Road works and traffic restrictions
The Mont Blanc tunnel is open 24 hours a day all year long.
To allow maintenance works, traffic inside the tunnel will be set with a contraflow during the following nights, from 10:30 pm to 06:00 am:
. from April 13th to 15th, 2015.
To allow maintenance works, the tunnel will be closed to traffic during the following night, from 11:30 pm to 04:30 am:
. from April 16h to 17th, 2015.
as follows :
Possible inconvenience from 09:00 pm to 10:00 pm and from 06:00 am to 07:00 am due to the transit of any vehicles under escort.