Madrid–Galicia high-speed rail line

The line shares the same railway for the section between Madrid and Olmedo with the Madrid–León high-speed rail line. This part was inaugurated on 23 December 2007 along with the entire section Madrid–Segovia–Valladolid. Construction on the section between Ourense and Santiago de Compostela started in 2004 and the 87.1 km part was completed and connected with the Atlantic Axis high-speed rail line in Santiago de Compostela on 10 December 2011. This part of the line has a track gauge of 1,668 mm (5 ft 5 ²¹⁄₃₂ in) Iberian gauge, which is due to be converted to 1,435 mm (4 ft 8 ¹⁄₂ in) standard gauge later.[1] As of November 2015, trains in Alvia commercial service use this part on routes between Galicia and other Spanish regions.

In July 2015 it was announced that the traction power supply for the Olmedo-Pedralba de la Pradería (near Puebla de Sanabria) section would be switched-on on 7 August 2015.[2] The 99 km southern section, between Olmedo (130 km north of Madrid on the Madrid–Leon line) and Zamora entered revenue service on 17 December 2015 and initially served by Alvia trains.[3][4] In January 2017 it was announced that the boring of the Bolaños tunnels along the Verín - Ourense section of the line was completed.[5] The central part, which crosses some of Spain's most remote and fragile natural areas, was initially expected to open in 2018,[6][7] but has again been delayed to 2022.[8] The 110 km new built section between Zamora and Otero de Sanabria (near Puebla de Sanabria) was completed at a cost of 898 million euros and put in service on 26 October 2020. It is capable for speeds up to 300 km/h. The new high-speed rail station in Sanabria is expected to be completed in December 2020.[9]

In July 2013, an S730 train derailed in a non-LAV (conventional line) stretch near the Santiago de Compostela station.