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SEDCAD+ CULVERT SIZING UTILITY <br />culvert l0 <br />• Design Discharge = 0.320 cfs <br />Entrance Loss Coefficient = 0.5 <br />Pipe Length = 80.000 feet <br />Pipe Slope = 0.500 ~ <br />Manning's n = 0.024 <br />Maximum Headwater = 3.600 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) Control Type <br />0.36 0.00 0 <br />0.72 0.01 0 <br />1.08 0.01 0 <br />1.44 0.02 0 <br />1.80 0.02 0 <br />2.16 0.03 0 <br />2.52 0.03 0 <br />2.88 0.04 0 <br />3.24 0.04 0 <br />3.60 0.05 0 <br /> Diameter: 6 inches <br />Headwater Discharge Flow <br />(ft) (cfs) Control Type <br />0.36 0.04 0 <br />0.72 0.08 0 <br />1.08 0.12 Outlet (Subcritical) 1 <br />1.44 0.15 Outlet (Subcritical) 1 <br />1.80 0.19 Outlet (Subcritical) 1 <br />2.16 0.23 Outlet (Subcritical) 1 <br />2.52 0.27 Outlet (Subcritical) 2 <br />2.88 0.31 Outlet (Subcritical) 2 <br />3.24 0.35 Outlet (Subcritical) 2 <br />3.60 0.39 Outlet (Subcritical) 2 <br />Diameter: 8 inches <br />Headwater Discharge <br />Control <br />Flow <br />Type <br />(ft) (cfs) <br />------------- <br />. 0.36 ---------- <br />0.16 <br />0.72 0.32 <br />1.08 0.49 <br />1.44 0.65 <br />--------------------- <br />Outlet (Subcritical) <br />Outlet (Subcritical) <br />Inlet (Supercritical) <br />Inlet (Supercritical) <br />1 <br />2 <br />3 <br />4 <br />Exhibit 18 273c Revised 4)9190 <br />