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 |
|---|---|---|---|---|---|
| PA TPK (I-76) | Pennsylvania | Fair | 1950 | 76 | 706 |
| PA TPK (I-76) | Pennsylvania | Fair | 1950 | 76 | 2,462 |
| PA TPK (I-76) | Pennsylvania | Fair | 1950 | 76 | 588 |
| S.FORK OF POWELL CREEK | Pennsylvania | Fair | 1950 | 76 | 100 |
| PAXTON CREEK | Pennsylvania | Poor | 1950 | 76 | 750 |
| DARBY CREEK | Pennsylvania | Poor | 1950 | 76 | 29,754 |
| MUCKINIPATTIS CREEK | Pennsylvania | Poor | 1950 | 76 | 140 |
| OVER ALDER BROOK | Pennsylvania | Fair | 1950 | 76 | 4,139 |
| OVER WALNUT CREEK | Pennsylvania | Fair | 1950 | 76 | 31,986 |
| BRANCH OF REDSTONE CREEK | Pennsylvania | Fair | 1950 | 76 | 1,523 |
| BACK CREEK | Pennsylvania | Fair | 1950 | 76 | 150 |
| CHAMPION CREEK | Pennsylvania | Poor | 1950 | 76 | 190 |
| POPLAR RUN | Pennsylvania | Poor | 1950 | 76 | 30 |
| ROCKY MT CR | Pennsylvania | Fair | 1950 | 76 | 1,272 |
| Racoon Creek | Pennsylvania | Fair | 1950 | 76 | 1,272 |
| ROCKY MT CREEK | Pennsylvania | Fair | 1950 | 76 | 1,272 |
| CONOCOCHEAGUE CREEK W.BR | Pennsylvania | Fair | 1950 | 76 | 222 |
| E. BR. LITTLE ANTIETAM | Pennsylvania | Fair | 1950 | 76 | 300 |
| LITTLE WHITELEY CREEK | Pennsylvania | Fair | 1950 | 76 | 14,315 |
| HOOVER RUN | Pennsylvania | Fair | 1950 | 76 | 2,551 |
| HARTSLOG CREEK | Pennsylvania | Fair | 1950 | 76 | 3,808 |
| CROOKED CREEK | Pennsylvania | Fair | 1950 | 76 | 3,808 |
| BR.OF SPRUCE CREEK | Pennsylvania | Fair | 1950 | 76 | 1,010 |
| WARRIORS MARK RUN | Pennsylvania | Fair | 1950 | 76 | 1,010 |
| E.BR.STANDING STONE CRK. | Pennsylvania | Fair | 1950 | 76 | 108 |
| LICK RUN | Pennsylvania | Fair | 1950 | 76 | 194 |
| LITTLE TROUGH CREEK | Pennsylvania | Fair | 1950 | 76 | 175 |
| YELLOW CREEK | Pennsylvania | Fair | 1950 | 76 | 50 |
| LOST CREEK | Pennsylvania | Good | 1950 | 76 | 16 |
| COCOLAMUS CREEK | Pennsylvania | Good | 1950 | 76 | 50 |
| DELAWARE CREEK | Pennsylvania | Fair | 1950 | 76 | 520 |
| LOST CREEK | Pennsylvania | Poor | 1950 | 76 | 100 |
| TRIB. TO COCOLAMUS CREEK | Pennsylvania | Poor | 1950 | 76 | 610 |
| COCOLAMUS CREEK | Pennsylvania | Fair | 1950 | 76 | 50 |
| S BR TUNKHANNOCK CREEK | Pennsylvania | Fair | 1950 | 76 | 5,038 |
| RACKET BROOK | Pennsylvania | Poor | 1950 | 76 | 70 |
| LACKAWANNA RIVER | Pennsylvania | Poor | 1950 | 76 | - |
| Octoraro Crk (Reservior) | Pennsylvania | Fair | 1950 | 76 | 6,522 |
| MUDDY CREEK | Pennsylvania | Fair | 1950 | 76 | 4,523 |
| W BR OCTORARO CREEK | Pennsylvania | Poor | 1950 | 76 | 554 |
| Trib to Beaver Creek | Pennsylvania | Fair | 1950 | 76 | 824 |
| PEQUEA CREEK | Pennsylvania | Fair | 1950 | 76 | 640 |
| PA TPK (I-76) | Pennsylvania | Good | 1950 | 76 | 1,794 |
| PA TPK (I-76) | Pennsylvania | Fair | 1950 | 76 | 12,464 |
| PA TPK (I-76) | Pennsylvania | Fair | 1950 | 76 | 143 |
| MIDDLE CREEK | Pennsylvania | Fair | 1950 | 76 | 24,971 |
| PA TPK (I-76) | Pennsylvania | Fair | 1950 | 76 | 1,344 |
| PA TPK (I-76) | Pennsylvania | Fair | 1950 | 76 | 330 |
| INDIAN RUN | Pennsylvania | Good | 1950 | 76 | 24,971 |
| PA TPK (I-76) | Pennsylvania | Fair | 1950 | 76 | 3,121 |
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.