The Thorn tunnel on the A43 had to be closed to traffic in both directions this Friday evening shortly after 7:30 p.m. due toa vehicle fire inside the tunnel (in the Lyon-Chambery direction). Shortly after 8 p.m., significant slowdowns formed in the sector. A cap of 3 kilometers was observed in the Aix-Chambery direction, and a traffic jam 4 kilometers in the Lyon-Chambery direction. A regulation has been put in place in dullin tunnel.
Reopening of the tunnel by 9:30 p.m.
The Thorn tunnel was to reopen to traffic by 9:30 p.m., but only on a single lane in the Lyon-Chambéry direction. While waiting for the reopening, exit 12 Lac d’Aiguebelette is compulsory on the A43 in the Lyon-Chambéry direction, and the exit is compulsory at Chambéry Nord for motorists coming from the A41 Nord.