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Fair River Road Bridge

Iowa Bridge Number 178910

Fair River Road Bridge

Primary Photographer(s): Julie Bowers

Bridge Documented: Fall 2010

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Key Facts

Facility Carried / Feature Intersected
Fair River Road Over East Nishnabotna River
Near Atlantic: Cass County, Iowa: United States
Structure Type
Metal Bolt-Connected Double-Intersection Warren Through Truss, Fixed and Approach Spans: Metal Stringer (Multi-Beam), Fixed
Construction Date and Builder / Engineer
By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
150 Feet (45.7 Meters)
Structure Length
200 Feet (61 Meters)
Roadway Width
15.7 Feet (4.79 Meters)
1 Main Span(s) and 2 Approach Span(s)
NBI Number

Historic Significance Rating (HSR)
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Bridge Documentation

This bridge's future is at risk!

This bridge is a rare example of a double-intersection Warren truss bridge in Iowa. Double-intersection Warren truss bridges are rare in most of North America, however New York State and Ontario are two areas where the configuration is more common. Located far away from those areas, this bridge is rare both on a statewide basis and a greater regional basis as well.

The bridge is also rare for the early use of all-bolted connections. Although some of the bolts appear to have been replaced, the use of bolts for all connection points does appear to be an original detail, and is thus significant. Riveted connections were the standard during the period in which this bridge was built, which was likely in the 1895-1915 range, with the 1900-1910 range bring most likely.

The bridge superstructure appears to be in good condition overall. Some sections of the bottom chord appear to be bent from flood damage, but section loss and pack rust is minimal. The bridge has been closed to traffic for some time. If closure was due to structural deficiency, it would appear that such deficiency is isolated, since the overall bridge appears to be in decent condition. Restoration of this bridge either for light vehicular use or pedestrian use only should be both feasible and very cost effective. Given the significance of this structure, as well as a limited number of historic bridges in the county, the bridge should be given preservation priority.


Photo Galleries and Videos: Fair River Road Bridge

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