Diablo Dam - Credit: Wikimedia Commons
Diablo Dam - Credit: Wikimedia Commons
Diablo Dam is one of three dams along the upper Skagit River in Whatcom County, Washington and part of the Skagit River Hydroelectric Project that supplies Seattle with some of its power needs. The dam was built in Diablo Canyon, a gorge of solid granite with vertical walls rising from the river bed, yet were less than apart. Construction began in 1927, and was completed in 1930. The dam began generating electricity in 1936. Includes construction photos. Read more on Wikipedia
Source: en.wikipedia.org