The Montabliz Viaduct is located on the A-67 highway in Cantabria, Spain, ensuring that traffic flows uninterrupted through the Bisueña River valley. This structure features the tallest pier ever built in Spain, standing 130 meters high.
The The viaduct is about 720 meters long, divided into 5 sections, with a 175-meter central span. The Montabliz Viaduct features a maximum slope of 5.6%.
The plan view of this viaduct is curved, featuring a a radius of about 700 meters and a Camber of an 8%.
For the construction of the Montabliz viaduct, prestressed concrete continuous beams were used, built using the successive cantilever advancement technique, since using formwork was not a viable solution. The piers of this highway viaduct were constructed using the technique of self-climbing formwork.
Construction of the viaduct began in 2002, and the project had to overcome the the area's challenging topographical conditions, and it was inaugurated in January 2008.
One of its The stacks are 130 meters high, making it the highest in Spain. The The total height of the viaduct is about 145 m.
In 2010, this viaduct won the Segovia Aqueduct Award.
