Salto Grande Dam

The Salto Grande Dam is a large hydroelectric dam on the Uruguay River, located between Concordia, Argentina, and Salto, Uruguay; thus shared between the two countries.

The construction of the dam began in 1974 and was completed in 1979. Power is generated by fourteen Kaplan turbines, totaling the installed capacity to 1,890 MW. The dam passes approximately 64,000 cubic metres of water per second, compared to the current average flow of the Uruguay River at 4,622 cubic metres. The reservoir has a total area of 783 square kilometres, while its maximum dimensions are 140 by 9 kilometres.

Source: Wikipedia