The Gjerdrum committee believes that it is not possible to eliminate all danger of quick clay landslides but that the risk of landslides is now greater than what can be accepted.
“All the danger related to quick clay landslides can not be eliminated, and there is a question of what level of risk society is willing to accept when it comes to such landslides,” it is stated in a new report.
The first preliminary report was presented in September 2021. It addressed the causes of the landslide that cost ten people their lives in Gjerdrum in 2020.
The majority in the committee believes that Norway should have a “vision zero” approach when it comes to deaths in quick clay landslides. To achieve that goal, they recommend a national action plan.
The main conclusions are to clarify the actors’ responsibilities, map known quick clay zones, secure existing buildings, ensure that new construction takes place in line with safety requirements, better monitoring of erosion and other terrain changes, and ensure that all actors responsible for prevention are aware of the danger of quick clay landslides.
“The lessons learned from the Gjerdrum landslide show that landslides can cross danger zone boundaries and that assessment of landslide safety must not be limited by the planning area,” the committee noted in the report.
Source: © NTB Scanpix / #Norway Today / #NorwayTodayNews
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