Use the sketch and channel properties to complete Table 1 below.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Figure B2 is a sketch of an engineered channel looking downstream. The right side of the channel has a bench (like a bike path, or river walk). The longitudinal
(in direction of flow) slope is 0.001, Manning's n for the channel is 0.025.
feet
20 et
10et
Figure B2. Channel cross section at a bridge
Use the sketch and channel properties to complete Table 1 below.
Depth (ft) Flow Area (t) Wetted Perimeter () Hydraulic Radius () Discharge (cfa)
0.0
0.0
0.0
0.0
0.0
30
90.0
36.0
2.5
6.0
900.0
8.0
9.0
20.0
What are the normal and critical flow depths in the channel when the discharge is 900 efs?
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