Category: Prévessin site impacts
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Repairs to Uneven Surface on Route Adams
Repairs to Uneven Surface on Route Adams Construction work was recently carried out in Route Adams to connect building 777 to the technical gallery which runs beneath the road. Due to particularly dry conditions over the summer, followed by the rain over the past few weeks, the road has settled and deformed beyond acceptable limits.
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Reopening of Route Adams
Reopening of Route Adams Route Adams will be reopened to traffic from Monday 3rd August 2026, with normal traffic conditions restored. The car park by B866 will also be reopened and available for everyone to use. The road markings have not yet been done, as they cannot be applied to freshly laid asphalt. These will
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Adams Road Closure Extended to Prioritise Safety and Efficiency
Adams Road Closure Extended to Prioritise Safety and Efficiency To ensure the safe completion of the ongoing underground connection works for Building 777, the closure of Adams Road has been extended. While we understand this may cause some inconvenience, the additional time allows the project team to complete the work under safe conditions, particularly following
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Partial Closure of B867 Parking: Upgrades Underway for a Greener, More Sustainable Space
Partial Closure of B867 Parking: Upgrades Underway for a Greener, More Sustainable Space Update 07/09/2026: changes to dates of parking closures Closure of part of the parking area around building 867 is planned from the 18th May 2026 until the 12th February 2027 while we work on essential upgrades. The work, which will proceed in
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Temporary Closure of Route Adams
Temporary Closure of Route Adams Route Adams will be closed from 20th April until 13th July 2026. 02/07/26 Update: Route Adams will be closed to complete some additional works, until 13th July. The closure is necessary to allow the contractor to safely and efficiently install the underground connection between the B777 basement and the technical
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Road Bearing Capacity Tests Around B867
Road Bearing Capacity Tests Around B867 As part of the works for B777, upgrades to the parking areas around B867 will be made, including the addition of nearly 200 new parking spots, and improvements to sustainable drainage and biodiversity. Next week, plate load tests will be carried out to determine the soil bearing capacity before
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Parking Upgrades at Building 867: Enhancing Sustainability and Accessibility
Parking Upgrades at Building 867: Enhancing Sustainability and Accessibility The B777 team is pleased to announce the start of essential upgrades to the parking area around Building 867. As part of this project, several trees—primarily older or lower-quality specimens—will be carefully removed to make way for a more modern, sustainable, and user-friendly parking facility. The
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Water Infiltration in Building 865: Basement and Lift Temporarily Affected
Water Infiltration in Building 865: Basement and Lift Temporarily Affected Over the past few days, following significant rainfall, water entered the basement of Building 865. The infiltration was caused by a temporary reverse pressure in the rainwater drainage system. Normally, this system removes water from the building. However, due to the high volume of rainwater,
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Installation of Two Tower Cranes for Building 777
Over the coming weeks, the construction site for Building 777 will take an important step forward with the installation of two tower cranes. These cranes — one 30 m high and the other 40 m — are essential for the next phases of the project and will remain in place throughout the main construction works…
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Commitment to a Low-Nuisance, Sustainable Construction for Building 777
As part of CERN’S dedication to sustainability, and within the framework of the BREEAM and WELL certifications, the contractor responsible of Building 777 construction has committed to adopt a Low Nuisance Construction Site Charter.