Difference Between Weir And Barrage

Difference Between Weir And Barrage:

The difference between weir and barrage is described below.


Weir is an impenetrable boundary which is developed over a river or waterway to raise the water level on the upstream side. In this system, the water level is raised up to the required height and the excess water is permitted to discharge over the weir. Weir is mainly constructed across an immersion river or waterway.


When adjustable gates are installed in a weir to keep up the surface the water at a diverse level at various times, is called barrage.

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In this system, the water level is balanced by operating the shutters or gates. The gates are provided at different levels and operated by cables from a cabin. These gates are supported on piers at both ends. The pier to pier distance is called a bay.


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