Austria

The Klaus chain of tunnels: Klaus Tunnel Breakthrough in March

With the exception of the Klaus chain of tunnels and the Gleinalm Tunnel, Austria‘s Pyhrn Autobahn A9 toward the Slovakian border is fully completed. Work on the Klaus tunnels, specifically on the second bores of the Spering and Falkenstein tunnels, has been ongoing since the end of 2014, and started on the Klaus and Traunfried tunnels in May 2015. The most recent breakthrough in this series of tunnels took place on 3 March in the Klaus Tunnel; the new bore is to open to traffic as early as 2017, following civil-engineering finishing work and electrical fitting-out.

The Klaus chain of tunnels,...

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Issue 2015-03 Austria

Second Klaus Tunnel Bore: Start of Excavation in April 2015

Currently the Klaus chain of tunnels between the Klaus and St. Pankraz/Hinterstoder junctions, the Bosruck and the Gleinalm tunnels, which represent undeveloped gaps on the A9 Pyhrn Motorway, are...

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Issue 2015-05 Austria

Gleinalm Tunnel: Second Bore broken through

After more than a year of tunnelling, the second bore of the 8320 m long Gleinalm Tunnel, the third longest road tunnel in Austria, was broken through in the middle of 2015. After the planned...

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Issue 2015-02 Switzerland

Ceneri Base Tunnel: Drive towards the South completed

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Issue 2010-03 Austria

Breakthrough at Pfänder Tunnel

A second bore for the 6.6 km long Pfänder Tunnel was driven with a tunnelling machine (S-494, Herrenknecht AG) with 11.85 m cutterhead diameter. The support was provided with 25 cm thick and 2 m...

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Issue 2010-07 Austria

Second Bore for the Tauern Tunnel

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