Ballynallon Bridge

Four-arch limestone road bridge over Annalee River, built c.1830. Segmental arches with punch-dressed ashlar voussoirs. Ashlar V-cutwaters with half-pyramidal caps. Spandrels and parapet of roughly coursed squared limestone. Rock-faced coping of large limestone blocks with dressed edging on oversailing river faces. Battered base to ramped approach. Separate single-arch bridge over mill race close to former Ballynallon Mills, to north.

A finely constructed bridge with contrasting material textures, seen particularly in the rusticated treatment of the coping, the textured rubble faces, and the fine ashlar voussoirs, which demonstrate careful design consideration and expert workmanship. It forms a group with the nearby Ballynallon Mills and associated mill-race bridge which is a reminder of the harnassing in the past of the fast-flowing Annalee River for power generation.