RN205 closed and detour set up in both directions
As a precautionary measure, the Route Blanche between Servoz and Passy has been closed to all traffic following rockfalls at the Gures parking lot in Passy, at the top of the Egratz viaduct. Light vehicles heading for Geneva must exit at Servoz (exit 24) and follow the detour route S1. To get to Chamonix, light vehicles must exit at the control area after the ATMB Passy Mont-Blanc operations center and follow the S2 detour. Buses and HGVs are not allowed to use these bypasses. ATMB teams are mobilized to keep traffic moving safely.