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: […]
Tunnel 11 has a mine length of 412 m with an excavation section of some 104 m². Excavation has taken place along the terrace with thickness that exceeds 90 m, […]
Improvements to the GI-638 highway between Deba and Mutriku requires the building of the de Alkolea tunnel. Its total length is 106 m, of which the central section is 80 […]
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