How much does the Lyon–Turin Mont-Cenis base tunnel section cost?
The Turin-Lyon high-speed railway is a new international rail line under construction between Turin and Lyon. Its core is the cross-border section from Saint-Jean-de-Maurienne in France to Susa/Bussoleno in Italy, built by the French-Italian promoter TELT, with the 57.5 km Mont-Cenis base tunnel as two parallel tubes. TELT reports that the cost was updated in 2024, after all civil-works contracts were awarded, to EUR 11.1 billion in 2012 prices, up from EUR 8.6 billion in the 2015 project budget, and plans commissioning at the end of 2033.
Published project estimate
€11.1 billion
Approximately $14.26 billion
Cost basis: 2012
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Cost evidence
Basis of the published figure
Published project estimate2012
Project record
Current completion estimate
TELT Lyon Turin2033