Spain Alamillo Bridge Spain Arenteiro and Barbantiño Viaducts Spain Arnoia y Valenzana Viaducts Spain Azud de l´Or Bridge (Calatrava) Spain Bascule bridge of Barcelona Spain Concha de Artedo Viaduct Spain Construction of the Almonte Viaduct Spain Enhancement of The Tarragona Drawbridge Spain Ricobayo Reservoir Viaduct Spain Romeral Viaduct Spain Sella Viaduct