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,...

Related articles:

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...

more
Issue 2011-08 Austria

Bosruck Tunnel: Breakthrough for 2nd Bore

The breakthrough of the second bore for the 5.5 km long Bosruck Tunnel designed for 2 lanes took place on August 11, 2011 after only 17 months of construction. It occurred 2.5 months earlier than...

more
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...

more
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...

more
Issue 2015-08 Austria

Twin-bore Upgrading of the Bosruck Tunnel completed

The 5425 m long Bosruck Tunnel between the states of Upper Austria and Styria has been in operation since 1983, and traffic has been running through a new second bore since summer 2013. After thorough...

more