Ponte Nova da Cava da Velha is an old Roman bridge in Portugal . It is located in Viana do Castelo District , over the Castro Laboreiro River , on the perimeter of the Peneda-Park, 3 km south of Castro Laboreiro . [1] The structure does not appear in the two most comprehensive lists of Roman bridges. [2] [3] Photos: Celso Gonçalves Roc2c Texto: http://pt.wikipedia.org