TM 5-820-3/AFM 88-5, Chap. 3
(3) The unit discharge required for incipient
foot of width would be required to prevent dep-
transport and prevention of deposition of medium
osition of very coarse sand or very fine gravel.
sand in a channel with a 5-foot depth of flow can
Thus, an average unit discharge of about 10 cubic
be estimated to be about 7.4 cubic feet per second
feet per second per foot of width should not cause
per foot of width from the equation
severe erosion or deposition of the medium sand
common to the basin and a 5-foot depth of flow in
the desired channel.
or figure D-2. In addition, it is indicated that a unit
discharge of about 13 cubic feet per second per