From Ugine to Val d'Arly, the Alpine departmental road is punctuated with tarmac protection equipment. For 12 km, anti-landslide fences, retaining walls, tunnels and avalanche barriers follow one another along the road.
So many facilities have earned this route, which is very popular with tourists and locals, the reputation of being among the most expensive roads in France. “This is surely not completely false,” observes Olivier Thévenet, vice-president of the Savoie department, responsible for infrastructure.