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Ulshaffer Road Bridge

Ulshaffer Road Bridge

Primary Photographer(s): Luke Gordon

Bridge Documented: July 10, 2005

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Key Facts

Facility Carried / Feature Intersected
Ulshaffer Road Over Thunder Bay River
Location
Rural: Montmorency County, Michigan: United States
Structure Type
Metal 4 Panel Pin-Connected Pratt Half-Hip Pony 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
40 Feet (12.2 Meters)
Structure Length
70 Feet (21.3 Meters)
Roadway Width
15.7 Feet (4.79 Meters)
Spans
1 Main Span(s) and 2 Approach Span(s)
NBI Number
60307A00017B010

Historic Significance Rating (HSR)
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Bridge Documentation

This is a nice classic pin connected half-hip Pratt pony truss. It retains a wooden deck, as well as most of its simple metal railings. V-lacing is present on the vertical members which have back-to-back channels. The top chord and end post has back-to-back channels with battens and cover plate.  The bridge is located at the end of Ulshaffer Road, and now has a fence across it, suggesting that the last part of the road is now private. Strangely enough, the 3 ton weight limit sign posted at the bridge looks new. Perhaps ownership of this bridge was transferred recently. Getting photos is still possible, however. The floor beams under this bridge are unusual, because they have a built-up fishbelly shape which suggests this may be a rather old bridge perhaps as old as from the 1880s. The Michigan Historic Bridge Inventory gives a date of 1930 for the construction of this bridge... this is certainly incorrect, based on the features of the bridge. The date is either an error or it might indicate that this bridge was relocated here from elsewhere at that date.

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Photo Galleries and Videos: Ulshaffer Road Bridge

 
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Maps and Links: Ulshaffer Road Bridge

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