📋 Tender Overview
Next milestone for the Koralmbahn The last structural work in the Koralm tunnel on the Carinthian side was successfully completed. The 33 km long Koralm Tunnel is now 100 percent technically equipped.In order for rail customers to be able to travel between Graz and Klagenfurt in 45 minutes not only tunnels bridges and train stations are needed but also a lot of technology and above all tracks. The technical equipment ensures that trains can travel safely and quickly in the first place. Tracks have been busy being laid on the Styrian side of the Koralm Tunnel since last year. From now on the Carinthian side of the tunnel will also be supplied with modern railway technology.13000 track supporting slabs in the tunnelOn the Carinthian side things start with the creation of the tunnel edge path and the verge. From late summer the first track supporting slabs will be laid here as well. Each one is more than five meters long up to 2.1 meters wide and weighs more than five tons. The 120 meter long rail sections are attached to this. A logistical challenge a total of around 13000 track supporting slabs have to be installed in the Koralm tunnel - from western Styria to the Lavanttal. More than 20 of a total of 66 kilometers in the two tunnel tubes have already been completed explains BB project manager Klaus Schneider.Environmentally friendly transportUp to 400 people are currently working on the Koralm Tunnel. Up to ten locomotives bring the crews and the material into the tunnel every day - seven days a week in multiple shifts. The track support plates are delivered in an environmentally friendly way by rail. The concrete parts are loaded at the production facility in Lower Austria and taken by train via the Styrian portals directly into the Koralm tunnel. In this way many transports on the road can be saved.Working fully on railsAnd so it goes on From spring 2023 the entire Koralm tunnel is to be equipped with rails. Then it continues with a whole series of modern systems - for vibration protection noise protection tunnel safety communication equipment signalling electronic interlockings and technical buildings. Finally there is the overhead line with an innovative overhead conductor rail. It ensures that trains can travel in an environmentally friendly manner using traction current and at speeds of up to 250 kmh says Schneider.The Koralmbahn at a glance130 kilometers of new route including 47 kilometers of tunnels over 100 bridges and 23 modern stations and stops the Koralmbahn between Graz and Klagenfurt is part of the new southern route and one of the most important infrastructure projects in Europe. Its heart is the 33 km long Koralm Tunnel. After completion the fastest connection between the state capitals will be reduced to just 45 minutes.
