Flood control dam

A flood control dam is a structure built across a river or stream to manage water flow during heavy rainfall or snowmelt. Its primary purpose is to reduce the risk of flooding downstream by holding back excess water and releasing it gradually. The dam stores floodwater temporarily, preventing sudden, destructive surges, and can also help ensure a steady supply of water during dry periods. These dams are carefully designed to balance flood prevention, water storage, and ecological considerations, protecting communities and managing water resources effectively.