Vitoria – Bilbao – San Sebastián H.S. Railway Line
The segment has a total length of 3 km and it goes through the municipality of Elorrio (Bizkaia province) from West to East, one km away from the urban nucleus. The segment will link the three province capitals of the Basque Country. Therefore, 5 railway axes, 2 single-track platforms which become one double-track platform in the middle and 2 single-track platforms again in the last 200 m are designed for the 3 km segment. The design takes into account a very complicated orography, the severe slopes forced the design of 5 viaducts, some of them 500 m long and 75 m high (Zumelegui viaduct).