The greatest constructed railway tunnel in Spain for the passage of a High Speed train, inaugurated just over a year ago, is going to have to be reinforced. The tunnels of Guadarrama, opened in a hurry by the previous minister of Promotion, Magdalena Alvarez, for the passage of the AVE Madrid-Valladolid, the 22 of December of 2007, suffers water filtrations since last March, according to confirmed sources near Adif, the public society that manages railway infrastructures.
In particular one kilometer of the North entrance of one of the tunnels, i.e. the entrance located on the Segovia side, filtrations appeared as a result of the defrosting of the snow from last winter.
Although these leaks take place while the railway tunnels that are in operation, the situation forced Adif to contact with companies specialized in this type of deficiencies to realise "studies of preventive character", according to a statement.
The infrastructure manager wants to reinforce the measures of drainage and evacuation of waters coming from filtrations that exist at the moment in the Guadarrama tunnels.
The singularity of the orography of the tunnels, described by the public company like as "special characteristics", was one of the main causes of these filtrations. In the North side, that is the affected one by the leaks, an unevenness exists that, although with 0.002 likelihood, "tolerates a greater difficulty for the evacuation of waters coming from the filtrate", according to sources at Adif.
