Railway Viaduct (1), Bleach Green Junction, Newtownabbey, Co Antrim, BT37

A curved 13-span concrete viaduct carrying the double line Belfast-Londonderry railway over the Three Mile Water (here known as Valentine's Glen). It is of painted reinforced-concrete throughout, all cast in situ. The south most span has a horizontal slab deck head and carries the Belfast-Larne line through it at a highly skewed angle. The edge of the slab is inscribed 'LMS 1933 NCC' to both faces. The remaining 12 spans are of segmental profile and equal width. The two at the south end are blank as their 'infill' walls enclose the burrowing Larne line. The three arches across the deepest part of the valley are the widest; the south one spans the actual river. These arches have hollow spandrels in which two vertical slabs extend upwards from the extrados to underside of the deck on both sides of their crowns. These arches also have advanced piers which extend up to parapet level as pedestrian refuges. There are falsework sockets along the base of the piers to these three arches. The remaining arches have solid spandrels with banded rustication. This banding also continues around the top of each arch (and also signifies the depth of the arch cast) and around the piers. The parapets have been cast with vertically fluted panels along their outside faces and string course along their base. Cantilevered pedestrian refuges project from the parapets above each of the piers. There are advanced terminal piers at both ends of the viaduct.