Salto is the capital city of the Salto Department in northwestern Uruguay, with a population of 104,028 as of 2011, is the fourth largest urban agglomeration of the country. It is located on Route 3, about 496 kilometres (308 mi) northwest of Montevideo, and on the east bank of Río Uruguay, across the city Concordia of Argentina. About 12 kilometres (7.5 mi) north of city, the Salto Grande Bridge, built on top of the Salto Grande Dam, joins the two sides. It is also connected by Salto International Airport and by rail.