Webster Reservoir
General data
- Name: Webster Reservoir
- Water system: Missouri River
- Water type: Artificial lake
- Progression: South Fork Solomon River -> Waconda Lake (Glen Elder) -> Solomon River (Kansas) -> Smoky Hill River -> Kansas River -> Missouri River -> Mississippi River -> Gulf of Mexico -> Atlantic Ocean -> Planet Earth
- Climates: Temperate
- Continents: North America
- Countries: United States of America
Webster Reservoir is a reservoir in Rooks County, Kansas, United States. Built and managed by the U.S. Bureau of Reclamation, it is used for flood control, irrigation, and recreation. Webster State Park is located on its shore. The surface area, surface elevation, and water volume of the reservoir fluctuate based on inflow and local climatic conditions. In terms of capacity, the Bureau of Reclamation vertically divides the reservoir into a set of pools based on volume and water level, and it considers the reservoir full when filled to the capacity of its active conservation pool. When full, Webster Reservoir has a surface area of 15.24 km2, a surface elevation of 577 m, and a volume of 93,938,000 m3. When filled to maximum capacity, it has a surface area of 45.6 km2, a surface elevation of 591 m, and a volume of 493,913,000 m3.