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Determine the normal depth, critical depth, and channel type (mild, steep, etc.) for a trapezoidal channel...

Determine the normal depth, critical depth, and channel type (mild, steep, etc.) for a trapezoidal channel with a base width of 22 and side slope 4 to 1. There is a flow rate of 1500 cfs flowing through the channel. The overall longitudinal slope is 2% and the channel is composed of soil (n=0.03).  

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