FCC Construcción has started to bore the second tube one of the most important and complex works on the future Madrid - Castile La Mancha - Valencian region - Murcia region high speed line for Adif. This is the second longest tunnel tube on the 914 km line, located in the Sierra de la Cabrera on the section between Siete Aguas and Buñol in the province of Valencia.

At 7,250 m, the La Cabrera tunnel is the longest on the line linking Madrid with the regions of Valencia and Murcia. It consists of two circular tubes with an internal diameter of 8.75 m. The first tube has already been bored in a record time (breaking the world record for daily progress - 83.2 m and 52 concrete rings installed - on five occasions). Once the first tube was finished, the boring machine had to be dismantled and re-installed for the second tube, to be bored using a similar method as for the first one, excavating in carbonate rocks (limestones, dolomites, marly limestones, etc).

This work will be co-financed by the Cohesion Fund through the P.O. Cohesion Fund - FEDER 2007-2013 at a rate of 80%.