Furka Summit Tunnel
The 374th longest tunnel in the world
The Furka Summit Tunnel (Furka-Scheiteltunnel) is a 1.86 kilometres (1.16 mi) long railway tunnel in southern Switzerland. It lies at an altitude of 2,160 metres (7, 090 ft). The summit tunnel was completed in 1925, and first opened on 3 July 1926. It links the Furka railway station, in Uri, with the Muttbach-Belvédère halting point, in Valais. Until 1982, when the summit tunnel was replaced by the Furka Base Tunnel, the railway line passing through the summit tunnel was part of the Furka Oberalp Bahn (FO). However, that line, which, along with the summit tunnel, was closed in 1981 and reopened in 2000, is now part of the Furka Cogwheel Steam Railway, a heritage railway operating in summer only.
Tunnel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).