Please visit the sites below for additional information about John Roebling and his work:
Visit: Allegheny Portage Railroad National Historic Site, where John A. Roebling first tested his wire rope. www.nps.gov/alpo
Visit: Steelworks, A Museum of Industry and Culture, about CF & I, the company that purchased the Roebling Company. www.steelworks.us
Visit: A Web site in Germany about the Roebling bridges.