Neath Abbey Railway Viaduct (partly in Blaenhonddan community)

Railway viaduct over road and river valley. Squared coursed rubble stone with cut sandstone dressings. First arch over the road has cut stone voussoirs to an elliptical arch with broad stone piers each side and two-step cut-stone cornice broken forward around the piers under a high parapet with raised plinth and cut stone coping. Stonework under arch is skewed. Second arch is broader and shallower and there are no further raised piers. The piers between the subsequent arches are divided axially by a narrow arch, the second pier still on the high level has only an arch head visible from under the second arch but the three much taller arches of the gorge have the piers dramatically split as seen axially with tooled cut stone voussoirs and tooled stone to the piers of much finer quality than in the two end arches.