Road Infrastructure
A32 Torino-Bardonecchia: Motorway route
The motorway starts at Rivoli at the end of the Turin bypass and ends at km 72+375 in Bardonecchia, at the beginning of the Fréjus Tunnel tollbooth. The logo and company name are visible at the beginning and end of the motorway. Since the motorway is an open system, there are no intermediate exit stations and therefore the toll is only paid at the Avigliana and Salbertrand barriers. The following junctions are located along the motorway: Rivoli, Avigliana Est, Avigliana Centro, Avigliana Ovest, Borgone, Chianocco, Susa, Susa Est, Susa Ovest, Oulx Est, Oulx, Oulx Ovest, Circonvallazione di Oulx, Savoulx and Bardonecchia.
- Location: Between Rivoli and Bardonecchia with terminal at Piazzale Difensiva (access ramp to the Fréjus Tunnel)
- Total length: 73 kilometres (of which 19 on viaducts, 18 in tunnels, 36 on embankments)
- Width: 2 x 2 lanes, 7 metres wide
- Access points: 6 major and 4 minor
- Service Areas: 3
- The Circonvallazione di Oulx and the alternative route S.S. 589 Laghi di Avigliana, linking the motorway with the main side roads, are also part of the concession.
Circonvallazione di Oulx
Alternative route S.S.589 Laghi di Avigliana
T4 – Fréjus Tunnel: Motorway route
The Fréjus Tunnel can be reached from Turin by following the A32, which goes up the Susa Valley to Bardonecchia after a distance of 72.375 km.
TECHNICAL DATA SHEET G1 GALLERY – DIRECTION FRANCE / ITALY
▪ Date of opening to traffic: 12 July 1980
▪ Length: 12,868 m
▪ Italian entrance elevation: 1,297 metres above sea level
▪ French entrance elevation: 1,228 m above sea level
▪ Single gradient profile (descending from Italy towards France): 0.54%
▪ Average width at kerbs: 10.10 m
▪ 1 traffic lane: 3.50 m
▪ Useful traffic width: 9 m
▪ Maximum authorised height: 4.30 m
▪ Maximum height to the false ceiling: 4.48 m
▪ Crossing time: approximately 13 minutes at a speed of 60 km/h
TECHNICAL DATA SHEET G2 GALLERY – DIRECTION ITALY / FRANCE
▪ Date of opening to traffic: 1 August 2025
▪ Length: 12,975 m
▪ Italian entrance elevation: 1,297 m above sea level
▪ French entrance elevation: 1,228 m above sea level
▪ Single gradient profile (descending from Italy towards France) 0.54%
▪ Average width at kerbs: 8.20 m
▪ 1 traffic lane: 3.50 m
▪ Useful traffic width: 6 m
▪ Maximum authorised height: 4.30 m
▪ Maximum height to the false ceiling: 4.50 m
▪ Crossing time: approximately 13 minutes at a speed of 60 km/h
T4 Fréjus Tunnel Route Factsheet
