[1] This ring road was built in the decades of 1960 and 1970 to ease access to the country's capital (Buenos Aires) of passing heavy traffic.

The first paved section of this route, with a length of 38.7 km between the cities of Campana and Luján, was built by the contractor company Marengo, which completed the works in 1967.

[2] On April 26, 1972, the Marengo construction company completed the paving work on the section between San Vicente and the Partido de La Plata.

[3] Over time, industrial poles were installed in the vicinity of this highway, which contributed to the large increase in truck traffic on this route.

[9] Finally, with the change of government, the province decided that the state-owned company AUBASA would be in charge of the maintenance, and conservation of Ruta 6, which would be also a toll road.