Brenner Base Tunnel

I believe this is still under construction.
The Brenner Base Tunnel (German: Brennerbasistunnel ; Italian: Galleria di base del Brennero ) is a 55-kilometre-long (34 mi) railway tunnel under construction through the base of the Eastern Alps beneath the Brenner Pass. Upon completion, it will be the second longest railway tunnel in the world, after the Gotthard Base Tunnel in Switzerland. It will run from near Innsbruck, in Austria, to Fortezza, in Italy, replacing part of the current Brenner railway.[1] The line is part of Line 1, the Berlin to Palermo route, of Trans-European Transport Networks (TEN-T).

The $11BN Tunnel Connecting Scandinavia to the Mediterranean - YouTube

The $11BN Tunnel Connecting Scandinavia to the Mediterranean (theb1m.com)

Brenner Base Tunnel - Wikipedia

BBT SE (bbt-se.com)

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Official update stuff^

News^