We have been instructed to supervise the propulsion of more than 6km double tunnel. The section of the „Koralmbahn“ (Graz – Klagenfurt) includes the tunnel „Deutsch Grutschen“, about 600m open design with a tunnel bridge through the Granitztal and the adjacent tunnel „Langer Berg“. In addition to the 12 cross-passages between the tubes, a central ventilation, roads and creek transfers will be performed.
Construction period: 02/2015-02/2025
Construction sum: EUR 200 M
Principal: ÖBB Infrastruktur AG
Length: 6,375 km double tunnel