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 |
|---|---|---|---|---|---|
| BOBS CREEK | Pennsylvania | Poor | 1936 | 90 | 251 |
| MORGAN CREEK | Pennsylvania | Poor | 1936 | 90 | 35,087 |
| BEAVER RUN | Pennsylvania | Poor | 1936 | 90 | 30,549 |
| BRANCH NESHAMINY CREEK | Pennsylvania | Fair | 1936 | 90 | 9,883 |
| THREE MILE RUN | Pennsylvania | Fair | 1936 | 90 | 9,840 |
| RIDGE VALLEY CREEK | Pennsylvania | Fair | 1936 | 90 | 100 |
| TRIB OF WOLF CREEK | Pennsylvania | Fair | 1936 | 90 | 4,083 |
| FINDLAY RUN | Pennsylvania | Poor | 1936 | 90 | 100 |
| ANDERSON RUN | Pennsylvania | Poor | 1936 | 90 | 200 |
| SANDY RUN | Pennsylvania | Fair | 1936 | 90 | 75 |
| STEWART CREEK | Pennsylvania | Fair | 1936 | 90 | 419 |
| HICKORY RUN | Pennsylvania | Fair | 1936 | 90 | 50 |
| WALLACE RUN | Pennsylvania | Fair | 1936 | 90 | 250 |
| LITTLE FISHING CREEK | Pennsylvania | Poor | 1936 | 90 | 150 |
| ROARING RUN | Pennsylvania | Fair | 1936 | 90 | 200 |
| RED CLAY CREEK | Pennsylvania | Fair | 1936 | 90 | 1,485 |
| BENNETT BRANCH | Pennsylvania | Fair | 1936 | 90 | 3,403 |
| W BR SUSQUEHANNA RIVER | Pennsylvania | Fair | 1936 | 90 | 240 |
| MOSQUITO CREEK | Pennsylvania | Fair | 1936 | 90 | 15 |
| OVER FISHING CREEK | Pennsylvania | Fair | 1936 | 90 | 6,786 |
| OVER BLACK RUN | Pennsylvania | Fair | 1936 | 90 | 115 |
| LITTLE BRIER RUN | Pennsylvania | Poor | 1936 | 90 | 122 |
| GREEN CREEK | Pennsylvania | Poor | 1936 | 90 | 50 |
| TEN MILE RUN | Pennsylvania | Poor | 1936 | 90 | 100 |
| OVER FRENCH CREEK | Pennsylvania | Poor | 1936 | 90 | 5,823 |
| OVER LITTLE FEDERAL RUN | Pennsylvania | Good | 1936 | 90 | 310 |
| OVER MOSEY RUN | Pennsylvania | Poor | 1936 | 90 | 310 |
| OVER CONNEAUT CREEK BR | Pennsylvania | Fair | 1936 | 90 | 151 |
| OVER MID BR CONN CREEK | Pennsylvania | Good | 1936 | 90 | 151 |
| OVER CONNEAUT CREEK BR | Pennsylvania | Fair | 1936 | 90 | 151 |
| OVER FRENCH CREEK | Pennsylvania | Poor | 1936 | 90 | 9,000 |
| HOGESTOWN RUN | Pennsylvania | Fair | 1936 | 90 | 11,581 |
| SPRING CREEK | Pennsylvania | Fair | 1936 | 90 | 14,631 |
| OVER CROOKED CREEK | Pennsylvania | Fair | 1936 | 90 | 1,409 |
| OVER B&LE R.R.& RUN | Pennsylvania | Fair | 1936 | 90 | 2,871 |
| MCINTIRE RUN | Pennsylvania | Good | 1936 | 90 | 522 |
| OVER MINISTER CREEK | Pennsylvania | Fair | 1936 | 90 | 139 |
| BARNETTS RUN | Pennsylvania | Poor | 1936 | 90 | 536 |
| S BR LITTLE AUGHWICK CRK | Pennsylvania | Good | 1936 | 90 | 845 |
| S.BR.L. AUGHWICK CREEK | Pennsylvania | Fair | 1936 | 90 | 845 |
| TUSCARORA CREEK | Pennsylvania | Fair | 1936 | 90 | 58 |
| HARES VALLEY CREEK | Pennsylvania | Fair | 1936 | 90 | 435 |
| WARRIORS MARK RUN | Pennsylvania | Fair | 1936 | 90 | 300 |
| LAUREL RUN | Pennsylvania | Fair | 1936 | 90 | 50 |
| BIG RUN | Pennsylvania | Fair | 1936 | 90 | 2,634 |
| TEARING RUN | Pennsylvania | Poor | 1936 | 90 | 395 |
| MUDDY RUN | Pennsylvania | Fair | 1936 | 90 | 98 |
| MITCHELL RUN | Pennsylvania | Fair | 1936 | 90 | 495 |
| SOLDIER RUN | Pennsylvania | Fair | 1936 | 90 | 4,344 |
| SOLDIER RUN | Pennsylvania | Fair | 1936 | 90 | 4,344 |
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.