Daniel-Johnson dam

About Daniel-Johnson dam

The Manic-5 generating station, the Manic-5-PA generating station and the Daniel-Johnson dam are a Hydro-Québec hydroelectric development located on the North Shore of Quebec, on the Manicouagan River, 214 km north of the city of Baie-Comeau.
50° 38′ 49″ N, 68° 43′ 35″ O

At 214 m high, with a crest length of 1,314 m, with 13 arches and 14 buttresses, the dam is the largest multi-arch and buttress dam in the world. Inaugurated in 1968 and commissioned in 1970 as part of the Manic-Outardes project, it has a head of 150 m and the total installed power of the two power stations is 2,660 MW.

The 1,314 m wide dam is built across the valley of the Manicouagan River. Its summit is 366 meters above sea level. It required more than 2 million cubic meters of concrete for its construction