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Key Facts |
| Bridge Name | Facility Carried / Feature Intersected | Location | Structure Type | Construction Date / Builder or Contractor |
| Caseville Bridge | M-25 (Main Street) Over Pigeon River | Caseville: Huron County, Michigan | Metal Stringer, Stationary | 1929 By: Unknown |
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Technical Facts |
| Structure Length | Roadway Width | Main Spans | Approach Spans |
| 79.7 Feet (24.3 Meters) | 40 Feet (12.2 Meters) | 2 | None |
A number of bridges in Michigan similar to this one were built in the late 1920s and early 1930s. In general, those built in the late 1920s included abutment railings that were different from the railings on the bridge, while those built in the early 1930s featured the same railing design along the length. The Caseville Bridge was built in 1929 and does have the different abutment railings. This change in railing design has a positive influence of the bridge, producing an attractive compliment of design.
This bridge is a significant example of this ca. 1930 bridge design, as it retains good historic integrity, with the exception of stolen plaques. It is a medium-sized structure, composed of two spans. It is fairly wide, with three lanes and a sidewalk on both sides. The southeast end of the bridge has unusual design, where the abutment is extended, and railing system extends with it, apparently to create a safety barrier for the sidewalk between the end of the bridge to the nearby building.
Finally, this bridge is historically significant in regards to its corridor of travel, as it is the oldest remaining bridge on M-25, which is a long trunk line that runs from Port Huron to Bay City along the lakeshore, which for much of its length serves primarily residential and tourism purposes rather than being an efficient truck route.
