sluices

A sluice is a structure used to control water flow in rivers, streams, or canals. It typically consists of a gate or barrier that can be opened or closed to regulate water levels and movement. Sluices are essential in managing water for irrigation, flood control, and environmental management. They allow for controlled release or retention of water, helping prevent flooding, directing water to specific areas, or maintaining water levels for ecosystems or human use. Designed to be adjustable, sluices can adapt to changing water conditions and needs.