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Experience

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GI-638 (Deba-Mutriku) highway improvement building project. Alkolea tunnel.

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 […]

Amended Project Nº1. Barcelona Orbital Dual Carriageway Section: Olesa de Montserrat-Viladecavals. Olesa Tunnel

The Olesa capital is part of the Barcelona Orbital Dual Carriageway construction project, in the section between Olesa de Montserrat and Viladecavalls. This is a two-way tunnel with two independent […]

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 […]

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 […]

Tunnel 11. Improvements to the Bogotá – Villavicencio Highway. Sector 3A

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, […]

Les Fosses Tunnel. L’Eix transversal split. C-25 Highway

Tunnel with a length of 453 m with an excavation section of some 84.47 m². Completed following the NATM, via blasting and mechanical means (backhoe) on fractured granite.

Amaña and Katillu Tunnels. Eibar N-634 (Phase 3) link road

Tunnels with a length of 225 and 165 m with an excavation section of some 150 m². Excavation with blasting and mechanical means (backhoe) on flysch type rock (rocks-loams-sandstone).
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