ESP +34 944 240 835 Gran vía 53, 3º Dcha - 48011 Bilbao HOME ABOUT US EXPERIENCE ACTIVITY FACILITIES MACHINERY CONTACT DOWNLOADS Caverns Nortunel > Activity > Underground works > Caverns Caverns Large dimensional excavations, on many occasions in difficult and demanding situations, such as urban works. Nortúnel taken part in the construction of various sections of the Bilbao metro system, including excavation, support and final coating of the caverns at various stations with architectural finishes, and the use of heavy shearers for excavation. RELATED PROJECTS Line 3 Bilbao Metro. Etxebarri – Txurdinaga Section. Completion of 2180 m of two-way tunnels on Line 3 of the Bilbao Metro between Etxebarri and Txurdinaga, with two cavern stations and the corresponding access cannons and lift shafts, […] Line 2 F.M.B. Portugalete – Santurce Section Completion of 1,699 m of two-way tunnels on Line 2 of the Bilbao Metro between Portugalete y Santurce with two cavern stations and the corresponding access cannons and lift shafts, […] 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, […] Safety, quality and protection of the environment for commitment to and satisfaction of our customers. BROWSING MENU Home About us Experience Activity Civil works Roads Railways Metro–Urban tunnel Hydraulics Underground works Tunnels Wells Caverns Galleries Mining Conservation and maintenance Facilities Machinery Contact Downloads ESP CONTACT INFORMATION Gran vía 53, 3º Dcha – 48011 Bilbao +34 944 240 835 info@nortunel.com Copyright 2020 Nortúnel, All rights reserved. | Condition of use This website uses its own and third-party analysis cookies to gather information in order to improve our services, as well as for browsing analysis. If you continue to browse, you accept their installation. The user can configure their browser and, where they choose, can prevent them from being installed on their hard drive, although they must take into account that this may create browsing difficulties for this webpage.AcceptConfiguration guide