Answered: Mannings

Engineering

Civil Engineering

Mannings

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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Question

Water is flowing to a depth of 2 ft in a trapezoidal ditch having a bottom width of 3 ft and a
side slopes of 2:1. The roughness coefficient is 0.042. The gradient of the ditch is 0.15.
Calculate the velocity in ft/s using Mannings’ equation.

Answers should be 11.94

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