Overview
- Autobahn Westfalen will close the link from the A448 onto the A45 northbound from 26 September at 09:00 for preparatory investigations, with traffic rerouted via the A45 Dortmund‑Süd interchange and an advertised duration of about six weeks.
- The soil and geotechnical checks target suspected 'wilder Bergbau,' a form of undocumented, unauthorized historic mining that would require precautionary filling if found, which could lengthen the closure beyond the initial estimate.
- Separate major works will coincide with the probe: the Autobahn GmbH plans a full A40 closure at Kreuz Kaiserberg from 17 October 21:00 to 20 October 05:00 for a bridge demolition and further ramp closures beginning 29 October that are expected to run until around mid‑2027.
- On the A3 near Emmerich five aging 1960s bridges are being replaced in a programme running into early 2027 that uses weekend full closures and routes diverted traffic via the A42 and A57 when needed.
- Drivers should expect overlapping disruptions during the autumn school holidays and check real‑time notices from the Autobahn GmbH and the Dutch Rijkswaterstaat because findings from the mining probes could trigger extra remediation and longer detours.