Broad-Crested Weirs
From ASDSO Dam Safety Toolbox
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| Cromwell Weir, Nottinghamshire.
(Image Source: Jonathan Thacker) |
“A weir is a notch of regular form through which water flows. The structure containing the notch is also called a weir. The edge over which the water flows is the crest. The two basic types of weirs are sharp-crested weirs and broad-crested weirs. Most hydraulic structures have broad-crested weirs. The crest is horizontal and long in the direction of flow so flow maintains contact with the crest rather than springing clear. The level crest in an earthen auxiliary spillway of a flood control dam is an example of a broad-crested weir."[1]
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Revision ID: 7442
Revision Date: 07/25/2023