Ballynameen Bridge, Carnhill Road, Garvagh, Coleraine, Co Londonderry, BT51

Ballynameen Bridge is a triple-arch masonry road bridge built in the 1840s, carrying the Coleraine–Maghera road over the Agivey River at the south end of Garvagh. It is constructed of squared random rubble basalt and represents a fine example of mid-19th-century bridge engineering, notable for its architectural style, proportioned design, and decorative detailing.

The bridge has three equi-sized segmental arches with semicircular cutwaters at both piers. These cutwaters rise to arch spring level and are finished with oversailing domed sandstone caps. Dressed sandstone string courses continue from the caps through all three arches. The arches themselves feature finely dressed sandstone voussoirs and soffits. The basalt work is slightly battered to both faces.

Shallow pilasters rise from the tops of the parapets above the abutments and piers. The parapets are of quarried rubble basalt with chamfered sandstone string courses along the base of their external faces. The downstream (east) parapet has projecting sandstone copings with curved tops. The upstream (west) parapet is higher and has been rebuilt with ribbon-pointed basalt and concrete coping. Both sets of copings have been painted, and planters have been placed along the upstream parapet. The terminal piers at both parapet ends project outwards, aligned with the pilasters.

The flat deck carries two lines of traffic with a footpath running along the upstream side. Metal floodlights have been affixed just above the crowns of the end arches on their downstream faces and above the middle arch on its upstream face.

The bridge is of local historical significance as a tangible reminder of the realignment of the main Garvagh–Maghera road undertaken at the same period. Historical records indicate that an earlier bridge existed at this location and was widened to 20 feet in 1818 at the expense of County Londonderry. The present bridge, however, was constructed between 1838 and 1848, likely financed through the County Londonderry Grand Jury. The realignment of the main road, which curved southeast along what is now Kurtin Road before the construction of the present bridge, was reconfigured to contour around the west side of Ravelin Hill, a change that became possible with the new bridge's construction.

The setting includes a rubble masonry archway erected in the recent past beyond the south end of the upstream parapet, providing access to a footpath running upstream along the right bank. A car park is situated just beyond the northwest end of the bridge. A sloped masonry vee weir runs downstream from the north abutment; there formerly ran a race from its far end to a grain mill at Killyvally Bridge. A flat tarmacked area delineated by a rubble masonry wall along Kurtin Road runs along the right bank on the bridge's downstream side.