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Home > Iowa > Steamboat Rock vicinity > Hardin City Bridge, Pedestrian area beside County Road, Steamboat Rock, Hardin County, IA



B&W Photos
Elevation From South
HB417491
Elevation From South
3/4 View From East
HB417492
3/4 View From East
Barrel View From East
HB417493
Barrel View From East
Close Up Of East End Top, From East
HB417494
Close Up Of East End Top, From East
Barrel View From Mid Span, From East
HB417495
Barrel View From Mid Span, From East
Elevation Of Truss Panel, From South
HB417496
Elevation Of Truss Panel, From South
Detail Of Northeast Top Corner, From Southwest
HB417497
Detail Of Northeast Top Corner, From Southwest
Detail Of Bottom Connection, From Southeast
HB417498
Detail Of Bottom Connection, From Southeast
Detail Of Bottom Connections, From Southwest
HB417499
Detail Of Bottom Connections, From Southwest
Southeast Corner Bearing Plate, From Southeast
HB417500
Southeast Corner Bearing Plate, From Southeast
Underside, From West
HB417501
Underside, From West
Detail Of Transverse Beam On Underside, From East
HB417502
Detail Of Transverse Beam On Underside, From East


Data Pages


Drawings


Photo Caption Pages


Item Title


Location
Pedestrian 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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