E6 Landslide Caused by Excavation Debris

According to a leaked report from the Swedish Accident Investigation Authority obtained by local newspaper ST-tidningen, the landslide that damaged the E6 highway near Stenungsund last year was caused by excavation debris placed at a storage site near the road.

The report states that the developer responsible for storing the debris failed to properly account for ground conditions, leading to overloading and collapse of the soil. While heavy rainfall contributed to the timing, the debris was the decisive factor.

The municipality’s lack of oversight regarding geotechnical safety in the area is also highlighted in the report.

The public prosecutor handling the criminal investigation had previously pointed to the same cause but awaited the final report before deciding on charges.

The landslide occurred on the night of September 23, 2023, destroying 400 meters of the motorway which remained closed for nearly a year. Reconstruction costs are estimated around SEK 550 million, with Peab awarded the restoration contract in March 2024.

The translation was written by an AI system, though the original text was authored by a human. Read the original article here