Road Conditions and Mont-Blanc Tunnel Information
- Please note: During the summer season, traffic through the tunnel is very heavy. Be sure to check the traffic forecasts on the Mont Blanc Tunnel’s official website to plan your trip as effectively as possible!
- From November 1, 2026, to March 31, 2027, passenger cars, commercial vehicles, and motorhomes must:
- either carry metal or fabric snow chains in the trunk, sufficient to fit at least two drive wheels;
- or be equipped with four winter tires.
Traffic information for roads in the Chamonix Valley and Mont Blanc tunnel.
1
R.N.205 : Fayet - Chamonix
Normal traffic
2
RD.1506 : Chamonix - Argentière
Special information
3
RD.1506 : Argentière - Vallorcine et Suisse (Col des Montets - 1461m)
Normal traffic
4
Route Argentière - Montroc et Le Tour
Normal traffic
Last updated on 11/09/2026 - 08:45
Special news
LA POYA SAFETY WORKS – RD1506 Access to ARGENTIÈRE, VALLORCINE AND SWITZERLAND
As part of the safety works at LA POYA (RD1506), several traffic management phases are planned:
ROAD CLOSED FROM 7 TO 11 SEPTEMBER 2026:
- From 8:30 am to 12:00 pm
- From 1:30 pm to 4:30 pm
- Outside these hours, traffic will operate under an alternating one-way traffic system.
FROM 11 SEPTEMBER 2026 AT 4:30 PM TO 20 NOVEMBER 2026 AT 4:00 PM:
Traffic will operate under an automatic alternating one-way traffic system.
This traffic management system will remain in place every day, including weekends and public holidays.
We recommend planning your journeys in advance and following the road signs in place.
Thank you for your understanding and patience throughout the duration of the works.
Impacts on Bus Services
🚌 Service Disruptions
Line 2
Line 2 will terminate at the “Les Praz-Flégère” bus stop:
- from 8:30 am to 4:30 pm.
The “Les Bois” and “Les Tines” stops will not be served.
Line 5 – School Transport
The 8:15 am departure from Le Buet on Line 5 will operate as scheduled for schoolchildren.
However, on-request transport (TAD) bookings will not be available during the following periods:
- from 8:30 am to 12:00 pm
- and from 1:30 pm to 4:30 pm.
🚐 Shuttle Bus Service in the Upper part of the valley
To ensure continued transport services, a shuttle bus will operate between the “Le Lavancher” and “Le Tour” stops.
The shuttle bus timetable is available in the attached document and on the Chamonix Mobilité website: chamonix.mobilite.com
Traffic Webcams
France Tolls - Mont Blanc Tunnel
Mont Blanc Tunnel Rates
Phone: +33(0)4 50 55 55 00 - +33(0)4 50 53 00 24 (Tourist Office)
Traffic Forecasts and Scheduled Closures (Construction)
(2026 rates, French side)
Class | Vehicle Type | One-way | Round trip (1) | 10-Ride Pass (2) | 20-ride pass (2) |
|---|---|---|---|---|---|
5 | Motorcycles, motorcycles with sidecars, motorcycles with trailers | €36.70 | €46.10 | €115.30 | €161.40 |
1 | Car, van, and small pickup truck | €55.50 | €69.20 | €173.10 | €242.30 |
2 | Car with trailer, van, and RV | €73.40 | €92.30 | €230.70 | €323.00 |
(1) For Classes 1, 2, and 5, the return trip is valid for 7 days after the ticket is purchased.
(2) Pass validity period: 24 months.
