Two 9.5-km tunnels excavated with double shield tunnel boring machines. The $247-million project consisted of the construction of twin tunnels, with galleries between them every 250 m.
Design and construction for the connection in Bologna of the Milan to Naples high-speed rail line, enabling the Milan-Naples high-speed train to cross through the city centre of Bologna.
This €280-million project involved the construction of the suburban rail line between Málaga and Fuengirola.
ACCIONA Infrastructures is a leader in underground projects and has carried out a wide variety of projects with considerable expertise in tunnels.