In addition to the main tunnels that will facilitate the passage of high-speed/high-capacity trains, the project foresees a network of 230km of tunnels and spaces, 151km of which have already been excavated. This complex underground network, whose deepest point will be 1,700m below the mountain range peaks, will have passenger trains travel at speeds of up to 250kph and those for cargo at 160kph.

At an official ceremony deep inside the mountain, the last diaphragm separating lots H71 Isarco River Underpass and H61 2-3 Mules was torn down by the excavator. In attendance were Nicola Meistro, senior executive vice president operations of Webuild, Pat Cox, european coordinator for the Scandinavian-Mediterranean Corridor of the Trans-European Transport Network (TEN-T), Gilbert Cardola, chief executive (Italy) of BBT SE, Martin Gradnitzer, chief executive (Austria) of BBT SE, and Anna Masutti, president of Rete Ferroviaria Italiana (Gruppo FS Italiane).

The project is strategic for the TEN-T, the high-speed/high-capacity network which will transport people and goods throughout the continent. By facilitating sustainable mobility among member countries by shifting more people and cargo from road to rail, it will help greatly reduce CO₂ emissions. The Scandinavian-Mediterranean Corridor, of which the Brenner Base Tunnel will be a part, will connect the transport system between Helsinki in Finland and La Valletta in Malta.

Webuild is involved in four lots of the Brenner Base Tunnel project - more than any other company working on the project. In addition to H71 Isarco River Underpass and H61 2-3 Mules, Webuild is working on H41 Gola del Sill-Pfons after having completed Tulfes-Pfons, both of which are on the Austrian side.

Webuild is also working on the railway between Fortezza and Ponte Gardena south of the tunnel in Italy.