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Carbayín reinforcement works between kilometres 28/636 and 29/681 of the Laviana-Gijón Sanz Crespo 752 line. Carbayín Tunnel

The Carbayín is located at kilometre 28/634 on the Gijón Sanz Crespo – Laviana 752 line on the metric went network, with a section 4 a single lane electrified track, […]

Querol Port Improvements Construction Project. Section: Barranco de la Bota-Masía de la Torreta. Querol Tunnel

The N-232 highway in the section between Morella and Vinaroz, in the province of Castellón, currently improved, with the exception of the Querol Port section (between kilometres 46+300 and 54+900), […]

Ermua South Bypass Construction Project. Uretamendi Tunnel

The project involved the construction of the Uretamendi tunnel, made up of two parallel tunnels, one in each direction, with two carriageways on each. East Tunnel (axis 42): will have […]

Pacific 1 Motorway Connection. Functional Unit 2 and Functional Unit 3. Amagá Tunnel

The Pacific 1 Motorway Connection includes the construction of a new twin direction Road, starting in the municipality of Bolombolo and linking with the Ancón Primavera road approximately 5 km […]

Reinforcement of the cladding and adaptation of the installations in the tube towards San Sebastián, in San Lorentzo-Larre tunnel (A-15 Motorway)

The works to be carried out in the San Lorentzo Tunnel consisted of carrying out the following actions: Preliminary work: cleaning, excavation and scraping of the tunnel. Supporting the tunnel […]

Kortazar tunnel. Vitoria-Bilbao-San Sebastián High Speed Line

The Kortazar tunnel is located within the Mondragón – Elorrio – Bergara section, Sector 3, of the Vitoria-Bilbao-San Sebastián High Speed Line. The route runs from West to East and […]

Tunnels 1-2-3 Sector 1 Bogotá – Villavicencio Highway

This project is included in the Bogotá – Villavicencio Highway Improvements works, and includes the completion of three tunnels in Sector 1. El Tablón – Puente Téllez. Tunnel 1, known […]

Aduna Tunnel. New Railway Network in the Basque Country. Section: Zizurkil-Andoain

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 […]

Vilavella Tunnel. LAV Madrid – Galicia. Section: Canda – Vilavella Tunnel.

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 […]