Irrigation Engineering
The discharge passing over an ogee spillway is given by (where, L is effective length of spillway crest and H is the total head over the spillway crest including velocity head.)

CLH1/2
CHL3/2
CLH5/2
CLH3/2

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Irrigation Engineering
A counter berm is

A horizontal benching provided on the outside slope
A vertical benching provided on the outer edge of the bank
A horizontal benching provided on the inside slope
A vertical benching provided on the inner edge of the bank

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