Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 142,992 pages of information and 229,205 images on early companies, their products and the people who designed and built them.
The viaduct, at Lydbrook, Forest of Dean, Glos., came into use in 1874, and was demolished in 1965.
Clearly there are limits to the appeal of a demolished viaduct, but it is an interesting area to explore in the search for remains. For more information, see Lydbrook Iron Works.