Tucuruí Dam

Tucuruí Dam

18. 9. 2022 0 By toner

Tucuruí Dam

Tucuruí Dam is a hydroelectric power plant located in Brazil on the Tocantins River. The total length of the dam is 12.5 kilometers including auxiliary dams, the main part is then 6.9 kilometers long.

The dam is partly concrete and partly sprinkled. The broken concrete part consists of a spillway dam and two dams with power plants. The dam is 78 meters high above the terrain, but if we include the depth of the foundations, its total height is then 106 meters. The lake, which was created by damming, has an area of 2,850 km2 and a volume of 45.5 km3.

The first power plant, which is located between the spillway part and the second of the power plants, has installed 12 units with an output of 350 MW and two smaller operating units with an output of 2 x 22.5 MW. The second-generation power plant  has 11 units installed, but in this case with an output of 375 MW.

technical parameters Tucuruí Dam

 

Name Usina Hidrelétrica de Tucuruí
Location Tucuruí, Pará, Brazil
Construction cost $5.5 billion, $7.5 with accrued interest
Operator Eletronorte
Construction began 1975
Opening date 1984
Type of dam Concrete gravity
Length
  • 12.5 km (7.8 mi)
  • Main dam:6.9 km
Height 78 m (256 ft)
Impounds Tocantins River
Spillway capacity 110,000 m3/s (3,900,000 cu ft/s)
Spillway type Service, Creager-type, gate-controlled
Reservoir capacity 45 km3 (36,000,000 acre⋅ft)
Surface area 2,850 km2 (1,100 sq mi)
Max. water depth 72 m (236 ft)
Turbines
  • 12 x 350 MW (470,000 hp)
  • 11 x 375 MW (503,000 hp)
  • 2 x 22.5 MW (30,200 hp)
Annual generation 21.4 TWh (77 PJ)
Installed capacity 8,370 MW (11,220,000 hp)

Tucuruí Dam

Hidrelétrica de Tucuruí