Historic Bridges in Pennsylvania
6,062 bridges built before 1951 in Pennsylvania still in service today.
Bridges Built Before 1951
The United States has 6,062 bridges in Pennsylvania built before 1951 that remain in active service. These structures are 75+ years old — many predate modern engineering codes and were not designed for today's traffic volumes and vehicle weights. The average design life of a bridge is 50 years, making these aging structures a significant infrastructure concern.
| Bridge | State | Condition | Year Built | Age (Years) | ADT |
|---|---|---|---|---|---|
| CODER RUN | Pennsylvania | Poor | 1914 | 112 | 50 |
| BIG RUN | Pennsylvania | Poor | 1914 | 112 | 500 |
| TRIB.TO LITTLE TROUT CK. | Pennsylvania | Good | 1914 | 112 | 2,200 |
| SUSQUEHANNA RIVER | Pennsylvania | Poor | 1914 | 112 | 9,300 |
| SUSQ RIV / LUZ & SUSQ RR | Pennsylvania | Poor | 1914 | 112 | 8,665 |
| OVER SHENANGO RIVER | Pennsylvania | Fair | 1914 | 112 | 304 |
| OVER BIG RUN TRIB | Pennsylvania | Fair | 1914 | 112 | 483 |
| WISSAHICKON CR / 3369-D4 | Pennsylvania | Fair | 1914 | 112 | 7,909 |
| SANATOGA CREEK | Pennsylvania | Good | 1914 | 112 | 16,064 |
| MINGO CREEK | Pennsylvania | Poor | 1914 | 112 | 1,778 |
| Tacony Creek | Pennsylvania | Poor | 1914 | 112 | 6,455 |
| SHAMOKIN CREEK | Pennsylvania | Poor | 1914 | 112 | 8,400 |
| LITTLE CATAWISSA CREEK | Pennsylvania | Poor | 1914 | 112 | 2,016 |
| FLAUGHERTY CREEK | Pennsylvania | Fair | 1914 | 112 | 4,706 |
| OVEN RUN | Pennsylvania | Fair | 1914 | 112 | 111 |
| QUEMAHONING CREEK | Pennsylvania | Poor | 1914 | 112 | 34 |
| BARRS RUN | Pennsylvania | Poor | 1914 | 112 | 132 |
| PORTERS RUN | Pennsylvania | Poor | 1914 | 112 | 50 |
| NFSRR | Pennsylvania | Good | 1914 | 112 | 474 |
| LITTLE MUDDY CREEK | Pennsylvania | Poor | 1914 | 112 | 107 |
| CSX (LOW FREIGHT LINE) | Pennsylvania | Fair | 1914 | 112 | 8,992 |
| CSX (LOW FREIGHT LINE) | Pennsylvania | Fair | 1914 | 112 | 12,759 |
| AMTRAK (NE Corridor) | Pennsylvania | Poor | 1914 | 112 | 6,000 |
| TRIB TO LONG RUN | Pennsylvania | Poor | 1914 | 112 | 20 |
| TRIB TO MOUNTAIN CREEK | Pennsylvania | Fair | 1914 | 112 | 500 |
| NORFOLK SOUTHERN RR | Pennsylvania | Poor | 1914 | 112 | 400 |
| Perkins Run | Pennsylvania | Fair | 1914 | 112 | 300 |
| BECKETS RUN | Pennsylvania | Poor | 1915 | 111 | 4,603 |
| PINE CREEK | Pennsylvania | Fair | 1915 | 111 | 2,927 |
| HOWES RUN | Pennsylvania | Fair | 1915 | 111 | 629 |
| PINE CREEK | Pennsylvania | Fair | 1915 | 111 | 4,660 |
| PINE CREEK | Pennsylvania | Fair | 1915 | 111 | 4,130 |
| CSX/AV RR SALINE ST | Pennsylvania | Poor | 1915 | 111 | 6,000 |
| GIRTYS RUN | Pennsylvania | Poor | 1915 | 111 | 1,000 |
| GIRTYS RUN | Pennsylvania | Poor | 1915 | 111 | 4,000 |
| N-S RR/R-R ST/CREEK | Pennsylvania | Poor | 1915 | 111 | 2,002 |
| BEAVER CREEK | Pennsylvania | Poor | 1915 | 111 | 112 |
| BEAVERDAM CREEK | Pennsylvania | Fair | 1915 | 111 | 21 |
| WILLOW CREEK | Pennsylvania | Poor | 1915 | 111 | 11,268 |
| PLUM CREEK | Pennsylvania | Fair | 1915 | 111 | 376 |
| VANSCOYOC RUN | Pennsylvania | Poor | 1915 | 111 | 141 |
| CLOVER CREEK | Pennsylvania | Poor | 1915 | 111 | 67 |
| BULLARD CREEK | Pennsylvania | Poor | 1915 | 111 | 50 |
| WEST BR. SUGAR CREEK | Pennsylvania | Poor | 1915 | 111 | 500 |
| READING CREEK | Pennsylvania | Fair | 1915 | 111 | 3,903 |
| TRIB.DELAWARE RIVER | Pennsylvania | Poor | 1915 | 111 | 1,951 |
| SOUTH BRANCH GLADE RUN | Pennsylvania | Fair | 1915 | 111 | 100 |
| LITTLE BUFFALO RUN | Pennsylvania | Poor | 1915 | 111 | 100 |
| TRIB. LITTLE BUFFALO RUN | Pennsylvania | Poor | 1915 | 111 | 100 |
| BONNIE BROOK | Pennsylvania | Poor | 1915 | 111 | 100 |
About Historic Bridge Data
Bridges built before 1951 are classified as historic in this database. Many were designed to 1940s standards with lower load limits and narrower lanes. While FHWA requires regular inspections of all bridges regardless of age, older structures often require more frequent monitoring and rehabilitation investment.