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Design a rectangular riprap channel to convey 30 cfs with a velocity of 2.5 ft/sec. Use...

Design a rectangular riprap channel to convey 30 cfs with a velocity of 2.5 ft/sec. Use the high end of the n-value for riprap. The slope is 0.5 percent. Solve analytically, i.e., set up equations for properties (area, wetted perimeter, and hydraulic radius) and solve for the unknowns. Then check using a spreadsheet. No credit if analytic solution is not included!

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based on mannings value n the sum will be vary i take n as 0.033 from table... If not 0.033 then provide n value.. Comment if any doubt regarding the problem thank you

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