| 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 |
Adams Road Bridge
| Adams Road Over Bush Creek | Rural: Gratiot County, Michigan | Concrete Through Girder, Stationary | 1930 By: Unknown | The smaller of two nearby bridges that have an unusual, primitive design to them unlike other Michigan girders. | 
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Grant Road Bridge
| Grant Road Over Pine Creek | Rural: Gratiot County, Michigan | Concrete 60 Foot Plan Curved Chord Through Girder, Stationary | 1927 By: Unknown | This bridge an excellent example of a 60 foot camelback bridge. | 
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Jefferson Road Bridge
| Jefferson Road Over Bush Creek | Rural: Gratiot County, Michigan | Concrete Through Girder, Stationary | 1930 By: Unknown | The larger of two nearby bridges that have an unusual, primitive design to them unlike other Michigan girders. | 
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Lincoln Road Bridge
Riverdale Bridge | Lincoln Road Over Pine River | Rural: Gratiot County, Michigan | Concrete 60 Foot Plan Curved Chord Through Girder, Stationary | 1922 By: Unknown | This bridge is one of the worst spalling concrete bridges ever seen, yet still has no posted weight limit. | 
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St. Charles Road Bridge
| St. Charles Road Over Pine River | Rural: Gratiot County, Michigan | Concrete 60 Foot Plan Curved Chord Through Girder, Stationary | 1925 By: Unknown | A well-preserved example of a concrete camelback bridge, this is an attractive structure. | 
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