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Mont Terri

The Mont Terri Rock Laboratory near St. Ursanne in the canton of Jura is of key importance for the Swiss waste management programme. The experiments carried out there provide important foundations for the assessment of the safety and structural feasibility of a deep geological repository in this host rock.

In 2023, 22 partner organisations from 10 countries (Switzerland, France, Germany, Spain, Belgium, the Netherlands, the United Kingdom, Japan, Canada and the USA) participated in experiments at the Mont Terri rock laboratory. Since 2003, ENSI has participated with its own research projects at the rock laboratory.

No radioactive waste is stored in the Mont Terri Rock Laboratory.

News

  • News, Posts

    25th Anniversary of the Mont Terri Rock Laboratory: Independent research improves safety

    The Mont Terri Rock Laboratory has been carrying out geological experiments in the Opalinus Clay since 1996 to assess it as a host rock for the deep geological disposal of Swiss radioactive waste and as a storage rock for CO2. On the occasion of the 25th Anniversary in the town of St Ursanne in the…

    Deep geological repositories, Mont Terri, Mont Terri Rock Laboratory, Radiation Exposure of Humans and the Environment, Research, Technical Forum on Safety, Waste Management
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  • News

    Deep geological repositories: 150 experts discuss long-term safety

    On 4 and 5 November, ENSI hosts the DECOVALEX 2019 Symposium in Brugg. This research conference welcomes international delegates to discuss the long-term safety of deep geological repositories for radioactive waste.

    Deep geological repositories, Deep Geological Repository Storage, Mont Terri
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Background articles

  • Background articles

    Guided Tours of the Mont Terri Rock Laboratory

    The International Mont Terri Rock Laboratory is situated near the small town of St-Ursanne in the canton of Jura. At the Rock Laboratory, a total of 22 partners from Switzerland, Belgium, Germany, France, Japan, Canada, Spain and the US carry out research into the properties of Opalinus clay, which is a potential host rock for…

    Mont Terri, Mont Terri Rock Laboratory, Radiation Exposure of Humans and the Environment, Research
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  • Background articles

    Mont Terri Rock Laboratory

    The objective of the international Mont Terri Rock Laboratory Research Project is to study the geological, hydrogeological, geochemical and geomechanical properties of Opalinus clay. These properties are critically important for the assessment of the safety and technical feasibility of a deep geological repository for radioactive waste in this type of rock.

    Mont Terri, Mont Terri Rock Laboratory, Radiation Exposure of Humans and the Environment, Research
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