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Construction of the widening and improvement of the N-121 from Behobia to Endarlatsa

Date 07/05/2007
Type of works Highway, Tunnels

Project description

These works consisted in the completion of a section of road 6620 m in length, with one carriageway in each direction. From a structural viewpoint, it included the completion of: The Endarlatsa viaduct, a singular structure with a parabolic arch of more than 90 m of light. The Lamiarri, Lastaola, Alunda and Gurutze viaducts; Intxaurreta, Gurutze and Etxezar underpasses and the Intxaurreta and Lamiarri false tunnels. Two105 m and 500 m length tunnels known as the Intxaurreta and Lamiarri tunnel. These works as a whole included completion of levelling for road building with 1,241,810 m² of excavation, completed using mechanical means and blasting.

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