Infrastructure

Viaduct over the river Oca

Just at the exit of La Blanca railway tunnel, there is a viaduct over the river Oca, a tributary of the river Ebro.

This 42 m long infrastructure allows hikers and cyclists to cross the course of this small northern river that flows through the province of Burgos from the Montes de Oca, where it rises, to its mouth at the Ebro after a total distance of 70 km.

Its restoration process has allowed the installation of auxiliary structures, new metal railings and a wooden deck to adapt the bridge to its new use.

Along the route of the Santander-Mediterranean Sea railway line, more than a dozen tunnels and more than forty bridges were built, all of them of metal structure. The purpose of these infrastructures was to help the train to cross different orographic features.

The Santander-Mediterranean Sea railway line, designed to link the ports of Santander and Valencia, 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 was opened to the public between 1927 and 1930, although the connection with Santander never took place, despite the construction of the La Engaña tunnel that crossed the Cantabrian mountain range. In addition, the line underwent shut downs and abandonment, and finally closed in 1985.

During the rehabilitation of the Santander-Mediterranean Sea railway line in a Nature Trail, the old metallic railway bridges, which were in different states of conservation, have been rehabilitated and commissioned.

Otros puntos de interés

• Old Medina de Pomar station
• La Horadada Tunnel
• Valdamí tunnel
• La Blanca Tunnel
• Los Llanos Tunnel
• Túnel de la Rasa
• Old Oña station
• Viaduct
• Old Moneo Station
• Old Nofuentes station
• Viaduct over the river Nela in Trespaderne
• Old Trespaderne Station
• Trespaderne Tunnel
• Viaduct over the river Ebro in Trespaderne