| 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 |
Franklin Street Bridge
LaPorte County Bridge 505 |
 | Franklin Street Over Trail Creek | Michigan City: La Porte County, Indiana | Metal Deck Girder, Movable: Bascule (Fixed Trunnion) |
Total Length: 213 ft Main Span Length: 181.8 ft Roadway Width: 35.8 ft Main Spans: 1 |
1932 By: Roberts Supply Company of Lima, Ohio and Scherzer Rolling Lift Bridge Company of Chicago, Illinois | This significant Sherzer rolling lift is the only remaining historic highway bascule bridge in the entire state of Indiana. | 
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Michigan City Railroad Bridge
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 | Railroad (Norfolk Southern, Amtrak) Over Trail Creek | Michigan City: La Porte County, Indiana | Metal Pin-Connected Pratt Through Truss, Movable: Swing (Center Pier) | Main Spans: 1 | By: Unknown | This gorgeous swing bridge still operates for boats. | 
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