Detailed design work is slated for completion by the end of 2025, with construction set to begin in early 2026.

A railway worker walks along a parked train outside the central train station in Frankfurt, Germany, Monday, March 11, 2024. One of the busiest railway lines in Germany, the 70-kilometer (43-mile ...

Switzerland’s Implenia has won a €200m contract to build two rail tunnels under Frankfurt for German state rail infrastructure operator DB InfraGO.