It is the most emblematic work of the old Alar-Santander railway that was built by the Ferrocarriles de Isabel II company and it was the first large viaduct built in Spain since it measures 123 meters.
The civil work was solemnly completed on 11/10/1856, with the inspector of the railway district, Antonio Arriete, and the chief engineer of the Martín Ucearte line, who placed the key voussoirs to close the structure, an event that was also carried out on the nearby bridge over the river. Izarilla.