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ORCHARD VALLEY CULVERT "H" 10 YEAR <br />Design Discharge 0.460 cfs <br />Entrance Loss Coefficient 0:7 <br />Pipe Length 90.000 feet <br />• Pipe Slope 8.000 $ <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 6 inches <br />PERFORMANCE CURVES: <br />Diameter: 4 inches <br />Headwater Discharge Flow <br />(ft) (cfs) <br />---- Control <br />-- <br />-- <br />- <br />-- Type <br />--------- <br />------------- <br />0.15 --------- <br />0.00 ---- <br />--------- <br />--- 0 <br />0.30 0.00 0 <br />0.45 0.01 0 <br />0.60 0.01 0 <br />0.75 0.01 0 <br />0.90 0.01 0 <br />1.05 0.01 0 <br />1.20 0.01 0 <br />1.35 0.02 0 <br />1.50 0.02 0 <br />• _____________ === <br />___ <br />=====________ _________ <br /> Diameter: 6 inches <br />Headwater Discharge Flow <br />(ft) <br />------------- (cfs) <br />------------- Control <br />----------------------- Type <br />--------- <br />0.15 0.04 0 <br />0.30 0.08 0 <br />0.45 0.12 Outlet (Subcritical) 1 <br />0.60 0.16 Outlet (Subcritical) 1 <br />0.75 0.21 Outlet (Subcritical) 1 <br />0.90 0.25 Outlet (Subcritical) 1 <br />1.05 0.29 Outlet (Subcritical) 2 <br />1.20 0.33 Outlet (Subcritical) 2 <br />1.35 0.37 Outlet (Subcritical) 2 <br />1.50 <br />_ _ 0.41 Outlet (Subcritical) <br />= C L 6 C 2 <br />Diameter: 8 inches <br />Headwater Discharge Flow <br />(ft) <br />------------- (cfs) <br />------------ Contr <br />-------- ol <br />---------------- Type <br />--------- <br />0.15 0.18 Outlet (Subcritical) 1 <br />0.30 0.37 Outlet (Subcritical) 2 <br />. 0.45 <br />0.60 0.55 <br />0.74 Inlet <br />Inlet (Supercritical) <br />(Supercritical) 3 <br />4 <br />0.75 0.92 Inlet 5 <br />0.90 1.05 Inlet 5 <br />1.05 1.13 Znlet 5 <br />1.20 1.21 Inlet 5 <br />1.35 1.29 Inlet 5 <br />1 C~ t 1R Tnlct 5 <br />C-6/ <br />