National Route 18 is an Argentine paved highway, which crosses the province of Entre Ríos from west to east.
[citation needed] The cities and towns with more than 1,500 inhabitants that are accessed by this route from west to east are the following: In the original national route numbering plan of September 3, 1935, National Route 18 ran between Concordia and Paso de los Piuquenes, between the Province of San Juan and the neighboring Republic of Chile, although the westernmost section was the one built in 1927 that through a cornice road linked the City of San Juan and Calingasta.
[4] In the last days of June 2008, the President of Argentina Cristina Fernández de Kirchner, and the Governor of the province, Sergio Daniel Urribarri, signed the Historic Infrastructure Reparation Act for Entre Ríos.
Made up of more than 115 works, extracted from the strategic infrastructure plan, it represents an investment of more than 3,200 million pesos.
The implementation of the project to transform national route 18 into a highway constitutes a shared effort between the Nation and the Province, together with the start of pre-investment studies for the future physical link over the Paraná river in the metropolitan area of Paraná and Santa Fe, to consolidate and strengthen the central biooceanic corridor of the Argentine Republic.
To avoid crossing the city of San Salvador, a peripheral ring road was designed with accessibility nodes at both ends and the conversion of the current route into an urban boulevard .