Road works and traffic restrictions
The Mont Blanc tunnel is open 24 hours a day all year long.
To allow safety exercise, the tunnel will be closed to traffic during the following nights :
. from November 24 to 25 - from 10.00 p.m. to 6 a.m.
. from December 1 to 2 - from 9.00 p.m. to 6 a.m..
To allow maintenance work, traffic will be set with a contraflow, from 10.30 pm to 6 am, during the following nights :
. from November 25 to 27
. from December 2 to 4
. from December 15 to 18.
as follows :
Possible inconvenience from 9 pm to 10 pm and from 6 am to 7 am due to the transit of any vehicles under escort.