Drumagully Bridge, Burrenmore Rd, Castlerock, Co Londonderry, BT 51

An arched masonry bridge carrying a minor road over a stream at the north end of Downhill Forest. Except for its voussoirs, it is of random rubble basalt construction throughout. The arch springs directly from the rocky bed of the river and is of semicircular profile. Its voussoirs are of dressed sandstone with alternating stones slightly made longer and having ‘vermiculated’ faces; there are also similarly embellished triple keystones. The base of the arch has been concreted to prevent scouring. Both faces of the bridge curve outwards on either side of the arch to form square-cut piers which rise to form pedestrian refuges at road level. Each curved section contains a shallow semicircular-headed blind arch. The approach walls beyond the refuges also have blind arches, but of wider segmental profile. The voussoirs of all the blind arches are of roughly dressed basalt, without any embellishment. Three rubble stone buttresses shore up the approach wall at the NW end of the bridge. The original stone copings to the parapets appear to have largely been replaced with concrete. Setting The bridge sits at the north end of Downhill Forest and is surrounded by woodland to all sites. Just beyond its NW end is a picturesque waterfall on a stream which enters the main one a short distance downstream from the bridge. There is a public footpath into the glen at the SE end of the bridge. Schedule: Rubble basalt abutments Sandstone voussoirs