ÖBB celebrates breakthrough
Milestone in Semmering: first tube has been dug
From December 2029, trains will run through the 27-kilometre-long Semmering Base Tunnel. A milestone was reached on Thursday: the first tube has been completely dug! The second is due to follow in the first quarter of 2025.
Only 200 meters are still missing, reported the "Krone" in June. Now these have also been completed - despite the geologically difficult terrain on the Lower Austrian side. On Thursday, the first tube between Mürzzuschlag in Styria and Gloggnitz (Lower Austria) was completely excavated and the final breakthrough was celebrated. Not even 300 meters are missing in the second tube.
On the Styrian side, work has been finished for some time. The "inner lining" of the tunnel tubes began here four years ago. More than 40 kilometers (of a total of 55 kilometers in two tubes) have already been completed.
The further timetable in the tunnel
What happens next? Installation of the tunnel equipment (cables, technical systems) is scheduled to begin next summer - starting from the portal in Mürzzuschlag to Gloggnitz (Lower Austria). The slab track with rails will then be laid from March 2027 to 2028. Finally, the overhead lines and lighting will follow.
The aim is to open the Semmering Base Tunnel with the timetable change in December 2029, which will reduce the journey time between Vienna and Graz by 50 minutes.
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