The Koralm Tunnel - exciting insights into the major project

The Koralm Tunnel

Exciting insights into the major project

With an impressive length of 33 kilometres, the Koralm Tunnel will in future connect Carinthia with Styria. Together with its joint venture partner PORR Bau GmbH, the Rhomberg Sersa Rail Group is responsible for the construction and commissioning of the slab track as well as all other construction measures up to commissioning at the end of 2025. The facts and figures surrounding the project, which is regarded as the centrepiece of the Koralm Railway, are impressive:

  • 33 km track length
  • 270 million euros contract volume
  • 66 km installation of slab track in the tunnel
  • Infrastructure in the tunnel
  • 69 cross-passages & emergency stop in the tunnel
  • Construction of the verges and side roads
  • 350 persons on duty
Work on the major ÖBB project is scheduled to be completed by the end of 2025 with the Koralm Tunnel put into operation.