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 in length. In a tunnel test by the European Tunnel Assessment Programme in 2005 it was rated as "good" – the second-highest grade out of five.
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