| 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 |
Crisman Road Bridge
Porter County Bridge 1013 |
 | Crisman Road Over East Arm Little Calumet River | Rural: Porter County, Indiana | Metal 8 Panel Rivet-Connected Parker Through Truss, Fixed |
Total Length: 154 ft Main Span Length: 145 ft Roadway Width: 19.7 ft Main Spans: 1 |
By: Unknown and Indiana State Highway Commission | A good example of a state standard plan truss bridge, this bridge is closed to traffic, with a modern bridge and larger highway nearby. | 
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Dunns Bridge
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 | CR-500 East Over Kankakee River | Rural: Porter County, Indiana and Jasper County, Indiana | Metal Braced Ribbed Through Arch, Fixed | Main Spans: 1 | 1895 By: Unknown | This extremely rare and bizarre bridge undoubtedly has one of the most unusual bridge histories ever! | 
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