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 |
|---|---|---|---|---|---|
| RACCOON CREEK TRIB | Pennsylvania | Fair | 1903 | 123 | 15 |
| RACCOON CREEK | Pennsylvania | Poor | 1903 | 123 | 80 |
| PIKE RUN | Pennsylvania | Good | 1903 | 123 | 300 |
| FRANKFORD CREEK | Pennsylvania | Poor | 1903 | 123 | 12,916 |
| SEPTA | Pennsylvania | Good | 1903 | 123 | 9,300 |
| PIGEON CREEK trib | Pennsylvania | Fair | 1903 | 123 | 150 |
| NORFOLK SOUTHERN R/R | Pennsylvania | Good | 1903 | 123 | 3,479 |
| MIDDLE CREEK | Pennsylvania | Poor | 1904 | 122 | 75 |
| ALLEGHENY VALLEY RR | Pennsylvania | Fair | 1904 | 122 | 8,000 |
| MAIDEN CREEK | Pennsylvania | Fair | 1904 | 122 | 63 |
| TOWANDA CREEK | Pennsylvania | Poor | 1904 | 122 | 50 |
| DELAWARE River | Pennsylvania | Fair | 1904 | 122 | 5,600 |
| DELAWARE RIVER | Pennsylvania | Fair | 1904 | 122 | 10,300 |
| DELAWARE River | Pennsylvania | Fair | 1904 | 122 | 3,300 |
| CRUM CREEK | Pennsylvania | Fair | 1904 | 122 | 1,874 |
| SOUTH BR. FRENCH CREEK | Pennsylvania | Fair | 1904 | 122 | 136 |
| EAST BR MAHONING CREEK | Pennsylvania | Fair | 1904 | 122 | 40 |
| WOODCOCK CREEK | Pennsylvania | Fair | 1904 | 122 | 67 |
| AMTRAK MAIN LINE | Pennsylvania | Poor | 1904 | 122 | 3,659 |
| OVER FRENCH CREEK TRIB | Pennsylvania | Fair | 1904 | 122 | 213 |
| Meadow Run | Pennsylvania | Poor | 1904 | 122 | 55 |
| TR Conococheague Creek | Pennsylvania | Fair | 1904 | 122 | 10,617 |
| E BR CONOCOCHEAGUE CR | Pennsylvania | Good | 1904 | 122 | 100 |
| SUMMIT LAKE CREEK | Pennsylvania | Fair | 1904 | 122 | 5,417 |
| BIG RUN | Pennsylvania | Fair | 1904 | 122 | 8,919 |
| LITTLE SWATARA CREEK | Pennsylvania | Poor | 1904 | 122 | 50 |
| LITTLE MUNCY CREEK | Pennsylvania | Good | 1904 | 122 | 30 |
| OVER MILL RUN | Pennsylvania | Fair | 1904 | 122 | 267 |
| NORFOLK SOUTHERN | Pennsylvania | Fair | 1904 | 122 | 6,927 |
| DELAWARE River | Pennsylvania | Fair | 1904 | 122 | 4,500 |
| GLADE RUN | Pennsylvania | Poor | 1904 | 122 | — |
| HALLOWING RUN | Pennsylvania | Poor | 1904 | 122 | 25 |
| LICK RUN | Pennsylvania | Good | 1904 | 122 | 175 |
| Zerbe Run | Pennsylvania | Poor | 1904 | 122 | 400 |
| SHERMAN CREEK | Pennsylvania | Fair | 1904 | 122 | 75 |
| LITTLE SCHUYLKILL RIVER | Pennsylvania | Good | 1904 | 122 | 6,528 |
| RACCOON CREEK TRIB | Pennsylvania | Fair | 1904 | 122 | 10 |
| RACCOON CREEK trib | Pennsylvania | Good | 1904 | 122 | 40 |
| RACCOON CREEK TRIB | Pennsylvania | Good | 1904 | 122 | 20 |
| SEWICKLEY CREEK | Pennsylvania | Poor | 1904 | 122 | 227 |
| POQUESSING CREEK | Pennsylvania | Fair | 1904 | 122 | 22,647 |
| MON RIVER & PRIVATE RR | Pennsylvania | Fair | 1904 | 122 | 17,500 |
| LIZARD CREEK | Pennsylvania | Fair | 1904 | 122 | 350 |
| Middle Creek | Pennsylvania | Good | 1905 | 121 | 25 |
| WYLIE RUN | Pennsylvania | Poor | 1905 | 121 | 6,411 |
| WASHINGTON BLVD (RT 8) | Pennsylvania | Fair | 1905 | 121 | 7,850 |
| N-S RR-ALLEGHENY PARK | Pennsylvania | Poor | 1905 | 121 | 21,000 |
| MCKINLEY RUN | Pennsylvania | Fair | 1905 | 121 | 520 |
| BLOCKHOUSE RUN | Pennsylvania | Fair | 1905 | 121 | 50 |
| SACONY CREEK | Pennsylvania | Poor | 1905 | 121 | 65 |
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.