Decommissioning of AUH cyclotron bunkers: Construction work starting soon at MBG
Work related to the decommissioning of the former AUH cyclotron bunkers beneath the Nørrebrogade site will begin around the turn of the year and continue through 2026. The project involves demolition of the old concrete bunkers and later reconstruction of the basement structure. During the most intensive phases, staff in nearby areas may experience noise and general construction activity.
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Overall timeline
December 2025: Establishment of the construction site and test cutting in one of the bunkers to measure noise and vibration effects.
January–February 2026: Indoor preparation and initial works in and around the bunkers.
February–June 2026: Main demolition phase (removal of walls, ceilings, floors, and underlying structures).
Summer 2026 onward: Reconstruction of the new basement rooms begins once the site has been released by the health authorities.
What to expect
Noise impact
Cutting of concrete and removal of deck elements will generate noticeable construction noise. A test cutting in December 2025 will be used to assess potential impact on noise-sensitive activities, including fish facilities, mouse breeding and behavioural studies, and high-resolution microscopy.Outdoor construction site
A fenced construction site will be established in the area around the former bunkers near the MBG goods delivery. Only authorised personnel will have access to the site.Access and logistics
The MBG goods delivery is expected to remain accessible throughout the project. The area between the construction site and the delivery/Building 1874 is a fire access road, and the contractors are aware that this must be kept clear. We are also in dialogue with NAT-TECH-BYG and FEAS regarding solutions for accessible parking spaces to ensure that any impacts are handled appropriately — updates will follow.
At certain times, access routes in the vicinity may be narrowed or slightly affected by construction traffic, so please allow a bit of extra time when moving through the area.Safety
Radiation levels in the affected concrete and materials are very low, and the project does not involve any unacceptable radiation risk for staff or other people in or around the buildings or outside on the site. This is documented in the official safety assessment and approved decommissioning plan.
MBG contact person: Kasper Kjær-Sørensen