Fréjus railway tunnel
Fréjus railway tunnel
Key facts
Location
France, ModaneDelivery
December 2010
Customer
Réseau Ferré de France
Enterprise
Bouygues Travaux Publics
Modernization and adaptation to European standards
The Fréjus railway tunnel, or Mont-Cenis tunnel, is located on a strategic route for European trade, connecting Dijon to Turin via Modane. To ensure the development of passenger (Paris-Milan) and freight transit, Réseau Ferré de France entrusted Bouygues Travaux Publics with the modernization and European standardization of the 7-kilometer French section of the tunnel.
This major maintenance operation on a 14-kilometer tunnel under rail traffic involved lowering the tunnel level and re-centering the tracks. The creation of safety niches enabled the testing of a new technique, Demolition by Expansive Foam (DMX), which avoids the use of explosives.
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Key figures
- 7
- kilometers long
- 31
- fire hydrants
Gallery
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