MadeDesign.com

Concrete Bridge Development Group - (CBDG)
Dedicated to the task of improving efficiency of the design, construction and maintenance of concrete bridges. Features research, publications, diary of events, and membership listing.
www.cbdg.org.uk/

King Bridge Company Museum
Research on Zenas King and the King Iron Bridge and Manufacturing Company of Cleveland, Ohio. Includes history, catalogues, photographs and links.
www.kingbridgeco.com/

King Iron Bridge Company
Company history and a salesman's catalog for ordering components.
web.ulib.csuohio.edu/

Album of Designs of the Phoenixville Bridge-Works
Facsimile of this 1873 publication of railway bridges. Produced by Clark, Reeves & Co. before change to Phoenix Bridge. Also available in pdf and tiff formats.
bridges.lib.lehigh.edu/

Wrought Iron Bridge Company
Facsimile of the Illustrated pamphlet of wrought iron bridges built by this Ohio Company.
bridges.lib.lehigh.edu/

Album of Designs of the Phoenix Bridge Company
Facsimile of this 1885 publication. Also available in pdf and tiff formats.
bridges.lib.lehigh.edu/

Berlin Iron Bridge Company
Fabricator of metal-truss bridges in the 19th century. Features history, the Company's patented lenticular truss, and list of remaining Berlin bridges in Connecticut.
www.past-inc.org/

Benjamin Franklin Bridge
Descriptive history and current conditions.
www.phillyroads.com/

Sydney Harbour Bridge
City of Sydney provides a photograph and history extracted from Graham Jahn's 'Sydney Architecture'.
www.cityofsydney.nsw.gov.au/

Quebec Bridge Failure
Essay describing the events leading to the failure of the Quebec bridge.
www.uh.edu/