Bighorn Dam
Bighorn Dam is an embankment dam in Clearwater County in west-central Alberta, Canada. It was built by Calgary Power in 1972, and led to the creation of Lake Abraham, Alberta's largest reservoir. The dam and associated hydroelectric plant are managed by TransAlta.
Planning of the dam involved no evaluation of the social and environmental effects it may have caused, and no public hearings were held prior to the construction either. The construction of the Bighorn dam flooded the Kootenay Plains and stopped the livelihood of the Bighorn Stoney Indigenous that had lived in that area. It had flooded their cabins, graves and pastures.
The Bighorn Plant is the second largest hydro facility owned by TransAlta, with a capacity of 120 megawatts. However, it has an available water supply that allows it to be the largest producer of hydroelectric energy in Alberta, with an average of each year.
The plant is one of two TransAlta hydroelectric plants on the North Saskatchewan River system in Alberta.
The dam was built in 1972 in the mountain gap at Windy Point, in the Front Ranges of the Canadian Rockies, west of the confluence of the North Saskatchewan River and the Bighorn River.