The tunnel Ostbahnhof joint venture, consisting in Implenia (50%) and Hochtief (50%) secured the 733 tunnel Ostbahnhof contract for the eastern section of the Second Core S-Bahn Route in Munich. The contract includes structural works for the Ostbahnhof stop and the tunnel tubes between Marienhof and Ostbahnhof. Construction work begins in June 2025 and is scheduled for completion by May 2033.
Across a stretch of around 3 km, the joint venture partners will build two traffic tunnels and a rescue gallery, the München-Ost underground station, eight connecting structures between the main tunnels, a junction structure, several galleries and shafts, as well as shell construction of a new underpass in the Ostbahnhof station.
With around 840,000 passengers per day, the Munich S-Bahn is one of the largest local public transport 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 cross the city centre through a single tunnel. The approximately 11 km long Second Core Route is intended to relieve the existing line, serve as an alternative in the event of a fault and significantly shorten travel time from west to east by introducing a new express S-Bahn system.
