Site C dam

Site C
Dam construction as of April 2017
Site C
Location of Site C in British Columbia
Official nameSite C Project
LocationBritish Columbia, Canada
Coordinates56°11′41″N 120°54′51″W / 56.19472°N 120.91417°W / 56.19472; -120.91417
StatusOperational
Opening date2025
Construction costC$16 billion, February 2021 estimate
OwnerBC Hydro
Dam and spillways
Type of damEarth fill
ImpoundsPeace River
Height60 m (200 ft)
Length1,050 m (3,440 ft)
Reservoir
Surface area9,330 ha (23,100 acres)
Power Station
Installed capacity1,230 MW
Annual generation4,600 GWh

The Site C Dam is a hydroelectric dam on the Peace River, 14 kilometres southwest of Fort St. John in northeastern British Columbia, Canada. It is located approximately 80 kilometres downstream from the W. A. C. Bennett Dam. Completed in 2025, it is the fourth largest producer of hydroelectricity in British Columbia, with an expected capacity of 1,230 MW and an expected annual output of 4,600 GWh of electricity.

A publicly accessible viewpoint is located immediately west of the City of Fort St. John, on the south side of Highway 97.

The project has drawn considerable opposition from several quarters due to its planned flooding of agricultural land, damage to the local environment, high construction cost, possible alternatives, and the uncertainty of future electricity prices and demand in the province. Two Treaty 8 First Nations and local landowners made legal challenges to the dam, though these were dismissed by the Federal Court of Appeal. In addition, over 200 scholars, as well as the Royal Society of Canada, expressed concerns to the federal Liberal government, citing weakness in the regulatory review process and the environmental assessment for the project. In May 2016, the federal government of Canada stated it is "not revisiting projects that have been reviewed and approved". On 11 December 2017, John Horgan, the premier of British Columbia, announced: "We've come to a conclusion that, although Site C is not the project we would have favoured or would have started, it must be completed", thus guaranteeing the completion of the project. On 8 November 2024, BC Hydro announced that the reservoir was full and that the first generator was operational.