Pont Pen-y-benglog

The original bridge is the small single-span segmental-arched rubblestone structure on the eastern side, now denuded of its road surface. This was superseded by the larger and higher structure following the curve of the road immediately to its west (see History), built of irregularly coursed rubblestone with slate string course and slate coping to parapet; wide single-span segmental arch with voussoirs and very simple tapering pilaster buttresses to each side. The eastern side of this bridge is completely hidden by the mid-C20 widening on the eastern side directly above the small C18 bridge; the C20 work is of roughly coursed rubblestone, the arch following the shape of Telford's bridge to the west; string course and regular pilaster buttresses to straight parapet on this side.