 Cross-section of the tunnel | |
| Overview | |
|---|---|
| Status | Under construction |
| System | Turin–Lyon high-speed railway |
| Start | Maurienne, France |
| End | Susa Valley, Italy |
| Operation | |
| Work begun | 2002 |
| Constructed | 2019–present |
| Traffic | passenger trains and freight trains |
| Character | Twin tube Passenger and freight |
| Technical | |
| Length | 57.5 km (35.7 mi) |
| No. of tracks | Double track |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
| Electrified | Electrified 25 kV 50 Hz AC |
| Operating speed |
|
| Highest elevation | 580 metres (1,900 ft) |
| Tunnel clearance | 8.4 metres (28 ft) |
The Mont d'Ambin Base Tunnel, also known as the Mont Cenis Base Tunnel,[1] is the largest engineering work of the Lyon–Turin rail link project. Once completed, it will facilitate the principal high-speed rail link between Italy and France, conveying both high-speed passenger trains and rail freight between the two countries. At 57.5 kilometres (35.7 mi), that tunnel will be the longest rail tunnel in the world, ahead of the 57.1 km (35.5 mi) Gotthard Base Tunnel. It represents one third of the estimated overall cost of the project and is the only part of the line where work has started.
Crossing the Alps between the Susa Valley in Piedmont and Maurienne in Savoie.[2] It has an estimated cost of €8 billion.[3] During September 2016, a key agreement towards the tunnel's construction was reached by France and Italy. Three years later, competitive tenders to perform packaged elements of the construction work were sought. As of late-2022, the expected completion date for the base tunnel was 2032.[4]
- ^ Reina, Peter (16 June 2016). "After Earning World Record, Alpine Tunnels Move Ahead". Engineering News-Record. Retrieved 20 June 2016.
- ^ "The Alpine tunnels". LTF. Archived from the original on 31 October 2006. Retrieved 2 March 2012.
- ^ "The European Commission welcomes the agreement between France and Italy to move ahead with the Lyon-Turin project". Mobility and Transport - European Commission. 22 September 2016.
- ^ "TELT Lyon Turin • A new excavation front for the Lyon-Turin".