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McGilvray Road Bridge Number 5

   


McGilvray Road Bridge Number 5

Primary Photographer(s): Nathan Holth

Bridge Documented: August 9, 2013
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Key Facts

Facility Carried / Feature Intersected
McGilvray Road Over Black River Bottoms
Location
Rural: La Crosse County, Wisconsin
Construction Date and Builder / Engineer
1921 By Builder/Contractor: Worden-Allen Company of Milwaukee, Wisconsin

Technical Facts

Rehabilitation Date
1997
Main Span Length
60 Feet (18.3 Meters)
Structure Length
60 Feet (18.3 Meters)
Roadway Width
17 Feet (5.2 Meters)
Spans
1 Main Span(s)
NBI Number
Not Applicable

Historic Significance Rating (HSR)

Bridge Documentation

This webpage and narrative you are currently viewing is for Bridge #5 on McGilvray Road. This page provides a discussion of McGilvray Road Bridge #5 specifically. Please also view the McGilvray Road Bridge #1 which includes a general overview discussions of McGilvray Road and the six bridges. It is on that page that you will find a detailed discussion of the details that make the bowstring bridges on this road so unique and significant. The below map shows McGilvray Road as it exists today. You can click on the name of a bridge to switch to a particular bridge's page.

This is the only one of the six bridges on McGilvray Road that is not a bowstring truss bridge. The bridge was previously a wooden kingpost bridge that was demolished in 1986. The bridge present today is also a historic bridge and it was saved from demolition by being relocated here and preserved from Pierce County, Wisconsin. The bridge is a representative example of a bridge type that was once common in Wisconsin but is today rare, the rivet-connected Warren pony truss bridge. The bridge is an outstanding bridge to place on the McGilvray Road because it offers an important comparison to the bowstring truss bridges. The bowstring truss bridges on McGilvray Road have been noted as highly unusual both because of their bowstring design and their non-standard details. This ca. 1920 pony truss, in contrast, represents the general truss form that most bridge builders were starting to adopt around the time the bowstring truss bridges were built. The pony truss features typical standard details for an early 20th Century Warren pony truss bridge. When first built, each of the two trusses on this bridge were riveted together in three pieces in the bridge company shop and shipped to the site, where they were put together using bolts. Looking at the bridge, you can see where the bolts are present on the bridge, indicating where the three sections were attached in the field. Because these bolts and nuts are squared-headed, it does not appear they were removed when the bridge was relocated here. Modern bridge bolts generally don't have square heads.

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Photos and Videos: McGilvray Road Bridge Number 5

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