The first railway line in Galicia was inaugurated 15 September 1873. It ran from O Carril, Vilagarcía de Arousa to Cornes, Conxo, Santiago de Compostela. A second line was inaugurated in 1875, connecting A Coruña and Lugo. In 1883, Galicia was first connected by rail to the rest of Spain, by way of O Barco de Valdeorras. Galicia today has roughly 1,100 kilometres (680 mi) of rail lines. Several 1,668 mm (5 ft 5 21⁄32 in) Iberian gauge lines operated by Adif and Renfe Operadora connect all the important Galician cities. A 1,000 mm (3 ft 3 3⁄8 in) metre gauge line operated by FEVE connects Ferrol to Ribadeo and Oviedo. The only electrified line is the Ponferrada-Monforte de Lemos-Ourense-Vigo line. Several high-speed rail lines are under construction. Among these are the Olmedo-Zamora-Galicia high-speed rail line that opened partly in 2011, and the AVE Atlantic Axis route, which will connect all of the major Galician Atlantic coast cities A Coruña, Santiago de Compostela, Pontevedra and Vigo to Portugal. Another projected AVE line will connect Ourense to Pontevedra and Vigo.