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Project Description <br />Friction Method <br />Solve For <br />input Data <br />Roughness Coefficient <br />Channel Slope <br />Left Side Slope <br />Righi Side Slope <br />Bottom Width <br />Discharge <br />Discharge (ft'/s) <br />20 00 <br />30.00 <br />40.00 <br />50.00 <br />60.00 <br />70.00 <br />80.00 <br />90.00 <br />100.00 <br />110.00 <br />120.00 <br />130.00 <br />140.00 <br />150.00 <br />160.00 <br />170.00 <br />180.00 <br />190.00 <br />200.00 <br />10/26/2010 4:23:24 PM <br />Rating Table for Trapezoidal Channel ~ 1 <br />Manning Formula <br />Normal Depth <br />Normal Depth (ft) Velocity (ft/s) <br />0.63 2.39 <br />0.80 2.76 <br />0.95 3.04 <br />1.08 3.28 <br />1.20 3.48 <br />1.31 3.66 <br />1'41 3.83 <br />1.51 3.97 <br />1.60 4.11 <br />1.69 4.23 <br />1.77 4.35 <br />1.86 4.46 <br />1.93 4.56 <br />2.01 4.66 <br />2.08 4.75 <br />2.15 4.84 <br />2.22 4.92 <br />2.29 5.00 <br />2.36 5.08 <br />0.030 <br />0.00500 ft/ft <br />2.00 ft/ft (H:V) <br />2.00 ft/ft(H:V) <br />12.00 ft <br />200 00 ft'/s <br />Flow Area (ft') Wetted Perimeter (ft) <br />8.36 14.82 <br />10.88 15.58 <br />13.14 16.23 <br />15.24 16.82 <br />17.22 17.35 <br />19.10 17.85 <br />20.90 18.31 <br />22.65 18.75 <br />24.34 19.16 <br />25.99 19.56 <br />27.59 19.94 <br />29.16 20.30 <br />30.70 20.65 <br />32.20 20.99 <br />33.68 21.32 <br />35.14 21.63 <br />36.57 21.94 <br />37.97 22.24 <br />39.37 22.54 <br />Top Width (ft) <br />14.52 <br />15.20 <br />15.78 <br />16.31 <br />16.79 <br />17.23 <br />17.64 <br />18 03 <br />18.41 <br />18.76 <br />19.10 <br />19.42 <br />19.74 <br />20.04 <br />20.33 <br />20.62 <br />20.89 <br />21.16 <br />21.42 <br />Bentley Systems, Inc. Haestacl Methods So!Btlotl~MasterV8i (SELECTserles 1) [08.11.01.03] <br />27 Siernons Company Dr1ve Sulte 200 W Watertown, CT 06795 USA +1-203-755-1666