Ballinderry River Bridge, Clontarriff Rd, Ballinderry Upper, Lisburn, Co Antrim, BT28

This small un-named triple-arch masonry bridge carrying a minor single-lane road over the Ballinderry River just south of the main Ballinderry-Lisburn road. It is constructed of random rubble masonry throughout except for its abutments which are of squared random rubble brought to courses. There are angled cutwaters on its upstream (E) and downstream (W) elevations, rising to arch spring level. Its three arches are of segmental profile with roughly dressed voussoirs. The middle arch is wider and higher than the end ones, causing the deck to be slightly humped. The soffits have been gunited. The parapets are coped with fieldstones set at regular intervals (in cement mortar).