An agreement has finally been reached. The closure of the Mont Blanc Tunnel, which has been announced several times in recent weeks and then cancelled, has been confirmed: from 8 am on Monday 16 October until 10 pm on Monday 18 December 2023, Mont Blanc will be closed to traffic to allow structural renovation work to begin.
The decision comes following a meeting of the Intergovernmental Commission between Italy and France, in agreement with the Prefectures of the Autonomous Region of Valle d’Aosta and Haute Savoie.
In these nine weeks of closure, the operator MBT-EEIG will start technical maintenance operations, in particular work to replace the road deck in the central area of the tunnel and to replace the 76 accelerators installed in the roof.
The Mont-Blanc Tunnel will be among the first major European tunnels to undertake extensive structural renovations. The project is part of the modernisation work that is undoubtedly necessary for the safety of the thousands of people who travel through the tunnel every day, but it could in fact significantly affect the lives of people who work between Italy and France.
Critical closure issues
For this initial phase, which will last 9 consecutive weeks (the work will be carried out in several stages), the traffic restriction is a big problem, as the change in the road system is expected to have a major impact on traffic, but we will try to keep the inconvenience to a minimum. Alternative routes will be organised during the closure period.
You will receive updates on unforeseen events and setbacks.