Roman Access Arch to the Bridge of Castellbisbal Monument · Castellbisbal, Vallès Occidental, Barcelona The Roman arch marking the approach to the Pont del Diable of Martorell is preserved on the left bank of the Llobregat river, already within the municipality of Castellbisbal. It was the monumental approach to a bridge built around 10 BC as part of the Via Augusta, 130 meters long, designed for the passage of ox carts. The arch, triumphal and honorific, probably from the 2nd century, preserves inscriptions of the legions that worked on its construction -the IV Macedonica, the VI Victrix and the X Gemina-, which allow it to be dated to around 9-8 BC. The bridge it gave access to was rebuilt in Gothic style from 1283, restored in 1768, destroyed in the Civil War in 1939, and rebuilt in the 1950s keeping its medieval appearance. Photo: Jaume Meneses (CC BY-SA 2.0) What to see and do in Castellbisbal