| 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 |
Cementon Bridge
|
 | Main Street / 21st Street (PA-329) Over Lehigh River and Railroad | Cementon: Lehigh County, Pennsylvania and Northampton County, Pennsylvania | Metal 7 Panel Rivet-Connected Pratt Through Truss, Fixed and Approach Spans: Metal Through Girder, Fixed |
Total Length: 575.2 ft Main Span Length: 159 ft Roadway Width: 22 ft Main Spans: 3 |
1933 By: Unknown and Pennsylvania State Highway Department | This impressive example of a state standard truss bridge is at risk for demolition and replacement despite its good condition. | 
| ! |
Coplay-Northampton Bridge
Chestnut Street Bridge |
 | Chestnut Street (PA-7404, 9th Street) Over Lehigh River and Railroad | Coplay and Northampton: Lehigh County, Pennsylvania and Northampton County, Pennsylvania | Concrete Open Spandrel Deck Arch, Fixed and Approach Spans: Metal Continuous Rivet-Connected Parker Through Truss, Fixed |
Total Length: 1124 ft Main Span Length: 214 ft Roadway Width: 23.3 ft Main Spans: 3 |
1930 By: Whitaker and Diehl of Harrisburg, Pennsylvania | This enormous historic concrete arch bridge, which features a variety of approach spans, is slated for demolition and replacement! | 
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Easton-Phillipsburg Toll Bridge
Bushkill Street Bridge |
 | US-22 (Bushkill Street) Over Delaware River | Easton and Phillipsburg: Northampton County, Pennsylvania and Warren County, New Jersey | Metal 18 Panel Multiple-Type-Connected Pennsylvania Through Truss, Fixed |
Total Length: 550 ft Main Span Length: 550 ft Roadway Width: 40 ft Main Spans: 1 |
1938 By: Bethlehem Steel Company of Bethlehem, Pennsylvania and J. E. Greiner Company of Chicago, Illinois | This bridge was when built the longest simple truss span in the world, and is today the ninth longest! | 
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High Street Bridge
Seidersville Road Bridge |
 | High Street (Seidersville Road) Over Saucon Creek | Near Hellertown: Northampton County, Pennsylvania | Metal 9 Panel Welded Pratt Through Truss, Fixed |
Total Length: 134.8 ft Main Span Length: 131 ft Roadway Width: 18 ft Main Spans: 1 |
1936 By: | This bridge is one of the oldest examples of a welded truss bridge in Pennsylvania and one of the few examples of a welded through truss. | 
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Hill To Hill Bridge
|
 | PA-378 Over Lehigh River, Railroads, Local Streets | Bethlehem: Lehigh County, Pennsylvania and Northampton County, Pennsylvania | Metal 8 Panel Rivet-Connected Hudson Through Truss, Fixed and Approach Spans: Concrete Closed Spandrel Deck Arch, Fixed |
Total Length: 1607 ft Main Span Length: 171 ft Roadway Width: 40 ft Main Spans: 2 |
1924 By: Rodgers and Hagerty of New York, New York and Clarence W. Hudson | This concrete arch bridge also contains the only known example of a Hudson truss, and also is an amazingly complex bridge with several ramps. | 
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Lehigh and Hudson Railroad Delaware River Bridge
|
 | Railroad (Lehigh and Hudson Railroad) Over Delaware River | Easton and Phillipsburg: Northampton County, Pennsylvania and Warren County, New Jersey | Metal 7 Panel Pin-Connected Parker Through Truss, Fixed | Main Spans: 3 | By: Unknown | An attractive and noteworthy multi-span railroad structure adds much to its surrounding historic community. | 
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