Mont Blanc Motorways and Tunnel Mont Blanc Motorways and Tunnel

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Works : traffic informations

Roadworks and traffic information

- Châtelard and Chavants bridges – from April 7th to June 27th
Type of work: maintenance work including security equipments.
Traffic conditions :
Traffic on one lane in both tunnels (left side of the road).

- Near Passy - Chamonix/ Geneva direction - from April 23rd to June 27th
Type of work : road works on behalf of EDF (electricity company)
Trafic conditions :
Traffic will be reduced to one lane near Passy for 1.5 km.
Exit at the half-interchange EDF will be closed :
Detour by interchange n°22 (Le Fayet) or n°21 (Passy).
Wide loads (width > 3.5 m) are strictly forbidden throughout the road works zone, unless escorted by ATMB. ATMB escort can be set on Tuesdays and Thursdays from 4 am to 6 am with a contraflow on the Egratz viaduct.