Koralm Tunnel Archives - International Railway Journal

Koralm Tunnel

November 5, 2025 | Infrastructure

ÖBB opens Koralm Railway to freight traffic

The new 130km line will increase capacity and reduce transit times.

February 10, 2025 | Main line

Austria’s newest railway approaches the finishing line

Around a quarter of a century after construction first started on Austria’s Koralm Railway, the final phases are underway, with opening scheduled for the end of this year. Mark Simmons charts the progress of this ambitious new main line and considers how it will benefit the wider European rail network.

June 20, 2023 | Infrastructure

First passenger train through Austria’s Koralm tunnel

33km tunnel forms part of 130km Koralm railway from Graz to Klagenfurt.

September 22, 2020 | Infrastructure

ÖBB starts construction of key Koralm railway section

AUSTRIAN Federal Railways (ÖBB) has commenced construction of the Feldkirchen - Weitendorf section of the Koralm railway, linking Graz with Klagenfurt via the Koralm tunnel.

July 28, 2020 | Infrastructure

ÖBB awards €160m contract for Koralm tunnel

AUSTRIAN Federal Railways (ÖBB) has awarded the FF Koralm joint venture of Porr Bau and Rhomberg Bahntechnik a €160m contract to fit out the 32.8km Koralm Tunnel from May 2021.

June 19, 2020 | Infrastructure

Tunnelling completed on Austria’s 33km Koralm tunnel

ÖBB Infrastructure completed tunnelling of the €5.4bn 32.9km Koralm tunnel on June 17, 18 years after the first exploratory tunnels were bored.

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