Hardin City Bridge

Photos 

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Elevation From South Photo by Joe Elliott, Summer 1995, for HAER View photos at Library of Congress

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3/4 View From East Photo by Joe Elliott, Summer 1995, for HAER View photos at Library of Congress

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Barrel View From East Photo by Joe Elliott, Summer 1995, for HAER View photos at Library of Congress

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Close Up Of East End Top, From East Photo by Joe Elliott, Summer 1995, for HAER View photos at Library of Congress

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Barrel View From Mid Span, From East Photo by Joe Elliott, Summer 1995, for HAER View photos at Library of Congress

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Elevation Of Truss Panel, From South Photo by Joe Elliott, Summer 1995, for HAER View photos at Library of Congress

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Detail Of Northeast Top Corner, From Southwest Photo by Joe Elliott, Summer 1995, for HAER View photos at Library of Congress

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Detail Of Bottom Connection, From Southeast Photo by Joe Elliott, Summer 1995, for HAER View photos at Library of Congress

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Detail Of Bottom Connections, From Southwest Photo by Joe Elliott, Summer 1995, for HAER View photos at Library of Congress

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Southeast Corner Bearing Plate, From Southeast Photo by Joe Elliott, Summer 1995, for HAER View photos at Library of Congress

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Underside, From West Photo by Joe Elliott, Summer 1995, for HAER View photos at Library of Congress

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Detail Of Transverse Beam On Underside, From East Photo by Joe Elliott, Summer 1995, for HAER View photos at Library of Congress

Map 

Vicinity map Map links: Google Maps Yahoo! Maps TopoZone Terraserver USA

Facts 

Overview

Bridge over Slight Depression on Pedestrian Walkway in Steamboat Rock (vacinity)

Location

Steamboat Rock (vacinity), Hardin County, Iowa

History

Built 1879; Replaced 1982; Relocated 1989 to a location one mile from its original location

Builders

- Passaic Rolling Mills
- Western Bridge Works

Design

"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.

"In April of 1879 the suprevisors awarded the contract to Western Bridge Works of Fort Wayne, Indiana. Using cast-iron joint blocks and wrought-iron structural sections produced by the Passaic Rolling Mills of Peterson, New Jersey, and the Pottsville (Pennsylvania) Rolling Mills, Western Bridge completed its erection of the 140' pin-connected truss late that year at a cost of $3145.38.

"This document was prepared as part of the Iowa Historic Bridges Recording Project performed durng the Summer of 1995 by the Historic American Engineering Record (HAER). The project was sponsored by the Iowa Department of Transportation. (IDOT). Preliminary research on this bridge was performed by Clayton B. Fraser of Fraserdesign, Loveland, CO."

Historian: Leslie Pitner, August 1995
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Dimensions

Total length: 140 ft.
Deck width: 16 ft.

Approximate latitude, longitude

+42.44688, -93.10774   (decimal degrees)
42°26'49" N, 93°06'28" W   (degrees°minutes'seconds")

Approximate UTM coordinates

15/491139/4699400 (zone/easting/northing)

USGS topographic map

Popejoy, Iowa UTM: 15.491140.4699400

Inventory number

BH 37388 (Bridgehunter.com ID)

Categories 

Update Log 

• September 9, 2008: Added by J.R. Manning

Sources 

• J.R. Manning - thekitchenguy [at] sbcglobal [dot] net
• HAER IA-57 - Hardin City Bridge

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