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 |
|---|---|---|---|---|---|
| OVER SCHWABEN CREEK | Pennsylvania | Fair | 1940 | 86 | 679 |
| HOUSTON RUN | Pennsylvania | Fair | 1940 | 86 | 398 |
| BUCKWHEAT RUN | Pennsylvania | Good | 1940 | 86 | 546 |
| LITTLE BUFFALO CREEK | Pennsylvania | Fair | 1940 | 86 | 804 |
| WILDCAT CREEK | Pennsylvania | Fair | 1940 | 86 | 75 |
| MONTOUR CREEK | Pennsylvania | Poor | 1940 | 86 | 100 |
| TRIB TO BILLINGS CREEK | Pennsylvania | Fair | 1940 | 86 | 1,278 |
| OUTLET MARCEL LAKE | Pennsylvania | Fair | 1940 | 86 | 2,351 |
| BLOOMING GROVE CREEK | Pennsylvania | Poor | 1940 | 86 | 553 |
| SPRUCE RUN | Pennsylvania | Fair | 1940 | 86 | 50 |
| WHITE BR NORTH FORK CRK | Pennsylvania | Poor | 1940 | 86 | 50 |
| GENESEE FORK PINE CREEK | Pennsylvania | Fair | 1940 | 86 | 30 |
| ELEVEN MILE CREEK | Pennsylvania | Fair | 1940 | 86 | 70 |
| MAHANOY CREEK | Pennsylvania | Fair | 1940 | 86 | 5,676 |
| LITTLE SCHUYLKILL RIVER | Pennsylvania | Fair | 1940 | 86 | 20,316 |
| LOCUST CREEK | Pennsylvania | Fair | 1940 | 86 | 398 |
| MAHANNON CREEK | Pennsylvania | Poor | 1940 | 86 | 893 |
| PLUM CREEK | Pennsylvania | Fair | 1940 | 86 | 571 |
| MAHONNEY CREEK | Pennsylvania | Fair | 1940 | 86 | 969 |
| MAHONNEY CREEK | Pennsylvania | Fair | 1940 | 86 | 974 |
| UPPER LITTLE SWATARA CR | Pennsylvania | Poor | 1940 | 86 | 1,223 |
| LITTLE MAHANOY CREEK | Pennsylvania | Poor | 1940 | 86 | 1,996 |
| CRAB RUN | Pennsylvania | Fair | 1940 | 86 | 380 |
| MAHANTANGO CREEK | Pennsylvania | Fair | 1940 | 86 | 200 |
| DEEP CREEK | Pennsylvania | Poor | 1940 | 86 | 150 |
| SCHUYLKILL RIVER | Pennsylvania | Poor | 1940 | 86 | 250 |
| TRIB NO BR MAHANTANGO CR | Pennsylvania | Good | 1940 | 86 | 376 |
| NORTH BRANCH MIDDLE CRK | Pennsylvania | Fair | 1940 | 86 | 388 |
| OVER TUSCARORA CR. | Pennsylvania | Poor | 1940 | 86 | 100 |
| TRIB YOUGHIOGHENY RIVER | Pennsylvania | Fair | 1940 | 86 | 256 |
| S.GLADE CREEK | Pennsylvania | Poor | 1940 | 86 | 636 |
| N.BR.QUEMAHONING CREEK | Pennsylvania | Fair | 1940 | 86 | 20 |
| ROARING FORK | Pennsylvania | Good | 1940 | 86 | 50 |
| CASCADA CREEK | Pennsylvania | Good | 1940 | 86 | 587 |
| SNAKE CREEK | Pennsylvania | Poor | 1940 | 86 | 129 |
| HORTON CREEK | Pennsylvania | Fair | 1940 | 86 | 134 |
| DEWING CREEK | Pennsylvania | Poor | 1940 | 86 | 765 |
| OVER CROOKED CR. | Pennsylvania | Fair | 1940 | 86 | 4,777 |
| CHARLESTON CREEK | Pennsylvania | Fair | 1940 | 86 | 150 |
| BEAVER RUN | Pennsylvania | Fair | 1940 | 86 | 9,622 |
| BUFFALO CREEK | Pennsylvania | Fair | 1940 | 86 | 1,484 |
| OVER PORTER RUN | Pennsylvania | Poor | 1940 | 86 | 200 |
| OVER PINE CREEK | Pennsylvania | Poor | 1940 | 86 | 1,464 |
| OVER TIONESTA CREEK S BR | Pennsylvania | Fair | 1940 | 86 | 1,101 |
| OVER CALDWELL CREEK | Pennsylvania | Fair | 1940 | 86 | 100 |
| OVER KIANTONE CREEK | Pennsylvania | Poor | 1940 | 86 | 100 |
| OVER GARLAND RUN | Pennsylvania | Poor | 1940 | 86 | 100 |
| OVER TIDIOUTE CREEK | Pennsylvania | Fair | 1940 | 86 | 250 |
| BRUSH RUN | Pennsylvania | Fair | 1940 | 86 | 25,646 |
| BUFFALO CREEK | Pennsylvania | Fair | 1940 | 86 | 220 |
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.