Robert-Bourassa Reservoir
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Robert-Bourassa Reservoir | |
---|---|
Location | Jamésie Territory, Quebec |
Coordinates | |
Lake type | Artificial |
Primary inflows | La Grande River |
Primary outflows | La Grande River |
Basin countries | Canada |
Surface area | 2,835 km² (1,095 sq mi) |
Water volume | 61.7 km³ (14.8 mile³) |
Surface elevation | 175 m (570 ft) |
The Robert-Bourassa Reservoir (in French: Réservoir Robert-Bourassa) is a man-made lake in northern Quebec, Canada. It was created as part of the James Bay Project and provides the needed water for the Robert-Bourassa and La Grande-2-A generating stations. It has a surface area of 2,835 km² (1,095 mile²), has an estimated volume of 61.7 km³ (14.8 mile³), and a surface elevation between 168 m (551 ft) and 175 m (574 ft)[1].
The reservoir is formed behind the Robert-Bourassa Dam that was built across a valley of the La Grande River. This dam was constructed from 1974 to 1978, is 550 m (1,800 ft) wide at its base, and has 23 million m³ (30 million yd³) of fill[2]. There are another 31 smaller dikes keeping the water inside the reservoir.