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Item Title
LocationSpanning North Skunk River,
Montezuma vicinity, IA
Find maps of Montezuma, IA
Created/Published
Documentation compiled after 1968.
Notes
Survey number HAER IA-72
Unprocessed field note material exists for this structure (N243).
Building/structure dates:
1883 initial construction
National Register Number: 98000488
Significance: The McDowell bridge was was built in 1883, towards the end of the heyday of the use of bowstring arch-trusses. In the 1860s and 1870s bowstring arch-trusses were used extensively because of their great structural efficiency. The 1880s saw a shift towards the pin-connected trusses which offered greater lateral stability. The McDowell bridge is an excellent example of the work of the King Iron Bridge and Manufacturing Company, a major bridge fabricator who erected thousands of these type of bridges throughout the nation, including hundreds in Iowa. This bridge is also of interest for its use of the King Company's patented end support piers.
Related Names
King Iron Bridge & Manufacturing
King, Zenas
Collection
Historic American Engineering Record (Library of Congress)
Contents
Photograph caption(s):
1. ELEVATION FROM SOUTHEAST
2. 3/4 VIEW FROM SOUTHEAST
3. 3/4 VIEW FROM SOUTHEAST
4. BARREL VIEW FROM WEST
5. DETAIL OF NORTH TRUSS, FROM SOUTHWEST, VERTICAL
6. DETAIL OF CONNECTION AT UNDERSIDE OF TOP CHORD, FROM SOUTHWEST
7. DETAIL OF SOUTH TRUSS, FROM SOUTHWEST
8. DETAIL OF BOTTOM CONNECTIONS, FROM SOUTHWEST
9. DETAIL OF SOUTHEAST BEARING PLATE, FROM SOUTHEAST
10. DETAIL OF SOUTHEAST PIER, FROM SOUTHEAST
3/4 VIEW FROM SOUTHEAST
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