Until 1939, there was no road connecting the north of Paraná with the port of Paranaguá; With the exception of the railroad, only freighters and wagons carried out transport in the intermediate regions.

This highway would be the main outlet for coffee crops, promoting the circulation of wealth and acting as an instrument of internal economic, social and political integration.

Also called Rodovia da Integração, it provided, at the end of its construction, the flow of more than 4 million tons of agricultural production, mainly coffee and cereals.

[4] The highway is extremely important to transport agricultural, livestock and industrial products from the states of Paraná and Mato Grosso do Sul.

BR-376, as well as BRs 277 and 369, which form a triangle within the state of Paraná, were granted to private companies in 1997, at the beginning of the era of road concessions in Brazil.

Initially, 995 km of roads in Paraná should be duplicated, and the population was promised that the State would have First World highways, strongly boosting economic growth.

The MPF (Federal Public Ministry) then carried out Operation Integration, which showed that the changes made to the contracts are part of a millionaire kickback scheme.