The length of the Aduna Tunnel is 4690 m. Nortúnel excavated from the mouth on the Andoain side a mine tunnel with a length of 1479 m, with an excavation […]

The Vilavella tunnel comes with two tunnels with a length of 902 m and 869 m. Both tunnels have a single lane road, with a truncated circular section of 52 […]

The Hernani tunnel has a mine length of 749 m with an excavation section of some 120 m². It’s free section is 95 m². The materials that were cut through […]

The Olabarrie tunnel has a length of 986 m. It is a two-way tunnel with an 85 m² type section. The excavation takes place with perforation and blasting using mechanical […]

The two-way Urzelai tunnel has a 95 m² type section and a length of 575 m. This tunnel affects the cretaceous materials, both in the CLu formation (black lutites and […]

Tunnel with a length of 1,456 m with an excavation section of some 120 m². Completed following the NATM, via blasting and mechanical means (backhoe) on cemented conglomerates, clay and […]

The Aspe-El Carrús has a length of 3480 m, going through the municipalities of Aspe and Elche, in Alicante province. We can highlight two viaducts and a mine tunnel. The […]

The San Andrés tunnel is suitable for 653 m, with a 95 m² free section. Completed using conventional measures, via perforation and blasting on lutite and sandstone rocks. The supports […]

The Durango-Amorebieta/Etxano section is from kilometre point 0+000 (connection point with the Abadiño-Durango section) and 4+600 (connection point with the Amorebieta /Etxano-Amorebieta/Etxano section), with a length of 4.6 km. The […]