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Culvert T -F1* <br />Manning's Equation <br />Flow In a 30" Half Culvert <br />Flow Depth D 0.80 Feet <br />Slope S 0.33 Express as Decimal <br />Mannings "N" N 0.015 Express as Decimal <br />AREA = Number Derived in AutoCad <br />WETTED PERIMETER= (2*Pi*r)/2 <br />Number derived in AutoCad <br />R=AREA/WETTED PERIMETER <br />V=(1.49/N)*(R^.667)*(S^.5)= <br />Q=AXV= <br />Q REQUIRED - Peak Discharge * <br />I *Flow from top of gob pile No. 2, SedCad design follows <br />1.35 FEET "2 <br />3.01 FEET <br />0.45 <br />33.43 FT/SEC <br />45.14 CFS <br />7.12 CFS <br />Culvert T -F1 <br />Manning's Equation <br />Flow In a Trapezoidal "Smart Ditch" Channel <br />Depth D 0.4 <br />Feet <br />Width W 1.12 <br />Feet <br />Slope S 0.25 <br />Express as Decimal <br />Mannings "N" N 0.022 <br />Express as Decimal <br />Side Slope X 1.3 <br />Slope = X:1 <br />AREA=(W*D)+(X*D^2)= <br />0.66 FEET ^2 <br />WETTED PERIMETER=(W)+2*[((X*D)^2+D^2)^0.5] 2.43 FEET <br />R=AREA/WETTED PERIMETER <br />0.27 <br />V=(1.49/N)*(R".667)*(S^.5)= <br />14.14 FT/SEC <br />Q=AXV= <br />9.27 CFS <br />Q REQUIRED - Peak Discharge <br />7.12 CFS <br />* Smart ditch liner has been installed. For complete hydrology design, see following pages. <br />TR -115 App. B-103 05/18 <br />