| Lac de Tolla | |
|---|---|
 Tolla village and lake | |
  Lac de Tolla  Lac de Tolla | |
| Location | Corse-du-Sud, Corsica |
| Coordinates | 41°58′06″N8°58′38″E / 41.9683°N 8.9771°E Coordinates: 41°58′06″N8°58′38″E / 41.9683°N 8.9771°E |
| Type | Lake |
| Basin countries | France |
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.
The Lac de Tolla is formed by a dam (Barrage de Tolla) on the Prunelli river. The Ruisseau d'Agnone and the Ese River also empty into the lake. It is in the commune of Tolla just south of the village of Tolla. The D3 road runs along its north shore. [1] Lake Tolla is at an altitude of 550 metres (1,800 ft). There is a belvedere on the heights above the lake from which the dam can be seen. [2] It is less than an hour's drive away from Ajaccio. [3]
The Barrage de Tolla was built between 1958 and 1960, and was commissioned in 1965. [3] It is owned and operated by Électricité de France (EDF). It is a gravity dam 87 metres (285 ft) high and 120 metres (390 ft) long with a crest elevation of 563 metres (1,847 ft). It impounds 34,740,000 cubic metres (1.227×109 cu ft) of water. [4]
Between 3 November and 20 December 90,000,000 cubic metres (3.2×109 cu ft) of water entered the reservoir, three times its capacity. Typically the reservoir would receive five times its capacity of water each year. On 20 December 2019 the Fabien storm caused the dam to overflow, but the structure was not damaged. When producing the maximum amount of electricity the dam releases 11 cubic metres (390 cu ft) of water per second. At the time of the flood the inflow was 20 cubic metres (710 cu ft) per second. [5]
The reservoir covers 5 square kilometres (1.9 sq mi). [3] It is fed by a watershed of 132 square kilometres (51 sq mi). [4] The lake is popular with tourists in the summer from June to September. Swimming, kayaking, paddling, etc. are allowed, but motorized boats are not allowed. Anglers may fish for pike, pike perch, perch, carp, roach and catfish. [3]
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 Calacuccia is a reservoir in the Haute-Corse department of France formed by damming the Golo river. It provides hydroelectric power and water for irrigation in the dry season.
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
Lac de Padula is a reservoir in the Haute-Corse department of France, on the island of Corsica. It was built to supply water for irrigation and firefighting, but now also provides drinking water during the summer tourist peak.
The Regino River is a small coastal river in the department of Haute-Corse, Corsica, France.
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 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.
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.
The Ese is a river in the department of Corse-du-Sud, Corsica, France. It is a tributary of the Prunelli river, which it joins in the Lac de Tolla.
The Ortolo is a coastal river in the southwest of the department of Corse-du-Sud, Corsica, France. It is dammed to store water for irrigation.
