Garabí Dam

Garabí Dam
2007 projection of the Garabí Dam and reservoir
Location of Garabí Dam in Brazil
Official name	Represa de Garabí
Country	Argentina, Brazil
Coordinates	28°13′37″S 55°42′58″W / 28.227032°S 55.716181°W / -28.227032; -55.716181Coordinates: 28°13′37″S 55°42′58″W / 28.227032°S 55.716181°W / -28.227032; -55.716181
Purpose	Hydroelectric
Status	Planned
Dam and spillways
Type of dam	Earth fill
Length	3,200 metres (10,500 ft)
Elevation at crest	93 metres (305 ft)
Width (crest)	10 metres (33 ft)
Reservoir
Surface area	642 square kilometres (248 sq mi)
Normal elevation	89 metres (292 ft)
Power station
Hydraulic head	33 metres (108 ft)
Turbines	8 Kaplan
Installed capacity	1,152MW
Capacity factor	0.60
Annual generation	5,970GW

The Garabí Dam (Portuguese: Represa de Garabí) is a planned dam and generating station on the Uruguay River between Argentina and Brazil, part of the Garabí-Panambi Hydroelectric Complex. There is some controversy over the environmental impact on the fast-flowing river.

The dam would be built in the Corrientes provinces of Argentina, and the Garruchos municipality of Rio Grande do Sul in Brazil. The exact location would depend on the results of geological studies of the sites. The Garabí Dam would be about 6 kilometres (3.7 mi) downstream from the town of Garruchos, and in Brazil its reservoir would cover parts of the municipalities of Garruchos, Santo Antônio das Missões, São Nicolau, Pirapó, Roque Gonzales, Porto Vera Cruz, Porto Lucena and Porto Xavier. The project is a joint venture of Eletrobras of Brazil and Emprendimientos Energéticos Binacionales (Ebisa) of Argentina.

In 1988 the proposed dam would have a reservoir at an altitude above sea level of 94 metres (308 ft), two engine houses with 6 Kaplan turbines each, giving a total installed capacity of 1,400 to 1,800MW, with an annual average of 6,100GWh. The dam would have a maximum height from the foundation of 81 metres (266 ft) and a length of about 3,800 metres (12,500 ft). The two machine houses would share a common tunnel in the bed of the river. The reservoir would be 145 kilometres (90 mi) long, with an area of 810 square kilometres (310 sq mi). As of March 1986 the estimated cost was US$1,357 million. By December 1994 the estimate had been revised to US$1,789 million.

Under a revised plan in 2010 the proposed dam would have an altitude above sea level of 89 metres (292 ft), one engine house with 8 Kaplan turbines, giving an installed capacity of 1,152MW, with an annual average of 5,970GWh. The dam would be about 40 metres (130 ft) high and 3,200 metres (10,500 ft) long. As of 2016 the estimated cost was US$2,728 million.