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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 1.35 FEET "2 <br />WETTED PERIMETER= (2*Pi*r)/2 3.01 FEET <br />Number derived in AutoCad <br />R=AREA/WETTED PERIMETER 0.45 <br />V=(1.49/N)*(R^.667)*(S^.5)= 33.43 FT/SEC <br />Q=AXV= 45.14 CFS <br />IQ REQUIRED - Peak Discharge * 2.00 CFS <br />I *Flow from E. Diversion ditch (previously approved with TR -89) <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] <br />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 />2.00 CFS <br />MR -191 App. B-103 10/16 <br />