- Who
- Gotthard Rail Tunnel
- What
- 57 kilometre(s)
- Where
- Switzerland ()
- When
The longest rail tunnel is the Gotthard Rail Tunnel, at a length of 57 km (35.42 mi), running between Göschenen with Airolo in Switzerland, and opened on 1 June 2016.
The tunnel's excavation was completed on 15 October 2010, when engineers working 2,000 m (6,561.67 ft) beneath the Swiss Alps drilled through the last remaining rock. The tunnel is anticipated to accommodate up to 300 trains per day.
