The pairing is what makes the spot unusual: a road crossing and a police post occupying the same stretch of riverbank, each built to manage movement and maintain order in the same era.

The bridge itself is a solid piece of provincial engineering. Constructed from random-rubble limestone, it carries a road on a north-south axis across the Awbeg, the same river that flows through Spenser's Faerie Queene under the name Mulla. Three segmental arches carry the span, their voussoirs, the wedge-shaped stones that form the curve of each arch, dressed and chamfered at the edges for a finish that goes slightly beyond the purely functional. On the upstream, western side, low pointed cutwaters project from the piers; these triangular projections divide the current and reduce the pressure of water and debris against the structure during floods. Vertical stone coping runs along the parapet walls, and piered abutments anchor both ends. The overall form suggests an early nineteenth-century date, placing it in the period when road improvement and the expansion of the constabulary network were both reshaping rural Ireland simultaneously. The barracks on the north bank would have depended on this crossing for supply and communication, which may well explain why the bridge exists where it does rather than somewhere more obviously convenient.