| Sierre Tunnel | |
| Location: | Sierre, Valais, Switzerland |
| Coordinates: | 46.284°N 7.532°W |
| Route: | A9 Autobahn |
| Opened: | 1999 |
| Length: | 2,460 metres (8,070 ft) |
| Grade: | Good |
The Sierre Tunnel (French: Tunnel de Sierre) is a tunnel near Sierre in the Swiss canton of Valais. It is part of the A9 Autobahn and is located between Sierre and Sierre-Est-Ouest.
The tunnel was opened in 1999 and consists of two tubes of 2,460 metres (8,070 ft) in length. In a tunnel test by the European Tunnel Assessment Programme (EuroTAP) in 2005 it was rated as "good" – the second-highest grade out of five.[1]
The two tubes consist of four linked tunnels, namely,
The Sierre Tunnel came to international attention in March 2012 after a coach crash inside resulted in the deaths of 28 people, including 22 children, who were returning to Belgium from a school skiing holiday.[2]