São Simão Dam

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São Simão Dam
São Simão Dam is located in Brazil
São Simão Dam
Location of São Simão Dam in Brazil
Official name Usina de São Simão
Location São Simão, Goiás/Minas Gerais, Brazil
Coordinates 19°1′9″S 50°30′1″W / 19.01917°S 50.50028°W / -19.01917; -50.50028Coordinates: 19°1′9″S 50°30′1″W / 19.01917°S 50.50028°W / -19.01917; -50.50028
Opening date 1978
Owner(s) CEMIG
Dam and spillways
Type of dam Embankment, concrete portion
Impounds Paranaíba River
Height 127 m (417 ft)
Length 3,600 m (11,800 ft)
Spillway type Service, gate-controlled
Creates São Simão Reservoir
Total capacity 12.5 km3 (10,100,000 acre·ft)
Surface area 703 km2 (271 sq mi)
Power station
Commission date 1978-1979
Type Conventional
Turbines 6 x Francis turbines
Installed capacity 1,710 MW (2,290,000 hp)
Annual generation 12.5×10^6 MWh (45,000,000 GJ) (2008)

The São Simão Dam is an embankment dam on the Paranaíba River near São Simão in Goiás/Minas Gerais, Brazil. It was constructed for hydroelectric power production and flood control. The dam was completed in 1978 and all generators were operational by 1979. In 1977, the first use of roller compacted concrete in Brazilian dam construction occurred on the São Simão.[1]


The dam is 3,600 metres (11,800 ft) long and 127 metres (417 ft) high embankment dam with concrete spillway and power plant sections.


The dam's reservoir has a surface area of 703 square kilometres (271 sq mi) and a capacity of 12.5 cubic kilometres (10,100,000 acre·ft) of which 5.54 cubic kilometres (4,490,000 acre·ft) is live.

São Simão Hydroelectric Power Plant[edit]

The dam's power station contains six 285 megawatts (382,000 hp) generators powered by Francis turbines for a total installed capacity of 1,710 megawatts (2,290,000 hp).[2][3] There is additional room for four more generators in the power stations but there are no plans to have them installed currently.[4]

See also[edit]


  1. ^ Brazilian Experience of Roller Compact Concrete. Swets and Zeitleiger. 2003. p. 267. Retrieved 19 September 2010. 
  2. ^ "Plant - Sao Simao" (in Portuguese). CEMIG. Retrieved 19 September 2010. 
  3. ^ "Sao Simao Hydroelectric Plant - Goiás" (in Portuguese). Pontos BR. Retrieved 19 September 2010. 
  4. ^ "Hydroelectric Plants in Brazil - Minas Gerais". IndustCards. Retrieved 19 September 2010.