ULMA Solutions for the Widest Tunnel on the Iberian Peninsula

As part of the first phase in the expansion of the A-4 Motorway, this project includes both the construction of a new tube 367 m in length and the renovation of extant tubes. The new tube, located just north of the original tunnel, will have four separate lanes for traffic travelling from Amarante to Oporto; the original tubes will provide passage for traffic in the opposite direction. The project is designed to drastically improve travel conditions for traffic going in and out of the city of Porto.

ULMA’s technical team in partnership with the client developed a solution in order to make work as efficient as possible. 

Read more about the project.