The Mont-Blanc tunnel closes from this Wednesday evening until Friday morning To allow maintenance work to be carried out, traffic will be completely interrupted at the Mont-Blanc tunnel this Wednesday, June 19 from 11:30 p.m. until Friday, June 21, 6 a.m.
A traffic interruption of 30 hours and 30 minutes planned for a long time as part of the renovation of the running slab of the structure linking France to Italy.
More info on Tunnel MB https://www.chamonix.net/english/travel/mont-blanc-tunnel
Le Dauphiné