Barrage

A barrage is a large structure built across a river or waterway to control water flow, often used for hydroelectric power, water storage, or flood management. It functions like a barrier that holds back water, creating a reservoir or controlling water levels downstream. Barrages typically have gates that can be opened or closed to regulate flow, helping manage water supply, generate electricity, and prevent floods. They are essential infrastructure for managing water resources sustainably and ensuring safety in areas prone to flooding or drought.