The Salto Grande Bridge is a road and railroad bridge that crosses the Uruguay River and joins Argentina and Uruguay. It is built on top of the Salto Grande Dam. The bridge runs between Concordia, Entre Ríos, Argentina, and Salto, Uruguay.
See also Libertador General San Martín Bridge General Artigas Bridge Cellulose plant conflict between Argentina and Uruguay List of international bridges
References EntreRiosTotal.com.ar (tourist website)