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.

This article about a Swiss building or structure is a stub.