+34 944 240 835 Gran vía 53, 3º Dcha - 48011 Bilbao


List Map

Line 2 F.M.B. Sestao – Portugalete Section

Completion of 1,761 m of two-way tunnels on Line 2 of the Bilbao Metro between Sestao y Portugalete with two cavern stations and the corresponding access cannons and lift shafts, […]

Nafarrondo quarry tunnel shaft system.

Innovative system in operation of quarries to eliminate waste of blasting materials on the front part of the quarry. It prevents the formation of dust and reduces the generation of […]

San Marcial Tunnel

Excavation and support of two parallel dual carriageway tunnels with hard shoulders, 1480 m each on the Eibar-Vitoria motorway.

Rigoitia tunnel shaft

Operation system of the quarry with a tunnel of 45 m² section and 87 m in length, which feeds to a 4 m diameter and 140 m depth shaft with […]

Leguizamón Tunnel

Excavation, support and coating of the Leguizamón tunnel in Bolueta belonging to Line 1 of the Bilbao Metro at the “Bolueta – Etxebarri” section, 70 m² section and 130 m […]
1 5 6 7