The length of the weir L (in feet):

Traffic and Highway Engineering
5th Edition
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Garber, Nicholas J.
Chapter16: Highway Drainage
Section: Chapter Questions
Problem 13P
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31
A contracted rectangular weir is to be installed in a channel 8ft wide. The maximum
the
flow over the weir is 60.0 cfs (ft³/s) when the depth of flow H is 3.0 ft. What
length of the crest (L) of the weir that should be installed if the weir equation is Q =
3.4(L2/10H) * (H)3/2
The length of the weir L (in feet):
C. 5
A. 3
B.4
D. 6
E. None of the above
Transcribed Image Text:A contracted rectangular weir is to be installed in a channel 8ft wide. The maximum the flow over the weir is 60.0 cfs (ft³/s) when the depth of flow H is 3.0 ft. What length of the crest (L) of the weir that should be installed if the weir equation is Q = 3.4(L2/10H) * (H)3/2 The length of the weir L (in feet): C. 5 A. 3 B.4 D. 6 E. None of the above
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