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 |
|---|---|---|---|---|---|
| JOPLING RUN | Pennsylvania | Fair | 1948 | 78 | 2,814 |
| LAUREL RUN | Pennsylvania | Fair | 1948 | 78 | 10,877 |
| LAUREL RUN | Pennsylvania | Fair | 1948 | 78 | 10,877 |
| COMFORT RUN | Pennsylvania | Fair | 1948 | 78 | 953 |
| TRIB. TO SUSQ. RIVER | Pennsylvania | Fair | 1948 | 78 | 7,388 |
| TRIB. TO ROARING CREEK | Pennsylvania | Good | 1948 | 78 | 317 |
| TRIB SUSQUEHANNA RIVER | Pennsylvania | Good | 1948 | 78 | 124 |
| OVER THOMPSON CREEK | Pennsylvania | Fair | 1948 | 78 | 3,212 |
| OVER B&LE RAILROAD | Pennsylvania | Fair | 1948 | 78 | 2,131 |
| PEEBLES RUN | Pennsylvania | Fair | 1948 | 78 | 2,212 |
| RIDLEY CREEK | Pennsylvania | Fair | 1948 | 78 | 14,523 |
| EDDYSTONE AVENUE | Pennsylvania | Fair | 1948 | 78 | 14,523 |
| CONRAIL;LITTLE CRUM CRK. | Pennsylvania | Poor | 1948 | 78 | 18,945 |
| ELK CREEK | Pennsylvania | Fair | 1948 | 78 | 3,617 |
| ROCKY RUN | Pennsylvania | Fair | 1948 | 78 | 2,867 |
| OVER CONNEAUT CREEK | Pennsylvania | Fair | 1948 | 78 | 522 |
| POPLAR RUN | Pennsylvania | Fair | 1948 | 78 | 842 |
| JACOBS CREEK | Pennsylvania | Fair | 1948 | 78 | 1,515 |
| CHAMPION CREEK | Pennsylvania | Fair | 1948 | 78 | 1,515 |
| BIG SANDY CREEK | Pennsylvania | Fair | 1948 | 78 | 86 |
| ROCKY MT CREEK | Pennsylvania | Poor | 1948 | 78 | 15,365 |
| ROCKY MT CR | Pennsylvania | Fair | 1948 | 78 | 1,272 |
| TR.PATTERSON RUN | Pennsylvania | Fair | 1948 | 78 | 833 |
| PATTERSON RUN | Pennsylvania | Fair | 1948 | 78 | 291 |
| PALMER RUN | Pennsylvania | Fair | 1948 | 78 | 410 |
| OWL CREEK | Pennsylvania | Fair | 1948 | 78 | 356 |
| BATES FORK | Pennsylvania | Good | 1948 | 78 | 64 |
| TRIB.JUNIATA RIVER | Pennsylvania | Fair | 1948 | 78 | 10,982 |
| SR 3035 NORFOLK RR T565 | Pennsylvania | Fair | 1948 | 78 | 10,982 |
| CROOKED CREEK | Pennsylvania | Fair | 1948 | 78 | 9,540 |
| PRIVATE ROAD | Pennsylvania | Fair | 1948 | 78 | 12,868 |
| THREE LICK CREEK | Pennsylvania | Fair | 1948 | 78 | 25 |
| FRONT RUN | Pennsylvania | Fair | 1948 | 78 | 200 |
| TUSCARORA CREEK | Pennsylvania | Fair | 1948 | 78 | 203 |
| WILLOW RUN | Pennsylvania | Fair | 1948 | 78 | 100 |
| LACKA CO RR AUTHORITY | Pennsylvania | Poor | 1948 | 78 | 5,627 |
| ROARING BROOK | Pennsylvania | Fair | 1948 | 78 | 5,627 |
| Landis Run | Pennsylvania | Fair | 1948 | 78 | 15,810 |
| Pequea Creek | Pennsylvania | Fair | 1948 | 78 | 26,775 |
| Conestoga River | Pennsylvania | Fair | 1948 | 78 | 5,921 |
| HAMMER CK. | Pennsylvania | Fair | 1948 | 78 | 24,971 |
| MIDDLE CREEK | Pennsylvania | Fair | 1948 | 78 | 24,971 |
| MEETINGHOUSE CREEK | Pennsylvania | Poor | 1948 | 78 | 245 |
| PEDESTRIAN TRAIL | Pennsylvania | Good | 1948 | 78 | 515 |
| SLIPPERY ROCK CREEK | Pennsylvania | Good | 1948 | 78 | 139 |
| EARLAKILL RUN | Pennsylvania | Fair | 1948 | 78 | 8,259 |
| NORFOLK SOUTHERN RR | Pennsylvania | Fair | 1948 | 78 | 5,026 |
| OVER BONNELL RUN. | Pennsylvania | Fair | 1948 | 78 | 119 |
| OVER SPRING RUN | Pennsylvania | Fair | 1948 | 78 | 195 |
| OPEN BROOK | Pennsylvania | Fair | 1948 | 78 | 452 |
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.