Pont Sarn-Ddu (also known as 'Roman Bridge')

Pont Sarn-Ddu, also known as the 'Roman Bridge', is a clapper bridge with eight spans, measuring approximately 18 meters in length. It features long parapetted approaches of a similar length that rise slightly at both ends of the bridge. The structure is supported by rectangular rubble piers, which are rounded upstream to act as cutwaters, and has massive lintels made of slatestone. The downstream piers have slatestone projections on their northern and southern inner faces, positioned halfway up, which may have originally supported timber struts. The two northernmost piers and their abutments seem to have been rebuilt. Above the bridge, there are modern concrete kerbs and low slatestone copings for a steel balustrade, which includes a simple datestone from 1955. The rubble approach parapets are topped with roughly-dressed slate-slab copings and are slightly splayed at the southern end.