

Opened in 1858, the railway viaduct was one of the three main large-scale works carried out in the town during the mid-19th century, alongside the train station and the tunnel. The viaduct, which is said to have been a remarkable feat for its time, towers 50 metres above the Valserine. It was built by a large number of foreign workers, most of which were Italian (PNRHJ - Un tour en ville, “A tour of the town”)