ALASKA RESERVOIR REPORT

Last Updated: December 20, 2025

Alaska has over 1,000 named lakes and reservoirs, with the largest ones being used for hydroelectric power generation, flood control, and water supply. The major reservoirs include Eklutna Lake, Chena Lake, and the Bradley Lake Reservoir, which are fed by glaciers, snowmelt, and several rivers and creeks. The snowpack in the mountains is a vital source of water, and the timing of its melting affects the streamflow and reservoir levels. The hydrology in the area is complex, with various geological formations and climatic patterns. Alaska has experienced record-high temperatures and drought conditions in recent years, leading to reduced water availability in some areas. However, the seasonal trends, such as the increased precipitation during the summer months and the snow accumulation during the winter, generally ensure sufficient water supply for the state's needs.

Alaska has over 1,000 named lakes and reservoirs, with the largest ones being used for hydroelectric power generation, flood control, and water supply. The major reservoirs include Eklutna Lake, Chena Lake, and the Bradley Lake Reservoir, which are fed by glaciers, snowmelt, and several rivers and creeks. The snowpack in the mountains is a vital source of water, and the timing of its melting affects the streamflow and reservoir levels. The hydrology in the area is complex, with various geological formations and climatic patterns. Alaska has experienced record-high temperatures and drought conditions in recent years, leading to reduced water availability in some areas. However, the seasonal trends, such as the increased precipitation during the summer months and the snow accumulation during the winter, generally ensure sufficient water supply for the state's needs.