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SSDCAD+ CULVERT SIZING UTILITY <br />CULVERT 8RC-D1R5 (REVISED) <br />Design Discharge = 3.850 cfe <br />Entrance Locs Coefficient = 0.9 <br />Pipe Length = 40.000 feet <br />Pipe Slope = 25.000 6 <br />Meaning's n = 0.024 <br />Maximum Headwater = 0.830 feat <br />Tailwatar Depth = 2.000 feet <br />Smallest Diameter Required to Pase Plow is 30 inches <br />PERFORMANCE CURVES: <br />Diameter: 21 inchec <br />Headwater Discharge <br />(ft) (cfs) Control <br />Flow <br />Type <br />0.08 0.20 Outlet (SUbcritical) 1 <br />0.17 0.39 Outlet (Suhcritical) 2 <br />0.25 0.59 Outlet (Subcritical) 2 <br />0.33 0.79 Inlet (Supercritical) 3 <br />0.41 0.99 Ialat (8upercritical) 6 <br />0.50 1.31 Ialat (Supercritical) 4 <br />0.58 1.65 Inlet (Supercritical) 6 <br />0.66 1.98 Inlet (Supercritical) 4 <br />0.75 2.38 Inlet (supercritical) 4 <br />0.83 2.78 Inlet (Supercritical) 4 <br />0.91 3.20 Inlet (Supercritical) 4 <br />1.00 3.65 Inlet (8upercritical) 6 <br />1.08 6.11 Inlet (Supercritical) 6 <br />1.16 4.60 Inlet (Supercritical) 4 <br />1.24 5.09 Inlet (Supercritical) 6 <br />___________-~___________________=_____ =====-M== ___-- <br />Diameter: 24 inches <br />Headwater Discharge <br />(ft) (cfs) Control <br />Flow <br />TYPe <br />0.08 0.22 Outlet (SUbcritical) 1 <br />0.17 0.43 Outlet (SUbcritical) 2 <br />0.25 0.65 Inlet (Supercritical) 3 <br />0.33 0.86 Inlet (Supercritical) 3 <br />0.41 1.13 Inlet (Supercritical) 6 <br />0.50 1.50 Inlet (Supercritical) 4 <br />0.58 1.87 Inlet (Supercritical) 4 <br />0.66 2.28 Inlet (supercritical) 4 <br />0.75 2.72 Inlet (Supercritical) 4 <br />0.83 3.17 Inlet (Supercritical) 4 <br />0.91 3.66 Inlet (Supercritical) 4 <br />1.00 6.17 Inlet (Supercritical) 4 <br />1.08 a.7o inlet (Supercritical) 6 <br />1.16 5.25 Inlet (Supercritical) 6 <br />1.26 5.82 Inlet (Supercritical) 6 <br />__=__~_______ _ ___________^_________~__________=Q_________ <br />• <br />• <br />i <br />