- According to the text, what was the purpose of the viaduct? What problem would the viaduct solve?
- Who was Kate Shelley, and why was the bridge named after her?
Jackson, Robert W., "Chicago & Northwestern Railroad Viaduct, Spanning Des Moines River at Chicago & Northwestern Railroad tracks, Boone, Boone County, IA," Historic American Engineering Record, National Park Service, August 1995. Courtesy of Library of Congress