description Fréjus Rail Tunnel Overview
The Fréjus Rail Tunnel is a railway tunnel beneath the Alps connecting Modane in France with Bardonecchia in Italy. Opened in 1871 and approximately 13.7 km long, it was one of the earliest major tunnels driven through the Alpine barrier. It forms part of the historic Mont Cenis railway route and enabled trains to cross between the two countries without using the exposed mountain pass.
help Fréjus Rail Tunnel FAQ
When was the Fréjus Rail Tunnel officially opened?
The Fréjus Rail Tunnel was officially opened in 1871, making it one of the earliest major tunnels driven through the Alpine barrier. Its construction was an unprecedented engineering achievement that connected emerging European rail networks.
How long is the Fréjus Rail Tunnel?
The Fréjus Rail Tunnel stretches approximately 13.7 kilometers, which is about 8.5 miles in length. It bores deep beneath the Alps to directly connect Modane in France with Bardonecchia in Italy.
Is the Fréjus Rail Tunnel still used for passenger trains today?
While it was initially built for heavy rail traffic, the original Fréjus tunnel's usage has declined in favor of the newer Fréjus Road Tunnel and other modern rail routes. It is mostly utilized for localized freight transport rather than high-speed passenger services.
What historic engineering technology was used to dig the Fréjus Rail Tunnel?
The tunnel was carved using early pneumatic drilling technology, specifically the innovation of compressed-air rock drills. This massive undertaking was spearheaded by Italian engineers Germain Sommeiller, Severino Grattoni, and Sebastiano Grandis.
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