The Mont Blanc tunnel, managed by Tmb-Geie, will be completely closed for traffic from September to December 2023 and in 2024 for major remediation work to be carried out on the structure and safety systems.

Mont Blanc tunnel to completely shut down from September to December 2023

The Mont Blanc tunnel will be completely closed for 21 days from mid-October to the first week of November, according to the tunnel's operator updates. It is worth preparing in time to use alternative routes!