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Semmering Base Tunnel SBT Lot 1.1

Maria Schutz, Austria

Start of construction: December 2014

Construction volume (value of our services): 457 M EUR

The approximately 27.3 km long Semmering Basistunnel is one of the most important and complex infrastructure projects in the heart of Europe. This double-tube railway tunnel is located between Gloggnitz and Mürzzuschlag, linking the two federal states of Lower Austria and Styria. As part of the new southern railway, which is the central axis on the trans-European route from the Baltic Sea to the Adriatic Sea, it represents a sustainable investment in both Austrian and European rail infrastructure.

Semmering Base Tunnel SBT Lot 2.1

Steiermark, Austria

Start of construction: December 2013

Construction volume (value of our services): 623 M EUR

The planned Semmering Base Tunnel (SBT) is currently one of the most important large-scale infrastructure projects in the heart of Europe, and forms part of the new Austrian southern railway, a central axis on the trans-European route from the Baltic to the Adriatic. With an overall length of 27.3 km, the SBT links Lower Austria with Steiermark. Österreichische Bundesbahn [Austrian Railways] has appointed Implenia as part of a consortium with Swietelsky for the construction of central Lot 2.1, a section about 13 km in length.

Wienerwald-Tunnel

Westportal Wienerwaldtunnel, Austria

Start of construction: December 2003

Construction volume (value of our services): 341 M EUR

The Wienerwald Tunnel is an integral part of the new high speed railway line between Vienna and St. Pölten.