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Oneota Riverview Trail Bridge

Iowa Bridge Number 3480

   


Oneota Riverview Trail Bridge

Primary Photographer(s): Nathan Holth and Rick McOmber

Bridge Documented: June 30, 2009 and August 9, 2013
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Key Facts

Facility Carried / Feature Intersected
Oneota Riverview Trail Over Dry Run (Drainage Channel)
Location
Decorah: Winneshiek County, Iowa
Construction Date and Builder / Engineer
1948 By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
90 Feet (27.4 Meters)
Structure Length
92 Feet (28 Meters)
Roadway Width
18.7 Feet (5.7 Meters)
Spans
1 Main Span(s)
NBI Number
3480

Historic Significance Rating (HSR)

Bridge Documentation

View Archived National Bridge Inventory Report - Has Additional Details and Evaluation

This bridge is a traditionally composed riveted truss bridge in Iowa. It conforms to a standard plan and a number of bridges similar in design to this one remain in Iowa, although the exact size and configuration varies from bridge to bridge making each bridge unique in some way.

This bridge crosses a concrete channelized run on the western edge of Decorah. Visible from this bridge is the dramatic landscape of the Hog's Back Bridge, rock cliff, and small waterfall.

At the very least, the best representative examples of standard plan truss bridges such as this one should be highlighted for preservation to retain a record of this period in history. Longer spans, multi-span examples, and unaltered examples should receive preservation priority.

In reality however, the majority of these bridges are fully capable of being rehabilitated for continued rural vehicular use and there is no reason to even consider the demolition of these bridges whether highly noteworthy or not. Many of Iowa's truss bridges are on rural dirt roads that have not been exposed to the extremely corrosive de-icing salt that bridges in other states have suffered from. As a result, they retain a comparatively high degree of structural integrity due to a striking lack of pack rust and section loss. In addition, these bridges were built with a higher quality of materials and construction than any modern bridge (contrary to what AASHTO would have you believe). These truss bridges are much more beautiful than any modern bridge. They contribute to the Iowa landscape in a positive manner and are an asset to the state.

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Photos and Videos: Oneota Riverview Trail Bridge

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