1-527-700 - The Print Collector/Heritage Images

Iron bridge at Sunderland, 1886. The Wearmouth Bridge was the longest single span cast iron bridge in the world when it opened in 1796. British engineer Robert Stephenson did a major reconstruction of the bridge in 1857. Illustration from Cyclopaedia of Useful Arts, Mechanical and Chemical, Manufactures, Mining, and Engineering, by Charles Tomlinson, Volume I, (James S Virtue, London, 1886).