On km marker 31 it connects with National Route A004, the main road to the coastal tourist areas of Mar del Plata and others in Buenos Aires Province.

[citation needed] The origins of this road go back to the Plan Director para Capital Federal y lineamientos estructurales para el Area Metropolitana y su región (Directing Plan for Capital Federal and structural guidelines for the metropolitan area and region) written by Buenos Aires City Hall between 1958 and 1965, where they describe, among others, a coastal highway between the cities of Tigre and La Plata.

[4] On 29 March 1979 the national Department of Transportation and its provincial counterpart signed an agreement were both entities would call for a joint bidding for the construction and widening of the Buenos Aires–La Plata highway, dividing it in three sections: the first between the neighborhoods of La Boca and Hudson, including the bridge over the Riachuelo, the second between Hudson and La Plata and the last one from the junction near Martín García Avenue until 9 July Avenue.

[5] On 30 March 1980 the Concesionaria Vial Argentino-Española (Coviares) company won the bid and obtained the work permits after signing a contract on 2 January 1983.

The original concession contract included the construction of a coastal highway that would join this road with the Autopista Illia going through Puerto Madero and Retiro, in Buenos Aires city, but it was never built.