| 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 |
6 Mile Creek Road Bridge
West Haven Bridge |
 | 6 Mile Creek Road Over Shiawassee River | Rural: Shiawassee County, Michigan | Metal 8 Panel Pin-Connected Pratt Through Truss, Fixed |
Total Length: 132 ft Main Span Length: 128 ft Roadway Width: 16 ft Main Spans: 1 |
By: Morse Bridge Company of Youngstown, Ohio | With its beautiful and unusual portal bracing design, this bridge is among Michigan's finest bridges. | 
|
Byron Railroad Bridge
|
 | Railroad (MDOT Owned) Over Shiawassee River | Byron: Shiawassee County, Michigan | Metal 8 Panel Rivet-Connected Warren Deck Truss, Fixed |
Total Length: 104 ft Main Span Length: 104 ft Roadway Width: 11 ft Main Spans: 1 |
By: Toledo-Massillon Bridge Company of Toledo, Ohio | An excellent and locally uncommon example of a railroad deck truss. | 
|
Chesaning Bridge
Broad Street Bridge |
 | Broad Street Over Shiawassee River | Chesaning: Saginaw County, Michigan | Metal Stringer (Multi-Beam), Fixed |
Total Length: 140.8 ft Main Span Length: 70.2 ft Roadway Width: 40 ft Main Spans: 2 |
1930 By: Unknown and Michigan State Highway Department | The only vehicular crossing in Chesaning is a beautiful example of 1930s steel stringer construction. | 
| X |
Duffield Road Bridge
|
 | Duffield Road Over Shiawassee River | Rural: Genesee County, Michigan | Concrete Through Girder, Fixed |
Total Length: 45 ft Main Span Length: 41 ft Roadway Width: 23 ft Main Spans: 1 |
1924 By: Paul Weinlander of Saline, Michigan and Michigan State Highway Department | A traditional example of a concrete girder bridge in Michigan. | 
| ! |
Fergus Road Shiawassee River Bridge
|
| Fergus Road Over Shiawassee River | Rural: Saginaw County, Michigan | Metal Stringer (Multi-Beam), Fixed |
Total Length: 219.8 ft Main Span Length: 54.8 ft Roadway Width: 24 ft Main Spans: 4 |
1956 By: Jarvick Construction Company and Michigan State Highway Department | This 1958 bridge is noted for its length and skew. | 
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