B4 near Gifhorn: Road subsidence ensures single-lane traffic!

In Gifhorn there are again problems on the B4 west bypass in the north direction. A current roadway subsidence is leading to single-lane traffic, which has been in place since the beginning of December. The main lane has been closed since then and traffic is being diverted via the passing lane. Loud WAZ Online Repair work is expected to begin this week or next week, depending on weather conditions and the availability of concrete and asphalt.

A soil survey has already been completed, but the results are still pending. It is suspected that rain and water runoff from the road contributed to the current damage. The situation is not new: a similar subsidence occurred in the same place about a year ago. At that time, a hole measuring 2×3 meters appeared, which was caused by several pipes under the road. The suspected cause at the time was an animal, possibly a nutria.

Further challenges on the B4

The B4 near Gifhorn was already single-lane in 2024 due to renovation work on bridge pillars between Isenbüttel and Heidland. The partial closures at a bridge construction site near Weiland were lifted in November 2024, which was delayed by around a month. This renovation work was necessary due to cracks in the bridge piers.

In addition, further subsidence has occurred in the past, such as in summer 2021 near the Allerkanal Bridge. In this particular case, no animal damage had been identified; The cause was a slight further compaction of the soil material in the road embankment.

There is also currently information about a partial closure of the B4 at the bridge over the DB tracks. The main northbound lane is also closed here and a ground survey is being planned to determine the causes. After the inspection, the damaged area should be removed. The responsible state authority asks for your understanding and special attention in the area of ​​the damaged area Regional today reported.