Overview
- The Straßentunnel Alexanderplatz will be fully closed starting Monday, June 22, for four weeks so crews can repair the tunnel’s drainage channels.
- Officials say eight damaged drainage channels and the weakened metal grates above them require simultaneous work, which is why the tunnel must be shut completely.
- Traffic will be diverted onto the parallel ground‑level carriageways that run above the tunnel, but drivers should expect congestion and are advised to use alternative routes.
- The Senatsverwaltung expects the works to finish on July 17 and plans to reopen the tunnel with two lanes per direction once repairs and curing times are complete.
- The tunnel links Grunerstraße and Otto‑Braun‑Straße in Mitte, and the scheduled maintenance was announced by the Senatsverwaltung as planned work rather than an emergency repair.