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• Munger Creek Channel <br /> 100 Year Flood Analysis <br /> Mannings Equatior <br /> Section 1 <br />DEPTH D 4.5 Feet <br />WIDTH W 29.5 Feet <br />Slope S 0.018 Express as Decima <br />Mannings "N" N 0.05 Express as Decima <br />AREA 69.40 Ft2 <br />WETTED PERIMETER 31.00 Feet <br />R=AREA/WETTED PERIMETER 2.24 <br />V=(1.49/N}"(R^.667)`(S^.5}= 6.84 FeeUSec <br />CZ=AXV= 475 CFS <br />Q REQUIRED -Peak Discharge 389 CFS <br /> Section 2 <br />DEPTH D 4.5 Feet <br />WIDTH W 20.6 Feet <br />Slope S 0.025 Express as Decima <br />Mannings "N" N 0.05 Express as Decima <br />AREA 57.10 FtZ <br />WETTED PERIMETER 23.10 Feet <br />R=AREANJETTED PERIMETER 2.47 <br />V=(1,49/N)`(R^.667)'(S^.5}= 8.61 FeeUSec <br />Q=AXV= 492 CFS <br />Q REQUIRED -Peak Discharge 389 CFS <br /> SeMion 8 <br />DEPTH D 4.0 Fee! <br />WIDTH W 21.4 Feet <br />Slope S 0.020 Express as Decima <br />Mannings "N" N 0.05 Express as Decima <br />AREA 56.30 Ft2 <br />WETTED PERIMETER 23.60 Feet <br />R=AREA/WETTED PERIMETER ~ 2.39 <br />V=(1.49/N)`(R^.667)`(S^.5)= 7.52 FeeUSec <br />Q=AXV= 424 CFS <br />Q REQUIRED -Peak Discharge 389 CFS <br />M" M(vii)-52 9/02 <br />