Volvo Construction Equipment is opening up the remote Portuguese regions of Duoro and Trás-os-Montes for development through one of the largest road tunnels in the Iberian Penninsula.
The Túnel do Marão project takes in Portugal’s sixth largest mountain, the Serra do Marão. At a height of 1,415m above sea level, it presents a major obstacle between the country’s second city Porto, located on the coast, and Vila Real near the Spanish border, even since the construction of the winding IP4 highway, built in t