Portugal Vouga Line Narrow Gauge
The "Vouga Line" is the last remaining narrow-gauge line in Portugal that has passenger trains operated by Comboios de Portugal (National Passenger Railway of Portugal). The meter gauge line links Aviero and Espinho Vouga, although the section between Sernada do Vouga and Oliveira de Azeméis currently (2024) has no train service. At Sernada do Vougas, there is a interesting bridge that carries both road and rail traffic on the same deck.