A side-channel spillway is a type of water management structure designed to safely divert excess water from a reservoir or dam. Unlike traditional spillways that release water directly over the dam, side-channel spillways direct water through a separate channel, reducing the risk of erosion and damage to the main structure. This design helps manage high water flows during heavy rainfall or snowmelt. These spillways are often used in conjunction with dams and reservoirs to maintain safe water levels. By controlling the flow of water, side-channel spillways help prevent flooding and protect surrounding areas, ensuring the stability and safety of the entire water management system.