AIH Professional Hydrologist — Surface Water Examination

Practice session

A broad-crested concrete weir with a horizontal crest length of b = 10.0 feet and crest breadth of L = 4.0 feet operates under free discharge with an upstream head of H = 1.00 foot above the crest. Using the standard broad-crested weir equation Q = C_d * b * H^(1.5) with C_d = 3.09, what is the flow discharge?

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