A trapezoidal channel of bottom width 25 ft and side slopes of1:2.5 carries a di

Question

A trapezoidal channel of bottom width 25 ft and side slopes of1:2.5 carries a discharge of 450 cfs with a normal depth of 3.5 ft.The elevations at the beginning and end of the channel are 685 and650 ft respectively. If n=0.02, determine the length of thechannel. A trapezoidal channel of bottom width 25 ft and side slopes of1:2.5 carries a discharge of 450 cfs with a normal depth of 3.5 ft.The elevations at the beginning and end of the channel are 685 and650 ft respectively. If n=0.02, determine the length of thechannel.

Explanation / Answer

13.3 ft

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