| Special Bridge Conditions Legend |
| ! | Confirmed demolition date within one year or an especially historic bridge that is threatened with demolition at any level. |
| X | The bridge has been confirmed demolished or collapsed. |
| S | The bridge has been dismantled or moved to an offsite location and is not currently available for public viewing. |
| L | Most or all of the original bridge material has been demolished and replaced, including historically significant elements, but some original parts of the bridge remain. |
| Note: This website cannot guarantee the current condition of any bridge on this website. Bridges lacking these icons should not necessarily be considered condition-free. |
| Bridge Name | HSR Rating | Facility Carried / Feature Intersected | Location | Structure Type | Structure Dimensions | Construction Date / Builder or Contractor | Description | Thumbnail |
Cheboygan Bridge
|
 | US-23 Over Cheboygan River | Cheboygan: Cheboygan County, Michigan | Metal Deck Girder, Movable: Bascule |
Total Length: 155 ft Main Span Length: 70 ft Roadway Width: 40 ft Main Spans: 1 |
1940 By: W. J. Storen Company | This is a tiny double-leaf bascule bridge that was built in 1940. | 
|
Cheboygan River Railroad Bridge
|
 | Railroad (Rail-Trail) Over Cheboygan River | Rural: Cheboygan County, Michigan | Metal 6 Panel Rivet-Connected Warren Through Truss, Fixed | Main Spans: 1 | 1904 By: American Bridge Company of New York, New York | This is a good, early example of a railroad through truss built by the American Bridge Company of New York, New York. | 
|
Hebron Town Hall Road Bridge
|
 | Hebron Town Hall Road Over I-75 | Rural: Cheboygan County, Michigan | Concrete Continuous Curved T-Beam, Fixed |
Total Length: 294 ft Main Span Length: 92 ft Roadway Width: 24 ft Main Spans: 4 |
1960 By: Johnson-Greene Company and Michigan State Highway Department | One of a couple curved t-beams that survive with original railings in northern Michigan, this bridge has a 39 degree skew. | 
| X |
Indian River Bridge
|
 | M-27 (Straits Highway, Old US-27) Over Indian River | Indian River: Cheboygan County, Michigan | Concrete 90 Foot Plan Curved Chord Through Girder, Fixed |
Total Length: 90 ft Main Span Length: 85 ft Roadway Width: 22 ft Main Spans: 1 |
1924 By: J. B. Whitcomb Construction Company of Detroit, Michigan and Michigan State Highway Department | Both beautiful and rare, this easily visited bridge sits next to a railroad plate girder. | 
|
Indian River Railroad Bridge
|
 | Railroad (Gaylord to Mackinaw City Rail-Trail) Over Indian River | Indian River: Cheboygan County, Michigan | Metal Through Girder, Fixed | Main Spans: 1 | By: Unknown | This simple plate girder is a remnant of a railroad line which once ran through the area. | 
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