Lahn Valley line reopens after Fachingen tunnel renewal

Since 2023 DB InfraGO has been renewing and widening the 426 m Fachingen tunnel (built 1862) using a tunnel-in-tunnel method, with trains continuing on a central track; excavation ended in November 2024 and the inner lining of 44 concrete blocks has been built since 2025. For the final works DB fully closed the line from Limburg to Nassau/Koblenz from 3 April to 15 May 2026, with replacement buses on regional services, while work continued on the adjacent Cramberg tunnel. Announced on 28 March 2026 with completion due at the end of May 2026. The Fachingen tunnel renewal was completed on 15 May 2026, and regular train service on the Lahn Valley line resumed that day. (LOK Report, 28 Mar 2026; second source: Antenne Koblenz, 15 May 2026)