Question: 9 . 2 2 . A trapezoidal channel is to be excavated on a slope of 0 . 1 % and have a design discharge

9.22. A trapezoidal channel is to be excavated on a slope of 0.1% and have a design discharge of 35m3s. Right-ofway constraints require the top width of the channel to be 17m, and the channel is expected to consist of clean] gravel (moderately angular) with a 75-percentile diameter of 3cm. If freeboard is taken to be zero, determine the required bottom width and side slopes of the channel. Is the required channel practical?
9 . 2 2 . A trapezoidal channel is to be

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