spillways

A spillway is a structure built into a dam that safely directs excess water away when the reservoir reaches full capacity. Its main purpose is to prevent the dam from overflowing or collapsing during heavy rains or floods. Spillways can be open channels or tunnels, designed to control the flow of water downstream. They are engineered to handle large volumes of water efficiently and safely, ensuring the stability of the dam and protecting communities and ecosystems downstream from potential flood damage.