The dam with faded Hercules fresco on face
|Owner(s)||Électricité de France|
|Dam and spillways|
|Type of dam||Arch|
|Height||180 m (590 ft)|
|Length||296 m (971 ft)|
|Elevation at crest||1,790 m (5,870 ft)|
|Width (crest)||10 m (33 ft)|
|Width (base)||43.57 m (142.9 ft)|
|Dam volume||632,000 m3 (827,000 cu yd)|
|Creates||Lac du Chevril|
|Total capacity||230,000,000 m3 (186,464 acre⋅ft)|
|Catchment area||171 km2 (66 sq mi)|
|Surface area||2.74 km2 (1 sq mi)|
|Operator(s)||Électricité de France|
|Hydraulic head||Brevieres: 233 m (764 ft)|
Malgovert: 750 m (2,461 ft)
|Turbines||Brevieres: 3 x 32 MW Francis-type |
Malgovert: 4 x 83 MW Pelton-type
|Installed capacity||Brevieres: 96 MW|
Malgovert: 332 MW
The Tignes Dam, also known as the Chevril Dam, is an arch dam on the Isère in the municipality of Tignes in the Rhône-Alpes region in south-eastern France. In planning since the 1920s and under the protest of locals, the dam was constructed between 1948 and 1952 with the purpose of hydroelectric power. At the time of its completion, it was the tallest dam in Europe. Water from the dam's reservoir, Lac du Chevril, feeds two power stations, the 96 MW Brevieres Power Station and the 332 MW Malgovert Power Station, for a total installed capacity of 428 MW. The yearly average combined output of the two power stations is 94 MW 1 km (0.62 mi) downstream of the dam and Malgovert is also located downstream, 17 km (11 mi) to the northwest at . The dam was designed by Coyne & Bellier and is currently owned and operated by Électricité de France. Lac du Chevril flooded the town of Tignes which was relocated nearby.. Brevieres is located about
An arch dam is a concrete dam that is curved upstream in plan. The arch dam is designed so that the force of the water against it, known as hydrostatic pressure, presses against the arch, compressing and strengthening the structure as it pushes into its foundation or abutments. An arch dam is most suitable for narrow canyons or gorges with steep walls of stable rock to support the structure and stresses. Since they are thinner than any other dam type, they require much less construction material, making them economical and practical in remote areas.
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Tignes is a commune in the Tarentaise Valley, in the Savoie department in the Rhône-Alpes region in south-eastern France, known for the highest skiable area in Europe. It is located in the Savoie region with good transport links in and out of Lyon, Geneva and Chambery.
In 1989, in preparation for the 1992 Winter Olympics, Jean-Marie Pierret painted a fresco of the Olympian figure Hercules on the dam's face. The feat, by Pierret and eight other painters, took 60 days.
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Hercules is a Roman hero and god. He was the Roman equivalent of the Greek divine hero Heracles, who was the son of Zeus and the mortal Alcmene. In classical mythology, Hercules is famous for his strength and for his numerous far-ranging adventures.
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|Wikimedia Commons has media related to Tignes Dam .|
Tignes Dam at Structurae . Retrieved 2013-04-24.