Weir

Definition (http://en.wikipedia.org/wiki/Weir)

A weir is a barrier across a river designed to alter the flow characteristics. In most cases, weirs take the form of a barrier, smaller than most conventional dams, across a river that causes water to pool behind the structure (not unlike a dam) and allows water to flow over the top. Weirs are commonly used to alter the flow regime of the river, prevent flooding, measure discharge and help render a river navigable. (Wikipedia)

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This term is used for the following terms: 
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Approved Date
08-Aug-2014

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