Lost Creek has a rectangular channel 2miin length (10,560 ft) with a wooden bridge in the...

Lost Creek has a rectangular channel 2miin length (10,560 ft) with a wooden bridge in the middle of this reach (x = 5280 ft). (See Fig.) The channel is dredged earth (n = 0.025) with a bottom width of 200 ft and a bed slope of 0.001. The computed 100-yr peak flow is 10,000 cfs for the entire 2-mi reach.

(a) Compute the normal depth.

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(b) Compute the critical depth.