Vitoria - Bilbao - San Sebastián Line
Main benefits of the line
When in service, rail journey times between the three Basque capitals will be reduced drastically. Most notably, the Vitoria-Bilbao and Vitoria-San Sebastián journey times will be reduced by around 60 per cent, and the Bilbao-San Sebastian journey time by 80 per cent.
This includes the section that integrates the railway in the city of San Sebastián. The section corresponding to Irun, which is not included in the informative study of the Basque 'Y' and which forms part of the international connection, will be developed by the Ministry of Development . Adif is also responsible for the track assembly, electrification, signalling, communications and other installations along the entire line. It has been designed with the technical parameters of a high-speed line, on double track of UIC gauge, with curves of a minimum radius of 3,100 m and maximum gradients of 15 thousandths of a metre, and for mixed traffic, which will allow the circulation of passenger and freight trains. Trains will be able to reach a maximum speed of 250 km/h.
In order to overcome major difficulties in crossing mountainous terrain, a great number of special structures have to be built. Viaducts and tunnels represent 60% of the Vitoria-Bilbao section, while in the case of the Gipuzkoa branch (including the Mondragón-Elorrio-Bergara rail junction to be undertaken by Adif) this proportion rises to around 80%.
The average number of unique structures along the entire line, be they tunnels or viaducts, is 70% of the route. Some of the most important tunnels are:
Algunos de los túneles más destacados son:
El trazado de 90,8 km que construye Adif entre Vitoria y Bilbao cuenta con un total de 44 viaductos y 23 túneles. El 20 y el 40 por ciento, respectivamente, de la longitud de todo el tramo discurre por estas estructuras.
Entre las infraestructuras del ramal construido por Adif, destacan el túnel de Albertia, que con 4,8 km es el más largo del proyecto, y el viaducto sobre la carretera A-2620, de 1.400 metros de longitud y pilas de hasta 90 metros de altura
11 julio 2025
Nota de prensa
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