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I• <br />a <br />LJ <br />Munger Creek Channel <br />100 Year Flood Analysis <br />Mannings Equatior <br />Section 4 <br />DEPTH D 3.0 Feet <br />WIDTH W 29.8 Feet <br />Slope S 0.040 Express as Decima <br />Mannings "N" N 0.05 Express as Decima <br />AREA <br />WETTED PERIMETER <br />R=AREA/WETTED PERIMETER <br />V=(1.49/N j • (R^. 667)'(S^.5 )_ <br />Q=AXV= <br />Q REQUIRED -Peak Discharge <br />DEPTH D 4.0 Feet <br />WIDTH W 29.3 Feet <br />Slope S 0.040 Express as Decima <br />Mannings "N" N 0.05 Express as Decima <br />AREA <br />WETTED PERIMETER <br />R=AREA/WETTED PERIMETER <br />V=(1.49/ N)"(R^. 667 )' (S^.5 )= <br />G2=AXV= <br />Q REQUIRED -Peak Discharge <br />Section 5 <br />54.50 FtZ <br />30.60 Feet <br />1.78 <br />8.76 FeeUSec <br />477 CFS <br />389 CFS <br />52.90 Ft2 <br />30.50 Feet <br />1.73 <br />8.60 FeeUSec <br />455 CFS <br />389 CFS <br />See Figure 2.2-7a for section: <br />Required flow is from Table 4.5-E <br />M" <br />M(vii)-53 <br />9/02 <br />