ASFINAG at work;

More security in two Oberstyrian tunnels and renovation start at S 6 near Leoben
Three kilometers of lane are renewed; Safety update for Tunnel Massenberg and Niklasdorf.

Since Monday, March 17th, the preparatory work for a major project on the S 6 Semmering expressway, which is renewed over a length of just over three kilometers in the Leoben-Ost area. The traffic routing will be set up, the medium strips are expanded and the markings installed. The overtaking traces must be blocked for this work. The main construction phase will start from mid-April, in which the St. Michael directional lane between Niklasdorf and Massenberg tunnel will be fundamentally renovated this year until the end of October. During this time, traffic is led on the Leebenstein directional lane, and only one lane is available per direction of travel. In 2026 it is the turn of the Leebenstein directional lane.

The pace is reduced to 80 km/h in the open -air area, in the Massenberg tunnel, which must also be managed in oncoming traffic, to 60 km/h for safety reasons.

Safety update for Niklasdorf and mass mountain tunnels

In the course of this renewal, the two tunnels of Niklasdorf (about 1.3 kilometers long) and Massenberg (almost 400 meters) as well as the new building Oberaich are brought up to date with the latest in terms of safety. The lower one is renewed:

 Lighting (LED)
 Ventilation (in the Niklasdorf tunnel)
 Video and emergency call system, fire and radio system
 Sensors (such as air quality)

The tunnel control as well as the traffic lights, curb reflectors and all other facilities for traffic control are also exchanged. In the area of ​​the Leoben-Ost junction between the tunnel Niklasdorf and the mass mountain tunnel, a output and information system is also being built in the event of a fault or lock.

source: ASFINAG.