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I am looking at the solution to 5.1.1 in the Water resources engineering by Larry W Mays, My calculations do not yeld the same outcomes as the provided solution. Is there a mistake in this calculation? I get R = 9.59.

I am looking at the solution to 5.1.1 in the Water resources engineering by Larry W Mays, My calculations do not yeld the same outcomes as the provided solution. Is there a mistake in this calculation? I get R = 9.59.

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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I am looking at the solution to 5.1.1 in the Water resources engineering by Larry W Mays, My calculations do not yeld the same outcomes as the provided solution. Is there a mistake in this calculation? I get R = 9.59.

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From the Water resources engineering by Larry W Mays

Solution 5.1.1

An 8-ft wide rectangular channel with a bed slope of 0.0004 ft/ft has a depth of flow of 2 ft. Assuming a steady uniform flow, determine the discharge in the channel. The Manning roughness coefficient is n = 0.015.

Given:

B = 8 ft

y = 2 ft

So = 0.0004

n = 0.015

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