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Eklutna Power Plant

Eklutna Power Plant
Alaska Heritage Resources Survey
Eklutna Power Plant is located in Alaska
Eklutna Power Plant
Nearest city Anchorage, Alaska
Coordinates 61°27′30″N 149°20′24″W / 61.45833°N 149.34000°W / 61.45833; -149.34000Coordinates: 61°27′30″N 149°20′24″W / 61.45833°N 149.34000°W / 61.45833; -149.34000
Area 20 acres (8.1 ha)
Built 1929 (1929)
Built by Jasper & Stacey Company
NRHP reference # 80000746
AHRS # ANC-118
Significant dates
Added to NRHP June 20, 1980
Designated AHRS October 10, 1976

The Eklutna Power Plant, also referred to as Old Eklutna Power Plant, is a historic hydroelectric power plant on the Eklutna River in Anchorage, Alaska. Located about 5 miles (8.0 km) downstream of the more modern new Eklutna Power Plant, it was built in 1928-29 to provide electrical power to the growing city, and served as its primary power source until 1956. The facilities include two dams, a tunnel and , and a powerhouse. The main dam, Eklutna Dam, located at the northwestern end of Eklutna Lake, was built in 1941 to replace a series of temporary structures built after an earthen dam failed before the plant began operation. The diversion dam, a concrete arch dam, is located 7 miles (11 km) downstream from the lake, and provides facilities for diverting water into the tunnel. The tunnel is 1,900 feet (580 m) long, and is terminated in a penstock, a structure designed to raise the water pressure. The powerhouse is a concrete-and-steel structure completed in 1929.

The power plant was listed on the National Register of Historic Places in 1980.



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