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Consider the California aqueduct, which is a concrete trapezoidal channel with a bottom width of 40...

Consider the California aqueduct, which is a concrete trapezoidal channel with a bottom width of 40 ft, a longitudinal slope of 0.004% and 1.5H:1V sideslopes (z = 1.5). Assume n = 0.013.

The design discharge is 6400 mgd. (use 9900 cfs)

The depth of water is 29 ft at point A.

The depth of water is 30 ft at point B.

(a) What is the normal depth?

b) Determine the critical depth.

(c) What type of profile exists in the vicinity of Point A? Make a sketch of the general shape of this type of water surface profile. Be sure to label the channel bottom, NDL, CDL, water surface and flow direction.

(d) Which point is further upstream, A or B? Explain the basis for your answer.

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