River Barriers

River barriers are natural or man-made features that obstruct or control the flow of water in a river. Naturally, features like rocks, fallen trees, or sandbars can slow or redirect water movement. Human-made barriers include dams, weirs, and levees, designed to manage water levels, prevent flooding, or generate hydroelectric power. These barriers influence river ecosystems, sediment transport, and water availability, playing a crucial role in environmental management and urban planning. They can also impact fish migration and sediment flow, requiring careful consideration to balance human needs with ecological health.