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A trapezoidal channel is lined with rock riprap and has a bottom width of 20 ft, 1.5:1 side slope (horizontal to vertical), a bottom slope of 0.0010 ft/ft, and a Manning n of 0.030. At the end of the canal the flow is critical before it hits an overfall with a spillway structure. Determine the critical and normal depth and sketch the water surface profile. use a discharge of 1500 cfs)

A trapezoidal channel is lined with rock riprap and has a bottom width of 20 ft, 1.5:1 side slope (horizontal to vertical), a bottom slope of 0.0010 ft/ft, and a Manning n of 0.030. At the end of the canal the flow is critical before it hits an overfall with a spillway structure. Determine the critical and normal depth and sketch the water surface profile. use a discharge of 1500 cfs)

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A trapezoidal channel is lined with rock riprap and has a bottom width of 20 ft, 1.5:1 side slope (horizontal to vertical), a bottom slope of 0.0010 ft/ft, and a Manning n of 0.030. At the end of the canal the flow is critical before it hits an overfall with a spillway structure. Determine the critical and normal depth and sketch the water surface profile. (use a discharge of 1500 cfs)
Transcribed Image Text:A trapezoidal channel is lined with rock riprap and has a bottom width of 20 ft, 1.5:1 side slope (horizontal to vertical), a bottom slope of 0.0010 ft/ft, and a Manning n of 0.030. At the end of the canal the flow is critical before it hits an overfall with a spillway structure. Determine the critical and normal depth and sketch the water surface profile. (use a discharge of 1500 cfs)
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