Sierre Tunnel

The Sierre Tunnel () 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.

The two tubes consist of four linked tunnels, namely,

• Alusuisse Ã¢Â€Â” 1,070 metres (3,510 ft),
• Contoured Ã¢Â€Â” 620 metres (2,030 ft),
• Crête Plane Ã¢Â€Â” 180 metres (590 ft), and
• Ancien Sierre Plant Composition Ã¢Â€Â” 580 metres (1,900 ft).

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.

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