Cochrane Dam

Not to be confused with Cochrane Dam (New South Wales).

Cochrane Dam is a run-of-the river hydroelectric dam on the Missouri River, about 8 miles (13 km) northeast of Great Falls in the U.S. state of Montana.^[2] The dam has a concrete gravity design and is 59 feet (18 m) high and 753 feet (230 m) long. Its power station has two generators capable of producing 64 megawatts. Construction of the dam was finished in 1958.^[3] Montana Power Company originally built the dam, PPL Corporation purchased it in 1997 and sold it to NorthWestern Corporation in 2014.

Cochrane Dam
Location of Cochrane Dam in Montana
Country	United States of America
Location	Cascade County, Montana
Coordinates	47°33′11″N 111°08′56″W
Status	In use
Opening date	1958
Owner(s)	NorthWestern Corporation
Dam and spillways
Type of dam	Concrete gravity
Impounds	Missouri River
Height	59 ft (18 m)
Length	753 ft (230 m)
Spillways	1
Spillway type	Gated service
Reservoir
Creates	Cochrane Lake
Total capacity	2,700 acre⋅ft (3,300,000 m3)
Catchment area	24,000 sq mi (62,000 km2)
Surface area	218 acres (88 ha)
Power Station
Turbines	2
Installed capacity	64 MW
Annual generation	298,390,000 KWh (2009)[1]