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Indian Trail Bridge

Radike Mills Bridge

Indian Trail Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: July 1, 2006

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Key Facts

Facility Carried / Feature Intersected
Indian Trail Road Over Belle River
Location
Rural: St. Clair County, Michigan: United States
Construction Date and Builder / Engineer
1937 By Builder/Contractor: Couse and Saunders of Detroit, Michigan

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
88 Feet (27 Meters)
Structure Length
94 Feet (29 Meters)
Roadway Width
24 Feet (7.32 Meters)
Spans
1 Main Span(s)
NBI Number
77200066000B010

Historic Significance Rating (HSR)
View Information About HSR Ratings

Bridge Documentation

This bridge is in storage!

Bridge Status: This bridge has been replaced but the trusses were put on display at Purdue University for the training of bridge engineers.

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

View The Original Plans For This Historic Bridge

Drawing.

Researching Bridges

HistoricBridges.org has a paper that provides a look at historic bridge development, particularly metal truss bridges in Michigan, and also contains a discussion of this bridge and its history. The essay is part of the Introduction to Truss Bridges part of this website, and you can access the essay from there.

About the Bridge

Plaque.

This is St. Clair County's newest truss bridge, with a construction date of 1937. The Indian Trail Bridge crosses the Belle River. It is a pony truss in a warren configuration. Like many pony truss bridges, the bridge is a camelback. The bridge was built by Couse and Saunders of Detroit. The bridge originally had a concrete curb, which is gone now, due to salt damage. There are three parts to the guardrail, a metal pole, a large channel and a small channel. The largest channel was added during a 1985 repair. The other two parts are original. The bridge was last painted during these 1985 repairs as well. The analysis of the structure's integrity suggests that the greatest loss of integrity is in the flooring system for the bridge. The trusses are in excellent condition. The deck on this bridge is 25 feet wide. The length of the truss span is 88 feet.

Plaque.

For some reason, someone took the time to photograph the previous bridge, which was also a truss bridge, before it was demolished. This is unusual to document a truss bridge back in the thirties, when they were still common technology. Anyhow, the former bridge was a one span Pratt through truss bridge. The bridge had six panels. It had lattice guardrails. Plaques were mounted on the portal bracing. It sat on masonry abutment, the remains of which are still visible today. The bridge was 96 feet long, and 14 feet wide.

Unlike some other states which built massive-membered through truss bridges into the thirties, Michigan built very few truss bridges after the 1910s. The Indian Trail Bridge is distinguished as a good example of late truss bridge construction in Michigan. Truss bridges from the thirties have a totally different appearance and feeling to them than to turn of the century truss bridges. They have a more massive feeling to them, but still retain a great deal of aesthetics, often in the form of extensive v-lacing and latticework. It is just as important to preserve these bridges as it is older truss bridges. They both have something special to offer today's roadways.

Observations Prior To Replacement

Sign.

This bridge, compared to the other two truss bridges in St. Clair county, is in good condition. Even so, the bridge is listed as a critical bridge. Usually this translates to the bridge being torn down as soon as the money is available. Although not as old as the other St. Clair truss bridges, the bridge is definitely the most restorable. Although in need of a preventative paint job, the bridge has not yet rusted severely. The northern abutment appears to be slowly being washed away and should perhaps be patched or redone. Also, since the bridge is newer, the bridge is more massive than older truss bridges, and is capable of supporting more weight. The current 15 ton weight limit on the bridge should be more than enough for a paved country road, especially when there are other larger north-south truck routes nearby. King Road is two miles away and M-29 is four miles away. These are both truck routes, and run a more direct and faster route. It is likely many of the residents in the area also would not like the idea of having those trucks on this road if the bridge were replaced with a slab with unlimited weight limit. This is a truss bridge with two lanes, so it is unclear how width could be a problem.

 

Photo Credit: St. Clair County Road Commission

Information and Findings From Michigan Historic Bridge Inventory

Narrative Description

The Indian Trail Road Bridge is eligible for the National Register as a representative product of the PWA program. The polygonal-truss bridge is also eligible as an example of late pony-truss design. Pony-truss bridges were rarely built after the late 1930s.

At a meeting on 24 July 1935, the county road commission resolved to apply for a grant from the Federal Emergency Administration of Public Works (PWA) to build a bridge over the Belle River at this location, once known as Radike Mills. The process took more than a year, but on 19 September 1936, the board received word that the grant had been approved. The grant also included the construction of a bridge for King Road, about 2 miles east of Indian Trail Road.

Another PWA grant received at the same time was for a bridge over Mill Creek in Clyde Township. The county accepted the grants, and pledged to raise additional funding for the construction from associated assessment districts. The board anticipated that work on the bridges would begin before mid-November, and would be completed by November 1937. Bids for the Indian Trail Road Bridge were opened on 31 October 1936. Couse and Saunders of Detroit received the contract with the low bid of $33,200.78. The road commission accepted the completed structure on 22 July 1937.

Road and bridge improvements were important products of the massive federal relief programs during the 1930s. In addition to the three St. Clair County bridges funded by the PWA, the county had used another program, the Works Projects Administration (WPA), to build four other bridges, grade 148 miles of secondary roads, and construct 448 culverts by the end of 1936.


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

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Photo Galleries and Videos: Indian Trail Bridge

 
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Original / Full Size Gallery
Original / Full Size Photos
For the best visual immersion and full detail, or for use as a desktop background, this gallery presents selected overview and detail photos for this bridge in the original digital camera resolution. This gallery offers photos in the highest available resolution and file size in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer
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Structure Overview
Mobile Optimized Photos
A collection of overview photos that show the bridge as a whole and general areas of the bridge. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer
View Photo Gallery
Structure Details
Mobile Optimized Photos
A collection of detail photos that document the parts, construction, and condition of the bridge. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer

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Maps and Links: Indian Trail Bridge

Coordinates (Latitude, Longitude):

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