The lot increases Webuild's involvement in the development of the Brenner Base Tunnel, which will become the longest railway tunnel in the world at 55km, one of the most complex projects given the mountainous terrain, thereby confirming the Group's expertise in tunnelling with a track record of approximately 2,400km of underground work.

Webuild is working on other lots of the Brenner Base Tunnel, including the Isarco River Underpass and the Mules 2-3 lot after having completed Lot Tulfes-Pfons for BBT. Webuild is also working on the railway between Fortezza and Ponte Gardena south of the tunnel in the mountain.

The newly awarded Lot H41 foresees a section of the Brenner Base Tunnel in Austria and consists in the construction of the railway from Gola del Sill near the city of Innsbruck in the north to the town of Pfons located further south. The contract includes both the traditional method of excavation for the two parallel tunnels for approximately 7.3km, including auxiliary tunnels as well as the mechanised method of excavation for another 16.5km, in addition to the lining of the walls of completed tunnels, an underground emergency stop at Innsbruck, access tunnels, exploratory tunnels and parts of other secondary tunnels.

The mechanised method will deploy two tunnel-boring machines (TBM), among the most sophisticated in the sector, with a diameter of more than 10m. The design of the project focuses on the environmental sustainability of the project during construction: the logistics of the work sites are designed to reduce travel times for the transport of materials, and measures to reduce dust and noise are foreseen.