Daniel-Johnson Dam, Arch dam in Rivière-aux-Outardes, Canada
The Daniel-Johnson Dam spans 1,314 meters across the Manicouagan River with fourteen buttresses and thirteen arches reaching a height of 214 meters.
Construction began in 1959 after Hydro-Québec initiated studies to meet increasing electricity demands, leading to the development of multiple dams on Manicouagan River.
Engineers selected a multiple-arch buttress design by French civil engineer André Coyne, establishing new standards for hydroelectric infrastructure in North America.
The facility provides guided tours in French and English during summer months, with free admission and parking spaces for cars, buses, and motor homes.
The dam creates the Manicouagan Reservoir, which encircles René-Levasseur Island, forming the second largest lake island on Earth.
Location: Rivière-aux-Outardes
Inception: 1968
Height: 214 m
GPS coordinates: 50.64667,-68.72444
Latest update: May 27, 2025 13:24
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