Soda Springs P-1927

by | Mar 2, 2021

The North Umpqua Project was constructed between 1947 and 1956. It consists of a series of dams and canals that divert water to the eight developments, each of which has a powerhouse and a dam. The Soda Springs Development includes a 77-foot-high diversion dam located...

LaGrande P-1862

by | Mar 2, 2021

The Nisqually Hydroelectric Project includes Alder Dam and La Grande Dam on the Nisqually River. The first hydropower project was constructed in 1912 and replaced by the current two-dam project in 1945.

Merwin P-935

by | Mar 2, 2021

The Merwin Project (P-935) obtained its license in combination with three other projects: Swift No. 1 (P-2111), Yale Project (P-2071), and Swift No. 2 (P-2213). Collectively, these projects have once license and are known as Lewis River Projects. The Merwin Project is...

Swan Falls P-503

by | Mar 2, 2021

The project is located on the Snake River, in Ada and Owyhee Counties, Idaho in the southwestern portion of the Snake River Plain. The Project consists of a 1,218-foot-long, 88-foot-high concrete gravity and rock-fill dam. The Swan Falls Project reservoir is a...