Black Eagle Dam - Credit: Wikimedia Commons
Black Eagle Dam - Credit: Wikimedia Commons
Black Eagle Dam is a hydroelectric gravity weir dam located on the Missouri River in the city of Great Falls, Montana."Black Eagle Falls (Black Eagle Dam) is the only one in the city." See: "Great Falls Scores a Number of Firsts in Montana." Great Falls Tribune. March 20, 2005. The first dam on the site, built and opened in 1890, was a timber-and-rock crib dam.Peterson, p. 59. This structure was the first hydroelectric dam built in MontanaMarcosson, p. 145; Holmes, Dailey, and Walter, p. 397. and the first built on the Missouri River. The dam helped give the city of Great Falls the nickname "The Electric City.""City's Past Rooted in the River That Runs Through It." Great Falls Tribune. March 24, 2002. A second dam, built of concrete in 1926 and opened in 1927, replaced the first dam, which was not removed and lies submerged in the reservoir. Almost unchanged since 1926, the dam is long and high,PPL Montana, Form S-4, p. A-23. and its powerhouse contains three turbines capable of generating seven megawatts (MW) of power each. The maximum power output of the dam is 18 MW. Montana Power Company built the second dam, PPL Corporation purchased it in 1997 and sold it to NorthWestern Corporation in 2014. The reservoir behind the dam has no official name, but was called the Long Pool for many years.Peterson, p. 116. The reservoir is about long,Peterson, p. 82. and has a storage capacity of "Black Eagle Dam," PPL Montana, 2011. Accessed 2011-04-05. to of water."The FERC order issuing a new license dated September 27, 2000, states that the Black Eagle reservoir has a storage capacity of 1820 AF at normal maximum water surface elevation of 3290 feet." See: Water Right Solutions, Inc., p. 4. Read more on Wikipedia
Source: en.wikipedia.org