Public chaos in Vienna: U4 and S-Bahn closed by September!

Am 28. Juni 2025 beginnen in Wien umfangreiche Bauarbeiten, die zu Einschränkungen bei U-Bahn und S-Bahn führen. Informieren Sie sich über betroffene Linien, Umleitungen und Ersatzverkehre.
On June 28, 2025, extensive construction work begins in Vienna, which lead to restrictions on the subway and S-Bahn. Find out more about affected lines, diversions and replacement traffic. (Symbolbild/MW)

Public chaos in Vienna: U4 and S-Bahn closed by September!

From Saturday, June 28, 2025, it says in Vienna: Construction sites and delays in public transport! The subway lines U4 and U6 and the S-Bahn master route are closed in sections by September 1, 2025. This means that passengers have to adjust to significant restrictions, such as reported.

The U4 subway line is now only put into operation between Heiligenstadt and Friedensbrücke and from Hütteldorf to Schottenring. The reason for the partial closures are urgently needed general overhaul in the blocked section. As an alternative, the replacement bim line E4 and the redirected line D will take over traffic in the affected area. For the U6, the Tscherttegasse station is only headed towards seven -shines; Passengers must therefore change to Meidling to achieve their goals. If you want to go from Tscherttegasse to Floridsdorf

construction sites on the S-Bahn and trams

The S-Bahn master route between Floridsdorf and Praterstern is also included in the work and will be closed until September 1st. This is part of the "S-Bahn Vienna Upgrade" program to improve the infrastructure. For everyone who depends on the S-Bahn, a rail replacement traffic with yellow direct buses from Praterstern to Floridsdorf is offered, while a blue SEV bus operates all stations. Track work is underway on Hütteldorfer Straße, which leads to the setting of line 49; Lines 46 and 52 take over parts of the route.

But it is not only built in the subway area: From July 1, 2025, extensive work on the Ringstrasse, including Carinthian Ring, Schubertring and University Ring, begins. Four tram lines - 1, 2, 71 and D - are redirected here, and this will be partly the case until the end of August. In order to defuse the situation, the subway in other areas will strengthen traffic.

modernizations in Vienna

The current restrictions are part of a larger renovation of public transport in Vienna. According to Wiener Linien , extensive renovation and modernization work in the tram and subway sector will be carried out in 2025. In the summer of 2025, the U4 will be divided in the section between Schottenring and the Peace Bridge, and since January 13, passengers have to expect that only every second train will take to Heiligenstadt.

In addition, extensions and renovations are also available for the U1 and U6: The U1 will renew platforms from March to July 2025 and the U6 work between Spittelau and Jägerstrasse with new switches. The long -planned modernization of the Tscherttegasse station will also be tackled from spring 2025.

In 2024, 8.6 kilometers of tram tracks and 53 course have already been renewed, and for 2025 there are eleven kilometers of tracks and 45 new course on the agenda. The aim is to reduce the slow driving points and offer passengers a better service.

passengers should regularly find out about the current traffic situation and adjust to inconvenience, but also keep the advantages of the upcoming modernizations in mind. Further information about diversions, travel times and replacement traffic are online at the ÖBB

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OrtHeiligenstadt, Österreich
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