.ULVGKl J1[.11Vb U11L111 <br />ORCHARD VALLEY CULVERT "G "' 10 YEAR <br />Design Discharge = 1.560 cfs <br />Entrance Loss Coefficient = 0.9 <br />Pipe Length 20.000 feet <br />Pipe Slope 2.000 <br />_ <br />Manning's n 0.024 <br />Maximum Headwater = 2.000 feet <br />Tailwater Depth = 0.000 feet <br />Smallest Diameter Required to Pass Flow is 8 inches <br />PERFORMANCE CURVES: <br />Diameter: 6 inches <br />Headwater Discharge Flow <br />(ft) (cfs) Control Type <br />0.20 0.07 0 <br />0.40 0.14 Outlet (Subcritical) 1 <br />0.60 0.20 Outlet (Subcritical) 1 <br />0.80 0.27 Outlet (Subcritical) 2 <br />1.00 0.34 Outlet (Subcritical) 2 <br />1.20 0.41 Outlet (Subcritical) 2 <br />1.40 0.47 Inlet (Supercritical) 3 <br />1.60 0.54 Inlet (Supercritical) 3 <br />1.80 0.61 Inlet (Supercritical) 4 <br />2.00 0.68 Inlet (Supercritical) 4 <br />___°_________ <br />• _______°°=====z=====~~_~_______________°°____ <br /> Diameter: 8 inches <br />Headwater Discharge Flow <br />(ft} <br />------------- (cfs) <br />------------- Control <br />----------------------- Type <br />--------- <br />0.20 0.23 Outlet (Subcritical) 1 <br />0.40 0.46 Inlet (Supercritical) 3 <br />0.60 0.68 Inlet (Supercritical) 4 <br />0.80 0.91 Inlet 5 <br />1.00 1.06 Outlet 6 <br />1.20 1.15 Outlet 6 <br />1.40 1.25 Outlet 6 <br />1.60 1.34 Outlet 6 <br />1.80 1.43 Outlet 6 <br />2.00 1.53 Outlet 6 <br /> <br />Diameter: 9 inches <br />Headwater Discharge Flow <br />(ft) <br />------------- (cfs) <br />------------ Control <br />------------------------ Type <br />--------- <br />0.20 0.25 0 <br />0.40 0.50 0 <br />0.60 <br />0.80 0.75 <br />1.00 Outlet <br />Outlet (Subcritical) <br />(Subcritical) 1 <br />1 <br />1.00 1.19 Outlet (Subcritical) 2 <br />1.20 1.38 Inlet (Supercritical) 3 <br />1.40 1.58 Inlet (Supercritical) 4 <br />1.60 1.77 Inlet 5 <br />1.80 1.96 Outlet 6 <br />~ ~~ ~ UR hurlat F <br />C-f9 <br />