Switzerland’s Gotthard Base TunnelExternal link is the world’s longest (and deepest) railway tunnel. Opened in 2016 after 17 years of construction, it consists of two 57.1km single-track ...

In April, the final breakthrough is expected in the second tube. At 57 kilometers long (35 miles), the Gotthard Base Tunnel will handily outstrip the 50-kilometer (31-mile) Channel Tunnel between ...

It lies some 2,480 metres beneath the Aiguille du Midi summit, making it the second deepest operational tunnel in the World operation after Gotthard Base Tunnel in Switzerland.

Swiss authorities said there was "no indication" when the Gotthard Base Tunnel would reopen. Sixteen wagons derailed and are still stuck inside, a week after the incident on 10 August. Opened in ...

The tunnel crosses 16 of these zones, making its construction an extraordinary feat. One of its standout features is a ...

The deepest known point in a cave is in Krubera Cave in Georgia. Switzerland's Gotthard Base Tunnel is the deepest railway tunnel. Mponeng in South Africa is the world's deepest gold mine.

The Zimmerberg Base Tunnel is therefore a project of the century ... the fourth longest rail tunnel in Switzerland after the Gotthard, Lötschberg and Simplon, but ahead of the Vereina.

Implenia CEO André Wyss emphasised the importance of tunnel construction in view of urbanisation and the growing transport needs in Europe.

Lying 2,480 metres beneath the Aiguille du Midi summit, it is the world’s second deepest tunnel in operation after Switzerland’s Gotthard Base Tunnel. Various closures took place throughout ...

Lying 2,480 metres beneath the Aiguille du Midi summit, it is the world’s second deepest tunnel in operation after Switzerland’s Gotthard Base Tunnel. Various closures took place throughout 2024 to ...