Overview
- The A7 was fully closed in both directions between Hamburg‑Stellingen and Hamburg‑Heimfeld from late Friday for planned construction on the Elbmarsch section.
- Traffic control and Autobahn GmbH Nord recommended drivers avoid Hamburg and use wide detours while the full closure lasted.
- Shortly after midnight Monday the Verkehrsleitzentrale reported the Elbtunnel was reopened, ending roughly a 55‑hour interruption to through traffic.
- The closure forced large detours onto the A1 and local streets, producing queues up to about nine kilometres and ADAC estimates of up to one hour extra travel toward Bremen.
- Residual morning congestion persisted after reopening because an automatic height-control safety stop triggered and the carriageway narrows from four to three lanes before the tunnel, and drivers should expect ripple delays on feeder roads as traffic normalises.