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Noxon Rapids Dam is an earthfill gravity-type hydroelectric dam on the Clark Fork river, in the northwest part of the U.S. state of Montana. The dam is located in the far northwest of Montana near the Idaho border. Downriver of Noxon Rapids Dam the Clark Fork is again impounded by the Cabinet Gorge Dam. The operating capacity of Noxon Rapids ...
Following is a list of dams and reservoirs in Montana. All major dams are linked below. The National Inventory of Dams defines any "major dam" as being 50 feet (15 m) tall with a storage capacity of at least 5,000 acre-feet (6,200,000 m 3 ), or of any height with a storage capacity of 25,000 acre-feet (31,000,000 m 3 ).
The dam and the 134-mile-long (216 km) lake are owned and operated by the U.S. Army Corps of Engineers and exist for the purposes of hydroelectric power generation, flood control, and water quality management. [4] The dam presently has a nameplate capacity of 185.25 megawatts, divided among 5 generating units (which in turn are divided between ...
This category contains articles about hydroelectric power plants in the U.S. state of Montana. Pages in category "Hydroelectric power plants in Montana" The following 13 pages are in this category, out of 13 total.
In 2003 the State of Montana, through its Natural Resource Damage Program, drafted a conceptual plan for the restoration of the Milltown Dam site. [8] In December 2004, the final remediation plan was released by the EPA, calling for the removal of more than two million cubic yards of contaminated sediment and the removal of the Milltown Dam. [9]
Hauser Dam (also known as Hauser Lake Dam) is a hydroelectric straight gravity dam on the Missouri River about 14 miles (23 km) northeast of Helena, Montana, in the United States. The original dam, built between 1905 and 1907, failed in 1908 and caused severe flooding and damage downstream.
The Yellowtail Afterbay dam, built for the purpose of regulating the fluctuating discharge from the power station, lies 2.2 miles (3.5 km) below the main dam and can store 3,140 acre-feet (3,870,000 m 3) of water. This dam generally releases a constant flow of 2,500 to 3,000 cubic feet per second (71 to 85 m 3 /s) into the Bighorn. [8] [13]
Montana Power Company acquired the dam in 1912 as part of a merger, PPL Corporation purchased it in 1997 and sold it to NorthWestern Corporation in 2014. The reservoir it creates, Ennis Lake , is 2.6 miles (4.2 km) long and has a maximum storage capacity of 42,053 acre-foot (51,872,000 m 3 ). [ 2 ]