| 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. |
| 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 | Facility Carried / Feature Intersected | Location | Structure Type | Construction Date / Builder or Contractor | Description | Thumbnail |
Isabella Road Bridge
| Isabella Road Over Little Salt Creek | Rural: Isabella County, Michigan | Metal Stringer, Stationary | 1938 By: Unknown | This tiny bridge is noteworthy as a product of the Works Progress Administration. | 
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Oak Street Bridge
| Oak Street Over Chippewa River | Mt. Pleasant: Isabella County, Michigan | Metal Pinned Pratt Full-Slope Pony Truss, Stationary | 1890 By: Wrought Iron Bridge Company of Canton, Ohio | This bridge has excellent historic integrity and displays the innovative, distinctive connection details of its builder. | 
| ! |
Woodruff Road Bridge North
| Woodruff Road Over Coldwater River | Rural: Isabella County, Michigan | Concrete Through Girder, Stationary | 1926 By: W. J. Anschutz of Saginaw, Michigan | A rare multi-span example of this particular style of concrete girder. | 
| ! |
Woodruff Road Bridge South
| Woodruff Road Over Coldwater River | Rural: Isabella County, Michigan | Concrete Through Girder, Stationary | 1926 By: Price Brothers of Lansing | Located near another girder, this bridge is also a good example of its type with good integrity. | 
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