Leading Italy headquartered infrastructure developer Webuild announced that work has officially begun on Lot H41 Gola del Sill-Pfons, one of the biggest sections of the Brenner Base Tunnel, a project that will become the world’s longest for a railway at 64 kilometers. Connecting Italy and Austria under the Alps once completed, it will become part of the Scandinavian-Mediterranean Corridor of the Trans-European Transport Network TEN-T. Commissioned by BBT SE, the entity that is overseeing the project, the lot is being built by Webuild & Swiss subsidiary CSC Costruzioni 50% stake with joint-venture partner Implenia 50% stake.The terms of the contract include a strong focus on the sustainability of the construction activities. The logistics of the work sites are designed to reduce travel times for the transport of materials. Measures will be put in place to reduce dust and noise caused by vehicles, and the water used during construction will be treated before being returned to the environment. Among the most challenging engineering projects in the world, it includes a total of 22.5 kilometers of thetwo main parallel tunnels, with 38 cross passages. It also involves the creation of an underground emergency stop at Innsbruck, access tunnels, exploratory tunnels and parts of other secondary tunnels. There will also be the construction of a bridge over the Brennero A13 highway.Webuild is already working on other lots of the Brenner Base Tunnel, including the Isarco River Underpass and Mules 2-3 in Italy after having completed Tulfes-Pfons in Austria. It is also building the railway between Fortezza and Ponte Gardena south of the tunnel.