Location
The Lac de Calacuccia is formed by damming the Golo river just south of the village of Calacuccia. It is at an elevation of 793 metres (2,602 ft). The eastern part of the reservoir is in the canton of Calacuccia while the western part is in the commune of Casamaccioli. The northwest of the reservoir, where the Golo enters, is in the commune of Albertacce. Other inflows include the Ruisseau de Lavertacce and Ruisseau de Ruggi from the south, and the Ruisseau di u Mulinellu, Ruisseau de Sialari and Ruisseau de Vergoleilu from the north. [3]
The lake is in the upper Golo valley in the heart of the Niolu region, a wild micro-region of the Parc naturel régional de Corse (Corsica Regional Natural Park). Surrounding peaks include Paglia Orba, Cinque Frati and Monte Cinto. The climate differs from the rest of Corsica due to its position in the center of the island and the surrounding high peaks. Summers are dry but cool, while winters are wet and temperate.
Stormy evening September 2005
North shore low water August 2005
View upstream of dam during high water
Dam
In August 1964 five hundred people led by all the elected representatives of the canton of Corte demonstrated against construction of the dam. They proclaimed "their fierce determination to oppose by all means in their power to the realization of this project, which, in its current conception, would lead to the ruin of the valley of their ancestors and cradle of their children". The dam would submerge 140 hectares (350 acres) of land, or which a quarter was planted with gardens and orchards. However, in January 1964 the departmental assembly had voted 52 to 5 in favour of the concessions requested by Électricité de France and the semi-public Société d'aménagement pour la mise en valeur de la Corse (Somivac) for the agricultural development of Corsica.
The Barrage de Calacuccia is a multiple arch dam used for hydroelectricity. The concrete dam was built between 1965 and 1968. It came into service in 1968. It has a crest length of 265 metres (869 ft) and crest altitude of 794 metres (2,605 ft). It has an estimated hydraulic head of 74 metres (243 ft) at low water. [11] The dam impounds 23,400,000 cubic metres (830,000,000 cu ft) of water. The lake covers 119.6 hectares (296 acres) and is fed by a 127 square kilometres (49 sq mi) watershed. Fish cannot pass the dam. [11]
The water is fed to turbines in two power plants in Corscia and Castirla, then returned to the Golo. The Barrage de Calacuccia is the most powerful hydroelectric facility in Corsica, generating 57 MW of the total 199 MW produced by hydroelectricity on the island. It provides 10% of the electricity consumed in Corsica. Every year 25,000,000 cubic metres (880,000,000 cu ft) of water are allocated to irrigation of cultivated land. Somivac takes the water at a dam at Prunelli-di-Casacconi, 40 kilometres (25 mi) downstream from the Calacuccia dam, to feed a network of pipes that supports irrigation of 10,000 hectares (25,000 acres) of land in the Bastia plains.
Alesani Reservoir or Alesani Lake is a reservoir in the Haute-Corse department of France formed in 1970 by damming the Alesani River with the Alesani Dam. It is the main source of irrigation water along the east coast of Haute-Corse, and it also supplies water for human consumption and for hydroelectric power generation.
The Lac de l'Argentella is a reservoir in the Haute-Corse department of Corsica, France. It was built in the 1870s to supply water to the ore processing plant of the Argentella mines, which refined silver and copper ore extracted from the nearby Capu di l'Argentella. After a few years the ore supply became uneconomical, and eventually the mines were closed in the 1930s. Recently there has been discussion on what to do with the aging dam. It stores water in a dry region, but may be unsafe.
The Sampolo Reservoir is a reservoir in the Haute-Corse department of Corsica, France. It is formed by damming the Fiumorbo river by the Barrage du Sampolo. The reservoir provides hydroelectricity and water for irrigation. The gallery of the dam is home to important bat colonies.
The Fiumorbo is a coastal river in the department of Haute-Corse, Corsica, France. It is dammed in two places to supply irrigation water and hydroelectricity. Between the two dams it runs through the spectacular Défilé de l’Inzecca, a Natura 2000 site.
Lac de Calca Tavulaghjiu is a reservoir in the Haute-Corse department of France.
Codole Reservoir is a reservoir in the Haute-Corse department of France, on the island of Corsica. It supplies water for drinking and irrigation. The reservoir and its immediate surroundings are important as a biotope that offers habitat for many species of birds, reptiles and amphibians
The Regino River is a small coastal river in the department of Haute-Corse, Corsica, France.
The Erco is a stream in the department of Haute-Corse, Corsica, France. It is a tributary of the Golo.
The Barrage de Corscia is a dam in the Haute-Corse department of France on the Golo river. It impounds an intermediate reservoir in the Golo hydroelectric complex. The Corscia hydroelectric power station fed by water channeled from Lac de Calacuccia has a capacity of 13 mW and discharges into the Corscia reservoir. Downstream from the Corscia reservoir there is another power station at Castirla.
The Alzitone Reservoir is a reservoir in the Haute-Corse department of France. It dams the Pedocchino stream, but most of the water is supplied from the Réservoir de Trévadine on the Fiumorbo river. It supplies water for drinking and for irrigation, which during the summer low water is delivered using a pumping station.
The Ortolo Reservoir is a reservoir in the Corse-du-Sud department of France on the island of Corsica.
The Rizzanese Reservoir is a reservoir in the Corse-du-Sud department of France on the island of Corsica. It stores water for irrigation, and supplies the largest hydroelectric power plant in Corsica, with installed capacity of 55 MW.
The Ospedale Reservoir is a reservoir in the Corse-du-Sud department of France on the island of Corsica. It holds drinking water for the southeast of the island, including Porto-Vecchio. It is surrounded by a forest that has been designated a Zone naturelle d'intérêt écologique, faunistique et floristique (ZNIEFF).
The Figari Reservoir is a reservoir in the Corse-du-Sud department of France on the island of Corsica. It provides water for irrigation and human consumption.
The Lac de Tolla is a reservoir in the Corse-du-Sud department of France on the island of Corsica. It is the largest lake on Corsica, and powers a hydroelectric plant.
Bacciana Reservoir is a reservoir in the Haute-Corse department of France, on the island of Corsica. It supplies water for drinking and irrigation.
Teppe Rosse Reservoir is a reservoir in the Haute-Corse department of France, on the island of Corsica. It supplies water for drinking and irrigation.
Trévadine Reservoir is a reservoir in the Haute-Corse department of France, on the island of Corsica. It stores water for drinking and irrigation, which is fed to reservoirs in the coastal plain.
Peri Reservoir is a reservoir in the Haute-Corse department of France, on the island of Corsica. It supplies water for drinking and irrigation to the central section of the eastern plain of Corsica. In peak periods it also supplies water to the southern section.
The Prunelli is a small coastal river in the department of Corse-du-Sud, Corsica, France. It flows into the Golfe d'Ajaccio on the Mediterranean Sea.
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