“Tunnel Ostbahnhof” joint venture awarded contract for eastern section of the Second Core S-Bahn Route in Munich
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Implenia AG
/ Key word(s): Incoming Orders
Contract for the Ostbahnhof tunnel includes tunnel bores and connecting structures | “Tunnel Ostbahnhof” joint venture consists of Implenia and HOCHTIEF | Order worth a sum in the mid hundreds of millions of euros to Implenia Glattpark (Opfikon), 3 April 2025 – As part of the major Second Core S-Bahn Route project in Munich, Deutsche Bahn is awarding the “733 Tunnel Ostbahnhof” contract to the “Tunnel Ostbahnhof” joint venture, in which Implenia and HOCHTIEF each have a 50% stake. The contract, worth somewhere in the high hundreds of millions of euros to the joint venture, 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 three kilometres, 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. This will all require a wide range of skills in tunnel construction, special foundations and civil engineering. These demanding city-centre construction works present the joint venture partners with some special challenges, from both a technical and logistical point of view, especially since the work will be done while trains continue to travel through the busy Munich hub. Systematic use of BIM technology and proven Lean working methods will help keep the project running smoothly. The new contract for the eastern section represents the continuation of a very successful ongoing collaboration: Implenia and HOCHTIEF have been working together on the Second Core S-Bahn Route in Munich since 2018 as part of the Marienhof joint venture that is building the central Marienhof station in the heart of the city. Implenia is the technical lead for the Marienhof joint venture, while HOCHTIEF is the technical lead for the Tunnel Ostbahnhof joint venture. In each case the other partner is taking the commercial lead. Jens Vollmar, CEO of Implenia, is pleased about the new contract for the complex major project in the centre of Munich, which fits perfectly with the strategic focus of the construction and real estate service provider: “Maintaining and developing a functioning transport infrastructure is central to the quality of life in our cities. I’m very happy that Implenia, with its many years of experience and comprehensive expertise, is once again able to contribute actively to improving public transport in Munich.” 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. 
Visualisation of the new Ostbahnhof station on Friedenstrasse (image: ©Deutsche Bahn AG / Fritz Stoiber Productions GmbH). 
Project section East, Second Core Route (image: @Deutsche Bahn). Contact for media: Dates for investors: 4 March 2026: Annual results 2025, Analysts and Media Conference As Switzerland’s leading construction and real estate service provider, Implenia develops, builds and manages homes, workplaces and infrastructure for future generations in Switzerland and Germany. It also offers tunnelling and related infrastructure services in other markets. Formed in 2006, the company can look back on around 150 years of construction tradition. Implenia brings together the know-how of its highly skilled development, planning and execution units under the umbrella of an integrated multinational construction and real estate service provider. With its broad offering and the expertise of its specialists, the Group realises large, complex projects and provides client-centric support across the entire life cycle of a building or structure. It focuses on client needs and on striking a sustainable balance between commercial success and social and environmental responsibility. Implenia, with its headquarters in Opfikon near Zurich, employs more than 9,000 (FTE) people across Europe and posted revenue of CHF 3.6 billion in 2024. The company is listed on the SIX Swiss Exchange (IMPN, CH0023868554). More information can be found at implenia.com.
End of Media Release |
| Language: | English |
| Company: | Implenia AG |
| Industriestrasse 24 | |
| 8305 Dietlikon | |
| Switzerland | |
| Phone: | +41 58 474 74 74 |
| E-mail: | info@implenia.com |
| Internet: | www.implenia.com |
| ISIN: | CH0023868554 |
| Valor: | A0JEGJ |
| Listed: | SIX Swiss Exchange |
| EQS News ID: | 2110962 |
| End of News | EQS News Service |
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2110962 03.04.2025 CET/CEST
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