Lajoie Dam

Lajoie Dam
Lajoie Dam is located in British Columbia
Lajoie Dam
Lajoie Dam
Location within British Columbia
CountryCanada
LocationNear Gold Bridge, BC
Coordinates50°50′06″N 122°51′32″W / 50.835°N 122.859°W / 50.835; -122.859
PurposeHydroelectricity, Storage
StatusActive
Opening date1948 (raised 1955)
OwnerBC Hydro
Dam and spillways
Type of damEarth-fill
ImpoundsBridge River
Height (foundation)87 m
Reservoir
CreatesDownton Lake
Total capacity700,000,000 m³
Lajoie Powerhouse
Installed capacity22 MW
Annual generation170 GWh
Lajoie Dam Under Construction, 1950s. E. Cleven Photo, aerial

Lajoie Dam is the uppermost of the storage dams of BC Hydro's Bridge River Power Project, which is located in the southwestern Interior of British Columbia. It is located just west of the small semi-ghost town of Gold Bridge. An earthfill structure, it is 87 m (287 ft) and impounds c. 570,000 acre-feet (700,000,000 m3) of water in Downton Lake Reservoir. The Lajoie Powerhouse generates 22 MW with an average generating capacity of 170 GWh/year. A few miles downstream is Carpenter Lake, which is formed by Terzaghi Dam, the largest of the Bridge River Power Project's structures.

Downton Reservoir is named for Geoffrey M. Downton, a pioneer surveyor who was the first to recognize the hydroelectric potential in the drop in elevation between the Bridge and Seton river systems. Lajoie Dam and Powerhouse are atop the site of Lajoie Falls, which was named after Lazack Lajoie, a local "mountain man" and entrepreneur-huckster who promoted a townsite and mining complex around Gun Lake which never came to fruition.

References

  • Water Powers, British Columbia, BC Dept of Lands and Forests Water Rights Branch, Victoria 1954