Risca Long Bridge was a fine masonry viaduct with thirty-two arches that was built in 1805 to carry a branch of the Monmouthshire Canal Company's tramroad across the Ebbw Valley flood plain. It was constructed from red pennant sandstone by John Hodgkinson. Following the opening of the Sirhowy railway, the long bridge was redundant by 1859 and was demolished in 1902. Local houses have been built from its stone and the east abutment is the only remaining fragment.

Claire Parry, RCAHMW, 27 June 2011.

Source: A Guide to the Industrial Archaeology of South East Wales, AIA, 2003