Tignes Dam

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Tignes Dam
Barrage de Tignes France.jpg
The dam with faded Hercules fresco on face
France relief location map.jpg
Red pog.svg
Location of Tignes Dam in France
Country France
Location Tignes
Coordinates 45°29′40.82″N6°55′54.47″E / 45.4946722°N 6.9317972°E / 45.4946722; 6.9317972 Coordinates: 45°29′40.82″N6°55′54.47″E / 45.4946722°N 6.9317972°E / 45.4946722; 6.9317972
PurposePower
StatusOperational
Construction began1948
Opening date1952
Owner(s) Électricité de France
Dam and spillways
Type of dam Arch
Impounds Isère
Height180 m (590 ft)
Length296 m (971 ft)
Elevation at crest1,790 m (5,870 ft)
Width (crest)10 m (33 ft)
Width (base)43.57 m (142.9 ft)
Dam volume632,000 m3 (827,000 cu yd)
Reservoir
Creates Lac du Chevril
Total capacity230,000,000 m3 (186,464 acre⋅ft)
Catchment area 171 km2 (66 sq mi)
Surface area2.74 km2 (1 sq mi)
Power Station
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 [1]

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 [2] . Brevieres is located about 1 km (0.62 mi) downstream of the dam and Malgovert is also located downstream, 17 km (11 mi) to the northwest at 45°37′04.28″N6°47′25.31″E / 45.6178556°N 6.7903639°E / 45.6178556; 6.7903639 (Malgovert Power Station) . The dam was designed by Coyne & Bellier and is currently owned and operated by Électricité de France. [3] Lac du Chevril flooded the town of Tignes which was relocated nearby.

Arch dam solid dam made of concrete that is curved upstream in plan

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.

Isère (river) river in France

The Isère is a river in the Auvergne-Rhône-Alpes region of southeastern France. Its source, a glacier known as the Sources de l'Isère, lies in the Vanoise National Park in the Graian Alps of Savoie, near the ski resort Val d'Isère on the border with Italy. An important left-bank tributary of the Rhône, the Isère merges with it a few kilometers north of Valence.

Tignes Commune in Auvergne-Rhône-Alpes, France

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.

Contents

View of the dam taken from the Lac Du Chevril side View from Lac Du Chevril.jpg
View of the dam taken from the Lac Du Chevril side

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. [4]

1992 Winter Olympics 16th edition of Winter Olympics, held in Albertville (France) in 1992

The 1992 Winter Olympics, officially known as the XVI Olympic Winter Games, were a winter multi-sport event celebrated from 8 to 23 February 1992 in Albertville, France. They were the last Winter Olympics to be held the same year as the Summer Olympics, and the first where the Winter Paralympics were held at the same site. Albertville was selected as host in 1986, beating Sofia, Falun, Lillehammer, Cortina d'Ampezzo, Anchorage and Berchtesgaden. The games were the third Winter Olympics held in France, after Chamonix in 1924 and Grenoble in 1968, and the fifth Olympics overall in the country.

Hercules Roman adaptation of the Greek divine hero Heracles

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.

The dam plays an important part in the French supernatural drama television series The Returned .

See also

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References

  1. "Rhône-Alpes -Tignes-Malgovert" (in French). Hydrelect. Retrieved 25 April 2013.
  2. "EDF INVESTS IN THE MAINTENANCE AND MODERNISATION OF THE TIGNES-ALGOVERT HYDROELECTRIC COMPLEX" (PDF).
  3. "Tignes Dam". Structurae. Retrieved 25 April 2013.
  4. Weber, Bruce (5 November 1989). "WORKS IN PROGRESS; That Dammed Hercules By Bruce Weber". New York Times. Retrieved 25 April 2013.
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Tignes Dam at Structurae . Retrieved 2013-04-24.