Ulla Viaduct

The Ulla Viaduct is a composite truss bridge that spans the Ulla river, in Galicia, northern Spain. It is a part of the Atlantic Axis, a high-speed rail line. It is composed of 3 main spans of 225 meters, 240 meters and 225 meters, making the principal span one of the largest in the world—the bridge also holds multiple records. The structure received several awards during construction for avoiding impact on local ecosystems.