ARGE Tunnel Ostbahnhof Wins Contract for the Eastern Section of the 2nd S-Bahn Main Line in Munich
At the beginning of April 2025, Deutsche Bahn awarded contract unit 733 Tunnel Ostbahnhof to the consortium ARGE Tunnel Ostbahnhof as part of the major Munich 2nd S-Bahn Main Line project. Implenia and Hochtief each hold a 50% stake in the consortium.
Planned Construction Period: June 2025 to May 2033
The contract, with a total volume for the consortium in the high three-digit million euro range, includes the shell construction work for the Ostbahnhof station and the tunnel tunnels between Marienhof and Ostbahnhof. Construction work is scheduled to begin in June 2025 and is expected to be completed by May 2033.
Visualization of the new Ostbahnhof station on Friedenstrasse
Credit/Quelle: Deutsche Bahn AG/Fritz Stoiber Productions GmbH
2nd Munich S-Bahn Main Line, eastern project section
Credit/Quelle: Deutsche Bahn
On a stretch of around three kilometers, the consortium partners will construct two traffic tunnels and a rescue tunnel, the underground station München-Ost, eight connecting structures between the line tunnels, a branch-off structure, several adits and shafts as well as a new track underpass at Ostbahnhof in shell construction.
The complex construction work in the inner-city Munich area and during ongoing rail operations present the consortium partners with special challenges in terms of both technology and logistics. The consistent use of BIM technology and proven lean construction methods is intended to support the smooth execution of the project.
Second Contract Awarded to Implenia and Hochtief
Implenia and Hochtief have been working in the Marienhof consortium since 2018 on the construction of the central Marienhof station in the heart of Munich as part of the construction of the 2nd S-Bahn Main Line in Munich. Implenia has the technical lead for the Marienhof consortium and Hochtief for the Tunnel Ostbahnhof consortium. The other ARGE partner is responsible for the commercial management.
With around 840 000 passengers per day, the Munich S-Bahn is one of the largest public transportation systems in Germany. Opened in 1972, the 11.3 km long main line has reached its capacity limit, as all S-Bahn trains have to pass under Munich city center through a tunnel. The almost 11 km long 2nd Main Line is intended to relieve the existing route, serve as an alternative route in the event of a disruption and significantly shorten the travel time from west to east by introducing a new express S-Bahn system.
