(Manning equation) (a) Determine the maximum flowrate possible for the creek shown in the figure below if it is not to overflow onto the floodplain. The creek bed drops an average of 5.11 ft/half-mile of length. (b) Determine the flowrate during a flood if the depth is 8 ft. Light brush floodplain Clear, straight 8 ft 4 ft (a) i 50 ft 7 ft channel 6 ft Pasture floodplain -5 ft 80 ft ft³/s (b) i ft³/s 8 ft

Traffic and Highway Engineering
5th Edition
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Garber, Nicholas J.
Chapter16: Highway Drainage
Section: Chapter Questions
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(Manning equation) (a) Determine the maximum flowrate possible for the creek shown in the figure below if it is not to overflow onto
the floodplain. The creek bed drops an average of 5.11 ft/half-mile of length. (b) Determine the flowrate during a flood if the depth is 8
ft.
Light brush floodplain
Clear, straight
8 ft
4 ft
(a) i
50 ft
7 ft
channel
6 ft
Pasture floodplain
-5 ft
80 ft
ft³/s
(b) i
ft³/s
8 ft
Transcribed Image Text:(Manning equation) (a) Determine the maximum flowrate possible for the creek shown in the figure below if it is not to overflow onto the floodplain. The creek bed drops an average of 5.11 ft/half-mile of length. (b) Determine the flowrate during a flood if the depth is 8 ft. Light brush floodplain Clear, straight 8 ft 4 ft (a) i 50 ft 7 ft channel 6 ft Pasture floodplain -5 ft 80 ft ft³/s (b) i ft³/s 8 ft
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