Chicago & Northwestern Railroad Viaduct, Spanning Des Moines River at Chicago & Northwestern Railroad tracks, Boone, Boone County, IA
Summary
Significance: This bridge is one of the last projects of noted bridge engineer George Morison, who died two years after the structure was built. The bridge was the longest and heaviest viaduct of its time, and may be the longest extant double-track railroad viaduct in the world. It is listed in the National Register of Historic Places.
Unprocessed Field note material exists for this structure: N216
Unprocessed Field note material exists for this structure: N656
Survey number: HAER IA-44
Building/structure dates: 1901 Initial Construction
National Register of Historic Places NRIS Number: 78001207
Tags
Date
1901
Contributors
Historic American Engineering Record, creator
Morrison, George
Chicago & Northwestern Railroad
American Bridge Company
Location
Boone, 42.05970, -93.88023
Source
Library of Congress
Copyright info
No known restrictions on images made by the U.S. Government; images copied from other sources may be restricted. http://www.loc.gov/rr/print/res/114_habs.html