Castlemahon Bridge

Freestanding five-arch humpback road bridge, built c. 1800, spanning the River Deel with additional overflow arch to north-east. Camber-headed arches with tooled limestone voussoirs and dressed rubble stone soffits springing from dressed rubble stone piers with recent render reinforcement to base. Tooled limestone V-cutwaters with dressed stone capping to upstream (south-east) elevation. Rubble stone spandrels and abutments surmounted by rubble stone parapets with dressed limestone coping. Rubble stone piers to termini of parapet walls having dressed stone capping. Recent galvanised iron brackets supporting service pipes to south-east elevation. Recent rendered retaining wall to south-west embankment. Tarmac carriageway over bridge.

This well executed bridge is a fine example of early nineteenth-century bridge engineering methods, being referred to in Lewis’s Topographical Dictionary of 1837, as 'a good stone bridge'. Well executed limestone arches and V-cutwaters attest to the skill of the bridge's builders and stone masons and create a pleasing contrast against the main rubble stone fabric of the bridge.