Implenia Begins Work on Bridges Along the Karlsruhe–Basel Railroad Line

Glattpark (Opfikon), May 29, 2026 – Today’s groundbreaking ceremony in Teningen marks the start of work on a key section of the Karlsruhe–Basel rail project in the Freiburg im Breisgau area. The project is part of the European freight corridor Rotterdam–Cologne–Basel–Milan–Genoa. In the 11-kilometer-long planning approval section 8.1 between Riegel and March, Implenia is constructing a railway overpass and a road overpass across the Feuerbach River on behalf of DB InfraGO AG.
The new double-track freight line for the Freiburg bypass runs parallel to the A5 highway and is designed for speeds of up to 160 kilometers per hour. The land-efficient design along an existing transportation corridor significantly reduces additional impacts on nature and the landscape. Once the route is completed, freight traffic will be able to bypass the Freiburg Bay; at the same time, Freiburg and the surrounding area will be relieved of approximately 50,000 freight trains annually, and the conditions for more stable local and long-distance traffic will be improved.
“With these two bridge structures, we are contributing to the implementation of one of Europe’s most significant rail infrastructure projects. We are pleased to bring our extensive experience in engineering and bridge construction to this project,” says Henning Schrewe, Head of ICS Germany at Implenia.
Media Contact:
Corporate Communications, T +41 58 474 74 77, communication@implenia.com
As a leading Swiss construction and real estate services provider, Implenia develops, builds, and manages living spaces, work environments, and infrastructure for future generations in Switzerland and Germany. Implenia also offers tunnel construction and related infrastructure services in other markets. Founded in 2006, Implenia looks back on a construction tradition spanning some 160 years. The company brings together the expertise of highly qualified consulting, development, planning, and construction units under one roof to form an integrated, multinational construction and real estate services provider. With its broad range of services and the expertise of its specialists, the Group carries out large, challenging projects and supports clients throughout the entire life cycle of their structures. The focus is on client needs and achieving a sustainable balance between economic success and social and environmental responsibility. Headquartered in Opfikon near Zurich, Implenia employs over 8,000 full-time equivalents (FTE) across Europe and generated revenue of CHF 3.5 billion in 2025. The company is listed on the SIX Swiss Exchange (IMPN, CH0023868554). For more information, visit implenia.com.
