National Route 12 (Argentina)

National Route 12
Ruta Nacional 12
National Route 12
Route information
Length:	1,580 km (980 mi)
Major junctions
South end:	Zárate
North end:	Fraternity Bridge, Puerto Iguazú
Location
Counties:	Zárate, Campana, Gualeguay, Diamante, Paraná, La Paz, Ituzaingó, San Ignacio, Iguazú
Highway system
Highways in Argentina

National Route 12 (RN12) is a road in Argentina, connecting the northeast section to the rest of the country. It runs through the provinces of Misiones, Corrientes, Entre Ríos and Buenos Aires.

Starting south of the city of Zárate in Buenos Aires Province, and crossing the Paraná River, through the Zárate-Brazo Largo Bridge, continues to the provincial capitals of Paraná, Corrientes and Posadas, ending at the Fraternity Bridge, in the city of Puerto Iguazú, bordering with Brazil. The road continues within Brazil as BR-469. Its length of 1,580 km (982 mi), is fully paved.

In the Zárate - Ceibas section, the road is a wide, 4-lane highway. Before the opening of the Zárate - Brazo Largo bridge, on 14 December 1977. cars had to cross the Paraná de las Palmas and Paraná Guazú rivers by barge. The section between the rivers, in Talavera Island, was a treated, unpaved road.

Construction on the second lane (widening) on the 45 km (28 mi) section between Brazo Largo and Ceibas (km markers 115 to 160) was started on May 1997, opening to the public on 12 October 1999.