alcoa.com

Alcoa in Brazil
Hydroelectrics 
Barra Grande
The environment
Community
Main features
Estreito
Machadinho
Serra do Facão

Location
Located on the Pelotas River, between Anita Garibaldi (SC) and Pinhal da Serra (RS)
Municipality on the right bank: Anita Garibaldi(SC)
Municipality on the left bank: Pinhal da Serra (RS)
Start of work: July, 2001
Conclusion: May, 2006

Reservoir
Total area: 94 km2 

Dam
Type of structure / material: junction dam, faced with concrete
Height: 185 m. 
Length: 665 m.
Base: 500 m. wide
Top: 11 m. wide

Socio-environmental activities
Families resettled and awarded compensation: 1.520
Awarded compensation: 959
Resettled: 561

Spillway
Type: surface
Height: 21 m.
Width: 15 m.
Number of sluice gates: 6
Maximum probable outflow: 23.84 m3 per second

Intake channel
Length: 24.3 m. 
Height: 52.3 m. 
Number of individual intakes: 3

Diversion tunnels
Number: 2 
Length: 864 and 935 m. 
Height: 17 m. (both)

Energy
Power of the hydro-station: 708 MW
Installed capacity: 696 MW
Guaranteed power: 380 MW
Turbines: 3
First turbine started generating: November, 2005
Second turbine started generating: February, 2006
Final turbine started generating: May, 2006
Power per unit: 236 MW

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