Elongated, spread earthwork of bridge abutment c22m x 8m, on line of road SE from fort, crossing river. NW extent of abutment unclear. Sources: see NPRN 89400 (bathhouse & other features to NW).

Associated with Roman road between Tomen-y-Mur & Caer Gai (RR68; Nprn303421): road section to SE = Nprn89468.