Bridges and walkways Pont del Riu Sec Metalic walkways, Biarritz Bridge amplification, Badia del Vallès Calculation of stirrups, Tarragona Walkway, Sant Andreu de la Barca Floodable ford, Molí Fariner Floodable ford, Can Carreras Floodable ford, Badia del Vallès N-230b Viaduct, Xerta