PROJECT PROGRESS
Currently, around 93% of the about 230 kilometre long tunnel system has been excavated.
In order to construct the complex tunnel system efficiently, the BBT project has been divided into several construction sections, so-called construction lots. This makes it possible to proceed with multiple excavation methods simultaneously in different locations along the new line.
OVERALL PROJECT PROGRESS
Of the total of approximately 230 kilometres of tunnel to be built, 213 kilometres have been excavated for the BBT tunnel system to date.
OF RAILWAY TUNNEL
OF EXPLORATION TUNNEL or SERVICE TUNNEL
ACCESS TUNNEL, RESCUE TUNNEL AND LOGISTICS TUNNEL
OF WHICH HAVE BEEN EXCAVATED TO DATE
There are currently three active construction lots, one of which is located in Italy and two in Austria.
