Snoqualmie Falls Hydroelectric Project No. 2493 (Snoqualmie Project) is located on the Snoqualmie River, in Snoqualmie, Washington. The Snoqualmie Project consists of a diversion dam located 150 feet upstream from Snoqualmie Falls, and two powerhouses (Plants 1 and 2) with a total installed capacity of 44.4 MW. Snoqualmie Plant 1 was originally constructed in 1898 and contains the world's first completely underground powerhouse, built in a cavity 270 feet below Snoqualmie Falls. Snoqualmie Plant 2, about ¼ a mile downstream from Plant 1, was built in 1910 and expanded in 1957.
Snoqualmie Project Licensing
The original license for the Snoqualmie Project was issued on May 13, 1975, effective as of March 1, 1956. That license expired on December 31, 1993. PSE filed the Snoqualmie Project license application with FERC on November 25, 1991. FERC issued the new 40-year license on June 29, 2004. For more information regarding the Snoqualmie Project, please contact Connie Freeland, Licensing Program Manager, at (425) 462-3556.