Salto Grande Dam, Hydroelectric power station at Uruguay River border of Concordia and Salto, Argentina Uruguay.

Salto Grande is a hydroelectric power station on the Uruguay River at the border between the Argentine city of Concordia and the Uruguayan city of Salto, stretching roughly three kilometers long. The facility includes fourteen Kaplan turbines set in a concrete base, along with spillways, control rooms and a service bridge that divides the river into two sections.

Work began in 1974 after years of negotiation between the two countries, and the first turbine went online in 1979. Completion of the entire complex came in 1983, with roughly forty-five hundred workers involved in the construction.

The dam takes its name from the Salto Grande rapids it replaced, a set of falls on the Uruguay River. The 1946 agreement between Argentina and Uruguay set the goal of using those rapids for navigation, irrigation, energy and flood control. Since 2002 the Museo y Centro Cultural de Salto Grande has displayed parts and objects from the construction of the complex.

The facility offers exhibition spaces with models and films about turbine operation and construction history, accessible through advance booking. A visitor center on the Argentine side displays panels and diagrams about electricity generation and the joint management.

The facility created an artificial lake that stretches roughly one hundred and forty kilometers upriver to Federación, reshaping the shoreline and surrounding landscape. Maintenance of the turbines requires specialized divers who regularly work underwater to inspect blades and mechanical parts.