Home > Iowa > Steamboat Rock vicinity > Hardin City Bridge, Pedestrian area beside County Road, Steamboat Rock, Hardin County, IA
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Item Title
Hardin City Bridge, Pedestrian area beside County Road, Steamboat Rock, Hardin County, IA
LocationPedestrian area beside County Road,
Steamboat Rock vicinity, IA
Find maps of Steamboat Rock, IA
Created/Published
Documentation compiled after 1968.
Notes
Survey number HAER IA-57
Unprocessed field note material exists for this structure (N229).
Building/structure dates:
1879 initial construction
Building/structure dates:
1982
Building/structure dates:
1989
Significance: Configured as a pin-connected Whipple (or double-intersection Pratt) through truss, the Hardin City Bridge is one of only eight such structures remaining in Iowa. It is the only bridge in Iowa by the short-lived Western Bridge Works, Fort Wayne, Indiana. With its Whipple web configuration, cast-iron hip blocks and bearing shoes, and rolled wrought-iron components, the Hardin City Bridge typifies wagon bridge construction of the late 1870s.
Related Names
Passaic Rolling Mills
Western Bridge Works
Collection
Historic American Engineering Record (Library of Congress)
Contents
Photograph caption(s):
1. ELEVATION FROM SOUTH
2. 3/4 VIEW FROM EAST
3. BARREL VIEW FROM EAST
4. CLOSE UP OF EAST END TOP, FROM EAST
5. BARREL VIEW FROM MID SPAN, FROM EAST
6. ELEVATION OF TRUSS PANEL, FROM SOUTH
7. DETAIL OF NORTHEAST TOP CORNER, FROM SOUTHWEST
8. DETAIL OF BOTTOM CONNECTION, FROM SOUTHEAST
9. DETAIL OF BOTTOM CONNECTIONS, FROM SOUTHWEST
10. SOUTHEAST CORNER BEARING PLATE, FROM SOUTHEAST
11. UNDERSIDE, FROM WEST
12. DETAIL OF TRANSVERSE BEAM ON UNDERSIDE, FROM EAST
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