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Boone vicinity

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Chicago & Northwestern Railroad Viaduct, Spanning Des Moines River at Chicago & Northwester, Boone, Boone County, IA



B&W Photos

HB417065

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Item Title


Location
Spanning Des Moines River at Chicago & Northwester, Boone vicinity, IA

Find maps of Boone, IA


Created/Published
Documentation compiled after 1968.

Notes
Survey number HAER IA-44
Unprocessed field note material exists for this structure (N216; N656).
Building/structure dates: 1901 initial construction
National Register Number: 78001207
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.

Related Names
Morrison, George
Chicago & Northwestern Railroad
American Bridge Company


Collection
Historic American Engineering Record (Library of Congress)

Contents
Photograph caption(s): 
1. LONG SHOT FROM SOUTHWEST
2. 3/4 VIEW FROM NORTHWEST
3. 3/4 VIEW FROM SOUTHWEST
4. 3/4 VIEW OF TRUSS, FROM SOUTHWEST
5. 3/4 VIEW OF TRUSS, FROM SOUTHWEST
6. DETAIL OF WEST PIER AND TRUSS, FROM SOUTHWEST
7. DETAIL OF WEST PIER SUPPORTING TRUSS, FROM SOUTHWEST
8. ELEVATION OF TRUSS, FROM NORTH
9. ELEVATION OF TRUSS, FROM NORTH, WITH TRAIN
10. ELEVATION OF TYPICAL BENT, FROM SOUTH
11. ELEVATION OF TYPICAL BENT, FROM EAST
12. LOOKING UP AT SIDE OF BENT, FROM SOUTH
13. TYPICAL STONE PIER, FROM SOUTHWEST
3/4 VIEW FROM NORTHWEST
ELEVATION OF TRUSS, FROM NORTH, WITH TRAIN


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