| 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 |
Cumberland Valley Railroad Bridge
|
 | Railroad (Abandoned) Over Susquehanna River | Harrisburg: Cumberland County, Pennsylvania and Dauphin County, Pennsylvania | Concrete Segmental Deck Arch, Fixed |
Main Span Length: 77 ft Main Spans: 43 |
1916 By: Unknown | An extremely long concrete arch bridge that may be reused for a light rail system. | 
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Market Street Bridge
|
 | Market Street (PA-3012) Over Susquehanna River | Harrisburg: Dauphin County, Pennsylvania | Concrete Closed Spandrel Deck Arch, Fixed |
Total Length: 1415 ft Main Span Length: 89 ft Roadway Width: 40 ft Main Spans: 16 |
1928 By: James McGraw Company of Philadelphia, Pennsylvania and Modjeski and Masters | Designed by Modjeski and Masters, this concrete arch bridge features a stone facade. | 
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Philadelphia and Reading Railroad Bridge
|
| Railroad (Norfolk Southern) Over Susquehanna River | Harrisburg: Cumberland County, Pennsylvania and Dauphin County, Pennsylvania | Concrete Closed Spandrel Deck Arch, Fixed |
Total Length: 3507.7 ft Main Span Length: 66 ft Main Spans: 51 |
1924 By: James McGraw Company of Philadelphia, Pennsylvania | An amazing bridge, this extremely long bridge has attractive and fairly tall arch spans. | 
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Rockville Bridge
|
 | Norfolk Southern Over Susquehanna River | Marysville and Rockville: Perry County, Pennsylvania and Dauphin County, Pennsylvania | Stone Segmental Deck Arch, Fixed |
Total Length: 3791 ft Main Span Length: 70 ft Roadway Width: 52 ft Main Spans: 48 |
1902 By: Drake and Stratton of Philadelphia, Pennsylvania and H. S. Kerbaugh of Philadelphia, Pennsylvania and William H. Brown | This bridge was when built and remains today the longest stone arch bridge in the entire world! | 
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Walnut Street Bridge
|
 | Walnut Street Over Susquehanna River | Harrisburg: Cumberland County, Pennsylvania and Dauphin County, Pennsylvania | Metal 10 Panel Pin-Connected Baltimore Through Truss, Fixed |
Total Length: 2820 ft Main Span Length: 240 ft Roadway Width: 18 ft Main Spans: 15 |
1890 By: Dean and Westbrook of New York, New York and Phoenix Bridge Company of Phoenixville, Pennsylvania | The longest known Phoenix column bridge remaining today! | 
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