North and Northwest corridor of Madrid-Galicia high-speed line. Lubián-Zamora section. Pedralba Pradería–Padornelo tunnel subsection
BUSINESS AREA:  Construction
PROJECT TYPE:  Railway tunnels
START DATE:  01 / 2010
END DATE:  In process
CLIENT:  Sociedad Estatal de Infraestructuras Terrestres
LOCATION:  Orense (Galicia)
LENGTH:  1.700m and 2.400m
SECTION:  86 m² - 75m