Noxon Rapids Dam

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.

Noxon Rapids Dam
Aerial view of the reservoir and dam
Location	Sanders County, Montana
Construction began	1955[1]
Opening date	1959[2]
Construction cost	$85 million[3]
Operator(s)	Avista
Dam and spillways
Impounds	Clark Fork
Height	260 ft (79 m)[4]
Length	5,840 ft (1,780 m)[5]
Reservoir
Creates	Noxon Reservoir
Total capacity	400,000 acre-feet (490,000,000 m3)[5]
Catchment area	21,800 sq mi (56,500 km²)[5]
Surface area	7,700 acres (3,100 hectares)[6]
Power Station
Operator(s)	Avista
Turbines	5[7]
Installed capacity	527 MW[7]

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 Dam at full turbine flow and full pool is 527 MW.^[8] The project is owned and operated by Avista.

See also

• Water portal
• Renewable energy portal

• List of dams in the Columbia River watershed