Luiz Barreto Dam

Luiz Barreto Dam
Luiz Barreto Dam
	Location of Luiz Barreto Dam in Brazil
Official name	Usina de Luiz Carlos Barreto de Carvalho
Location	Pedregulho, São Paulo, Brazil
Coordinates	20°9′11″S 47°16′46″W
Construction began	1963
Opening date	1969
Operator(s)	Eletrobrás Furnas
Dam and spillways
Type of dam	Embankment
Impounds	Grande River
Height	92 m (302 ft)
Length	535 m (1,755 ft)
Width (crest)	15.8 m (52 ft)
Dam volume	4,290,000 m3 (151,000,000 cu ft)
Spillway type	Service, gate-controlled
Spillway capacity	13,000 m3/s (460,000 cu ft/s)
Reservoir
Creates	Luiz Carlos Barreto de Carvalho Reservoir
Total capacity	1,418,000,000 m3 (1,150,000 acre⋅ft)
Surface area	46.7 km2 (18.0 sq mi)
Power Station
Commission date	1969
Type	Conventional
Turbines	6 x Francis-type
Installed capacity	1,050 MW (1,410,000 hp)

The Luiz Carlos Barreto de Carvalho Dam, formerly known as Estreito, is an embankment dam on the Grande River near Fronteira in São Paulo, Brazil. The dam serves an associated hydroelectric power plant with a 1,050 megawatts (1,410,000 hp) installed capacity.

Background

Owned and maintained by Eletrobrás Furnas, they completed studies for the dam in 1962. Construction began in 1963 and was complete in March 1969 when the first generator went online. The dam and power plant were also inaugurated that year. Because of the Furnas Dam upstream, the water level in the reservoir is operated at similar levels year round.[1] Furnas is currently planning to renovate and modernize the dam and power plant.[2]

Specifications

The Luiz Barreto Dam is a 535 metres (1,755 ft) long and 92 metres (302 ft) high earth-fill embankment dam. The total structural volume of materials for the dam is 4,290,000 cubic metres (151,000,000 cu ft). The dam's spillway contains six floodgates that are 11.5 metres (38 ft) wide and 16.5 metres (54 ft) high each. In total, the spillway has a 13,000 cubic metres per second (460,000 cu ft/s) discharge capacity.

Reservoir

The reservoir created by the dam has a surface area of 46.7 square kilometres (18.0 sq mi) and capacity of 1,418,000,000 cubic metres (1,150,000 acre⋅ft) with on 10% of the capacity (178,000,000 cubic metres (144,000 acre⋅ft)) serving as live (active or "useful") storage. The normal reservoir level is 622.5 metres (2,042 ft) above sea level and the maximum is 626.64 metres (2,055.9 ft).

Luiz Barreto Hydroelectric Power Plant

Luiz Barreto Hydroelectric Power Plant power house is 24.2 metres (79 ft) wide and 177 metres (581 ft) long and contains six 175 megawatts (235,000 hp) generators that are powered by Francis turbines.[1][2]

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References

"Hydroelectric Plant Luiz Carlos Barreto de Carvalho (1,050 MW)" (in Portuguese). Eletrobras Furnas. Archived from the original on 5 July 2014. Retrieved 19 September 2010.
"Usina de Luiz Barreto" (PDF) (in Portuguese). Eletrobras Furnas. Retrieved 19 September 2010.

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[furnas-1] "Hydroelectric Plant Luiz Carlos Barreto de Carvalho (1,050 MW)" (in Portuguese). Eletrobras Furnas. Archived from the original on 5 July 2014. Retrieved 19 September 2010.

[furnas1-2] "Usina de Luiz Barreto" (PDF) (in Portuguese). Eletrobras Furnas. Retrieved 19 September 2010.