Manicouagan Reservoir
The Manicouagan Reservoir ( French Réservoir Manicouagan, also called Lac Manicouagan ) is an annular lake within an impact crater in the Canadian province of Québec. It is located about 800 kilometers northeast of Montreal and 214 kilometers north of Baie- Comeau, its area is 1942 km ². Tributaries include the Rivière Mouchalagane, the Rivière Thémines, the Rivière Rivière Hart Jaune Seignelay and. Outflow is the Rivière Manicouagan, which flows south to the estuary of the St. Lawrence River.
Crater
The ring-shaped lake formed within the ring structure of an impact crater. This was before about 215 million years ago by the impact of a meteorite with a diameter of about five kilometers. The impact is not, as previously believed, responsible for the mass extinction at the Triassic - Jurassic boundary, since this event took place about twelve million years later. Logging was the meteorite left a crater with a diameter of about 100 kilometers, of which only 72 kilometers are left today due to sedimentation and erosion. In the ring, the center of the lake is the 2020 km ² large René- Levasseur Island. Its highest point is the 952 meter high Mont Babel, an incurred by isostasy central mountain.
Reservoir
In the 1960s, the lake was about 60 km south of the ring transformed by the construction of a dam in a reservoir to generate electrical energy from hydropower. The water surface of the lake is 1942 km ² in size at normal storage level, located at 301.75 meters above sea level. Its maximum storage capacity includes 141.852 billion cubic meters (142 cubic kilometers ). This is partly, of course, and only additionally dammed. The lake is up to 350 meters deep. The dam is one of the largest in the world, as measured by the storage space it is currently in 6th place
Power plants
The Daniel -Johnson Dam ( Barrage Daniel - Johnson) is 1314 meters long and with a height of 214 meters the world's tallest buttress dam. It is located at ( 50 ° 38 ' 49 "N, 68 ° 43' 27" W50.646944444444 - 68.724166666667 ). Your exact type is that of a multiple - arch dam.
Are located on the dam two hydropower plants with a total capacity of 2660 megawatts hydroelectric power plant Manic -5 ( 50 ° 38 ' 23 " N, 68 ° 43' 37 " W50.639722222222 - 68.726944444444 ) with eight turbines and a capacity of 1596 megawatts ( built in 1970 ) and the adjacent hydroelectric plant Manic -5 -PA ( 50 ° 38 ' 26 " N, 68 ° 44' 13" W50.640555555556 - 68.736944444444 ) with four turbines and a capacity of 1064 megawatts (built in 1989).