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Drop structures and check dams -Cont. - ufc_3_230_16fa0063
Chapter 7:Chutes
Drainage and Erosion Control Structures for Airfields - index
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62
TM
5-820-3/AFM
88-5,
Chap.
3
V =
Discharge/area
at
end
of
basin
=
250/
10
5 = 5
feet
per
second
Riprap
should
extend approximately 10
times
depth
of
flow
downstream
from
structure
(10
5 = 50
feet).
6-7