A spillway is a structure used to manage excess water from a dam or reservoir. Its primary function is to safely release water when levels rise too high, preventing overflow and potential flooding. Spillways can be designed in various forms, including gated spillways and ungated spillways, depending on the specific needs of the water management system. Typically located at the side or base of a dam, spillways direct water away from the structure and into a river or other body of water. This helps maintain the stability of the dam while ensuring that the surrounding environment is protected from the dangers of uncontrolled water release.