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28 Mile Road Bridge

28 Mile Road Bridge

Primary Photographer(s): Nathan Holth and Rick McOmber

Bridge Documented: July 22, 2004 - February 26, 2012

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Key Facts

Facility Carried / Feature Intersected
28 Mile Road Over North Branch Clinton River
Location
Rural: Macomb County, Michigan: United States
Construction Date and Builder / Engineer
1928 By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
63 Feet (19.2 Meters)
Structure Length
65 Feet (19.81 Meters)
Roadway Width
16.4 Feet (5 Meters)
Spans
1 Main Span(s)
NBI Number
50310H00003B050

Historic Significance Rating (HSR)

Bridge Documentation

This bridge no longer exists!

Bridge Status: This bridge's trusses were cut off, and only the deck remains, supported by post-tension rods!

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

When first visited in 2004, Macomb County has three highway truss bridges in this area: Card Road Bridge, 27 Mile Bridge, and 28 Mile Bridge. All three were pony trusses, and were closed to traffic. All three are in very poor condition and are in danger of collapsing. This is the 28 Mile Bridge. The Michigan Historic Bridge Inventory gives a date of 1928 for the construction of this bridge. By 2012, someone had cut the trusses off of this bridge. It is not known if this was done by scrap thieves or purposely by the county. The only reason this bridge's deck still crosses the water is because a long time ago someone added post tensioning rods under the deck, and these are sufficient to keep the deck from collapsing in the absence of load-bearing trusses.

The 28 Mile Bridge was a very simply designed truss bridge, but was nevertheless very interesting. No v-lacing was present on the bridge. The only built up beams on the bridge were diagonal and vertical members composed of paired angles with battens. The connections were riveted. The top chord was very unusual, since it was made of plain rolled i-beams, not built-up beams.

The condition of this bridge was very similar to the nearby 27 Mile Bridge. The 28 Mile Bridge had decayed severely, so bad that some members were missing, fallen off, or had so much complete section loss they looked like swiss cheese. If the bridge had not had the post-tensioning rods added, the bridge likely would have collapsed long ago. The trusses also moved independent of the deck if you pushed or leaned on them even slightly.


This bridge is tagged with the following special condition(s): Available

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Photo Galleries and Videos: 28 Mile Road Bridge

 
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