Old Bridge, Drenagh Demesne, Broad Road, Limavady, Co Londonderry

This is a mid-18th century road bridge, now abandoned, and a notable example of its type due to its narrow width. It is constructed of rubble stone with a segmented arch, spanning six metres, rising from a vertical revetment approximately 900mm above the river bed. The original carriageway, including its parapets which are no longer present, was four metres wide. The arch is built of long, thin voissoirs set at right angles to the tangent. The bridge spans the Castle River approximately 40 metres downstream from Drummond Bridge. Historical maps indicate that the Drumsurn Road once passed under the Broad Road and was later raised to connect with it. The Broad Road was built in 1806, and its route was altered after 1860 to run to the south of the old Drumahose church. Drummond Bridge was reportedly constructed in 1821, suggesting that this abandoned bridge was the only crossing over the Castle River at that location. The bridge is situated within a romantic woodland setting within the grounds of Drenagh Demesne. The bridge is recorded as derelict and possesses industrial archaeological interest.