Bolaños tunnel has been completed

Bolanos-c1

Bolaños Tunnel joint venture (formed by FCC Construcción, Acciona, Cyes Infraestructuras y Construcciones Llorente) has completed the boring of the Bolaños 2nd tunnel, located on the Madrid-Galicia High-Speed Line. Bolaños tunnels are two parallel single-track tunnels, each 6,7 km long, bored by means of a TBM. Excavation diameter is 9900 mm, and precast concrete segments are 370 mm thick.
Bridge Technologies has designed the precast concrete segments of the tunnel, and the cut and cover tunnels located at its extremes.