| 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 | ! |
Port Huron Railroad Bridge
Pere Marquette Railroad Bridge |
 | Railroad (Abandoned CSX) Over Black River | Port Huron: St. Clair County, Michigan | Metal 8 Panel Rivet-Connected Warren Through Truss, Movable: Bascule (Abt) and Approach Spans: Metal Through Girder, Fixed |
Total Length: 234 ft Main Span Length: 173 ft Roadway Width: 18 ft Main Spans: 1 |
1931 By: American Bridge Company of New York, New York | Unused for many years, this extremely rare example of an Abt bascule bridge is a significant Port Huron landmark. | 
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River Rouge Norfolk Southern Railroad Bridge
River Rouge Wabash Railroad Bridge |
| Railroad (Norfolk Southern) Over River Rouge | Detroit: Wayne County, Michigan | Metal 6 Panel Rivet-Connected Warren Through Truss, Movable: Bascule (Abt) |
Total Length: 291 ft Main Span Length: 162 ft Roadway Width: 30 ft Main Spans: 1 |
1921 By: American Bridge Company of New York, New York | The first Abt bascule bridge ever built, this bridge is also one of the few surviving examples of this unusual bascule type. | 
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Saginaw Bascule Railroad Bridge
CSX Saginaw River Bridge |
 | Railroad (CSX) Over Saginaw River | Saginaw: Saginaw County, Michigan | Metal 8 Panel Rivet-Connected Warren Through Truss, Movable: Bascule (Abt) and Approach Spans: Metal 5 Panel Rivet-Connected Pratt Through Truss, Fixed |
Total Length: 700 ft Main Span Length: 160 ft Roadway Width: 15 ft Main Spans: 1 |
1944 By: American Bridge Company of New York, New York | An exceedingly rare example of the unusual patented Abt type bascule bridge. this bridge has several truss approach spans also. | 
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