Bonamargy Bridge, Bonamargy, Ballycastle, Co Antrim

3 arch stone bridge over the Margy River. A pinkish sandstone built bridge with 3 segmental arches, each spanning approximately 9 metres, springing from vertical masonry supports with semi-circular breakwaters up and downstream. The arch vaults of the bridge are on a slight skew. A broad stringcourse traverses the springing line and round the breakwater which are topped with a half truncated cone with capping piece. Arches have well shaped and formed voissoirs and walls built in ashlar work in large stones. A plain weathered stringcourse undercut with bold cavetto traverses the bridge walls above the voissoirs and the parapet wall some 47 metres long on upstream side and 10 metres longer on downstream side. The abutments of the bridge are terminated with double unbattered buttresses widely spaced. The bridge has a carriageway of 7 metres with single footpath on the downstream side.