Highway No. 6 was built by the Build Operate Transfer (BOT) financial method.

Under this method the Government grants a group of private companies a concession to design, construct and operate projects requiring extensive financing, while at the end of the concession period the project is transferred to the State. In this way, the State can overcome the lack of public financing and obtain private financing to develop the infrastructure without using government funds and without risk to public capital due to problems that might arise in the course of the construction and operation.

The high professional skill and the experience of the private companies selected for the concession assures professional work by experts and compliance with timetables.