The weather is not available between midnight and 7am

Roadworks sites

The Tunnel du Chat is open to traffic since the 18 November and the safety gallery can be cross by cyclists and pedestrians. Works for upgrading to standards the tunnel lasted 3 years and tests about equipment security system are now finished.

On the 6 last months, was done: large sidewalks, new lightning system with LED, a light coating to improve visibility, new ventilation system, safety niche on every 100m with fire extinguisher and emergency telephone, emergency exists on every 300m related to the safety gallery.

The Tunnel du Chat is now a safety and modern work. Works leaded by the Department cost 57M€.


To organize your trip, go to to consult :

  • the new schedule of the C2 Yenne / Chambéry bus line, adapted with an additional time limited to 10 minutes
  • the carpooling possibilities between the Avant-pays Savoyard and the Chambérien and Aixois basins.

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