www.datwyler.com © 2008-2011 Datwyler. All rights reserved. 1 Vielha Tunnel in Catalonia is one of the most important traffic links between Spain and France, and to the relatively isolated Vall d ´Aran (Aran Valley). In December 2007, after only five years of construction, Juan Carlos I Tunnel was opened. It is 5,230 metres long and runs parallel to the old tunnel, which is now used only as an emergency exit and for transporting hazardous materials. The new tunnel is equipped with the latest technology and modern safety systems. The contract for the west section of the tunnel was awarded to the OHL Group, one of Spain's oldest construction, fran- chise, and service companies. The company has built all kinds of tunnels for many years, amongst them more than 60 with a

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