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Tunnel construction


Implenia Tunnelling in figures

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References

A selection of our best projects

Semmering Base Tunnel SBT Lot 2.1

The planned Semmering Base Tunnel (SBT) is currently one of the most important large-scale infrastructure projects in the heart of Europe and part of the new Austrian Southern Railway, which is the central axis on the trans-European route from the Baltic Sea to the Adriatic Sea.

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Albvorlandtunnel

The new Wendlingen-Ulm line (NBS), together with Stuttgart 21, significantly improves Baden-Württemberg's infrastructure and thus creates shorter travel and transport times not only in Baden-Württemberg but also across Germany and Europe.

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Lyon Metro Line B

This project, with a length of approximately 2.5 km, will extend line B from Gare d'Oullins station to Hôpitaux Lyon Sud station and create two additional stations. The journey time between Oullins station and the Lyon Sud hospitals is 3 minutes and 20 seconds.

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Nant de Drance pumped storage power station

The project involves the construction of a pumped storage power plant between the two dams Emosson and Vieux Emosson. The new power plant cavern is located at approx. 1700 m a.s.l. Access to the underground facility is from below through a 5 km long tunnel and from above through a 2 km long tunnel system.

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Slussen SN91

Extensive rock and concrete work at Katarina Mountain. To accommodate Stockholm's continuous development, Slussen is rebuilt and a bus terminal is built at Katarinaberget.

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Sandbukta-Moss-Såstad (SMS2A)
Sandbukta-Moss-Såstad (SMS2A)

Sandbukta-Moss-Såstad (SMS2A)

The new double-track project Sandbukta-Moss-Såstad (SMS2A) is part of the Intercity development and one of the plots in the connection to Halden (west line of Østfoldbanen). On the line, 10.3 km of double-track will be rebuilt, partly in tunnel and partly in daytime.

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News

Here is a selection of our tunnelling news

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