Llandinam Bridge was erected in 1846 to the design of Thomas Penson, the county surveyor of Montgomeryshire, and cast by Hawarden Ironworks to replace an earlier bridge across the River Severn. This is one of the first iron bridges in the county and construction of the foundations and approaches was the first public contract for the famous industrialist, David Davies, who was born in Llandinam (his statue (nprn 32924) stands nearby). The bridge is of cast-iron construction comprising a single segmental arch spanning 27m. It has three ribs, each comprising an arch ring, above which are raking struts carrying the single carriageway deck which is some 3.4m wide.
(Source: Cadw listing description,11/26/1996)
B.A.Malaws, RCAHMW, 17 July 2008.