The Brenner Base Tunnel currently under construction is set to connect Austria and Italy. This remarkable tunnel, poised to be the world’s longest, is slated for completion in 2032.
This tunnel will link the cities of Innsbruck in Austria and Franzensfeste/Fortezza in Italy, bridging two countries across different time zones. The estimated cost of construction stands at a staggering 8.54 billion euros (£7.4 billion). The impressive BBT will span a total of 55km (34 miles).
BBT stated: « In May 1994, a railway bypass was opened south of Innsbruck, known as the Inn valley tunnel. This 12.7 km tunnel links to the Brenner Base Tunnel.
« Passenger and freight trains along this stretch will therefore not only travel through the Brenner Base Tunnel, but for a few kilometres, through the Inn valley tunnel as well. This line, totalling 64 kilometres, will become the longest underground railway connection in the world. »
One unique aspect of the Brenner Base Tunnel is the « exploratory tunnel running from one end to the other ».
« This tunnel lies between the two main tunnels and about 12m below them and with a diameter of 5m is noticeably smaller than the main tubes.
« The excavations currently underway on the exploratory tunnel should provide information on the rock mass and thereby reduce construction costs and times to a minimum.
« The exploratory tunnel will be essential for drainage when the BBT becomes operational. »
Among other remarkable railway projects worldwide is the globe’s longest train journey, which links three nations and traverses eight time zones.
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