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    Gerediaga-Elorrio Highway

    The 6.44 km long highway, with separate dual carriageways the length of the route. A new link road connects the corridor with the N-636 near Muntsaratz, facilitating access to a new road to the towns of Abadiño and Atxondo.

    A large part of the route runs through tunnels. Gaztelua I and II are two tunnels of 594 m and 1,141 m, respectively. Between them is a 216 m-long artificial tunnel also, and there is also a 95 m false tunnel at Atxondo. 

    The main work also includes two viaducts, 865 m and 649 m long respectively, serving as the basis for the connection of the new infrastructure to the AP-8. One of these branches off to another smaller viaduct, 187 m long. 


    • Contract type: Design, construction, financing, operation and maintenance
    •  Infrastructure: 6.44 km highway with separate dual carriageways the length of the route.

    •  Year of completion: 2016

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