3 links
Bridge Signs
douglascoulter.com
Douglas Coulter's collection of bridge maker's plates from wrought iron bridges of Illinois. Also features photographs of covered and iron bridges, and bridge postcards.
China Bridge
pbs.org
Discover how China's Song dynasty during the eleventh and twelfth centuries used the high arch "rainbow bridge" to solve the problem of spanning a fast-moving river without impedi…
Historical Development of Iron and Steel in Bridges
kuleuven.ac.be
Reviews the development of steel bridge construction, demonstrating how improvements in methods and understanding of structural behaviour have enabled greater efficiency and longer…