Afon Taff Viaduct

The Afon Taff Viaduct is a Grade II listed structure built from heavily rusticated stone, featuring smooth faced ashlar only in the original Brunel arch soffits. The stone used is conglomerate for the first two construction phases and likely limestone for the third. The viaduct is approximately 45 meters long and 7 meters high, consisting of five segmental arches supported by bull nosed piers, each topped with a roll moulded cornice. The upstream face has a concrete footbridge added, which is supported by the tops of the cutwaters. The soffits of the arches showcase the three construction phases: the original Brunel design, a widening on the downstream side, and a further widening on the upstream side.