Question

1. (25pts) This problem has two parts (1A and 1B). (1A). (10 pts) Calculate the uniform flowrate for an earth-lined (n = 0.02) trapezoidal canal flowing at a water depth of 2.0 m. The canal is constructed on a slope of 0.0001; its bottom width is 5 m and side slope is 2:1 (H:V).

(1B) (15 pts) It has been found that this structure doesn’t have the optimum hydraulic design for the given side slope. What dimensions are required to have the optimum hydraulic design (for the given side slope)?

Answer 1