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Winneshiek Slough Bridge

   


Winneshiek Slough Bridge

Primary Photographer(s): Nathan Holth and Rick McOmber

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

Location
Rural: Crawford County, Wisconsin
Structure Type
Metal Continuous 10 Panel Rivet-Connected Warren Deck Truss, Fixed and Approach Spans: Metal Stringer (Multi-Beam), Fixed
Construction Date and Builder / Engineer
1956 By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
170 Feet (51.8 Meters)
Structure Length
639.5 Feet (194.9 Meters)
Roadway Width
26 Feet (7.9 Meters)
Spans
3 Main Span(s) and 3 Approach Span(s)
NBI Number
12000500000000

Historic Significance Rating (HSR)

Bridge Documentation

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

This bridge is the largest and most noteworthy of a few bridges that serve the road that was built to traverse the backwaters of the Mississippi River leading to the magnificent Back Hawk Bridge. The reason this 1956 continous deck truss is newer than the Lansing Bridge is because flooding destroyed many of the low bridges crossing the backwaters, while leaving the high level Black Hawk Bridge unharmed.

While a late example of a riveted truss bridge, this structure is noteworthy for its continuous design that is both attractive and complex. The structure is traditionally composed for its period.

The truss appears in excellent condition, while the concrete substructure shows areas of spalling. Corrective repairs should be taken to correct this spalling. The bridge features a concrete t-beam approach span at the eastern end of the bridge, which leads to a steel stringer span over railroad, which then leads to the three continuous spans, ending with a large steel stringer span at the western end.

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Photos and Videos: Winneshiek Slough Bridge

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