Infrastructure

Cidad Tunnel

The Cidad tunnel is an infrastructure belonging to the unfinished Santander-Mediterranean Sea railway line.

This railway had been designed to link the ports of Santander and Valencia, and was in operation for more than fifty years from Cidad-Dosante in Burgos to Calatayud, where it connected with the Ferrocarril Central de Aragón (Aragon Central Railway).

The project originated at the end of the 19th century, but did not come to fruition until 1920, when the State Government took up a previous study. The line opened to the public between 1927 and 1930. However, the connection with Santander never took place, despite the construction of the La Engaña tunnel that crossed the Cantabrian mountain range.

The line underwent shut downs and abandonment, and finally closed in 1985. It transported a wide variety of goods between the two ports, including coal, sand, wood, citrus fruits, cereals, livestock and building materials.

The section between Cidad/Dosante-Medina de Pomar is 28.8 km long along the river Nela valley. Along the entire route, users will find rest areas located in the old railway stations and this 211 m tunnel, which has been fitted out for pedestrians and cyclists. Although it is possible to get a glimpse of the exit, it is recommended to use a torch to walk through it.

Otros puntos de interés

• Bilbao - La Robla mining railway
• Old Dosante - Cidad station
• Viaduct over the river Nela
• Viaduct over the river Nela
• Viaduct over the river Nela
• Puentedey tunnel
• Viaduct over the river Nela
• Old Brizuela station
• Viaduct over the river Nela
• Old Escaño halt
• Viaduct over the river Nela
• Viaduct over the river Nela
• Viaduct over the river Nela
• Old Horna-Villarcayo Station
• Viaduct over the river Nela
• Old Medina de Pomar station