Contracted weir
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- The crest and sides of a retangular weir are far enough from the bottom and sides of the channel so that their effect on flow is negligible.
Bureau of Reclamation - Cite This Source - This Definition - Broad-crested weir, Cipolletti weir (trapezoidal weir), Deformation, Long-throated flumes, Ogee crest, Orifice, Overflow spillway (ogee spillway), Rectangular weir, Suppressed weir, Trapezoidal weir., V-notch weir, Weir