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 |
|---|---|---|---|---|---|
| CHERRY RUN | Pennsylvania | Poor | 1915 | 111 | 25 |
| FROMAN RUN | Pennsylvania | Fair | 1915 | 111 | 7,022 |
| FROMAN RUN | Pennsylvania | Fair | 1915 | 111 | 7,022 |
| BUFFALO CREEK | Pennsylvania | Fair | 1915 | 111 | 1,746 |
| BUFFALO CREEK | Pennsylvania | Good | 1915 | 111 | 38 |
| BUFFALO CREEK TRIB. | Pennsylvania | Poor | 1915 | 111 | 90 |
| BEAVER RUN | Pennsylvania | Poor | 1915 | 111 | — |
| WHITEHORN CREEK | Pennsylvania | Poor | 1915 | 111 | 30 |
| JACKS RUN | Pennsylvania | Poor | 1915 | 111 | 100 |
| BENNETT RUN | Pennsylvania | Fair | 1915 | 111 | 341 |
| BEAVER CREEK | Pennsylvania | Fair | 1915 | 111 | 298 |
| SO BRANCH CODORUS CREEK | Pennsylvania | Fair | 1915 | 111 | 1,238 |
| SW DRAINAGE CANAL | Pennsylvania | Fair | 1915 | 111 | 29,821 |
| DRAINAGE CANAL | Pennsylvania | Fair | 1915 | 111 | — |
| CONRAIL (TRACK REMOVED) | Pennsylvania | Good | 1915 | 111 | 7,100 |
| CONRAIL | Pennsylvania | Fair | 1915 | 111 | 3,600 |
| Wissahickon Creek | Pennsylvania | Poor | 1915 | 111 | 100 |
| FDR Park Lake | Pennsylvania | Fair | 1915 | 111 | 300 |
| FDR Park Lake | Pennsylvania | Fair | 1915 | 111 | 10 |
| FDR Park Lake | Pennsylvania | Fair | 1915 | 111 | 300 |
| Hollander Creek | Pennsylvania | Fair | 1915 | 111 | 300 |
| Hollander Creek | Pennsylvania | Fair | 1915 | 111 | 300 |
| WHEELING CREEK TRIB | Pennsylvania | Fair | 1915 | 111 | 30 |
| TENMILE CREEK | Pennsylvania | Poor | 1915 | 111 | 20 |
| GOSHENHOPPEN CREEK | Pennsylvania | Fair | 1915 | 111 | 1,000 |
| THORN CREEK | Pennsylvania | Poor | 1915 | 111 | 300 |
| LEAK RUN | Pennsylvania | Fair | 1916 | 110 | 5,157 |
| BIG PUCKETA CREEK | Pennsylvania | Fair | 1916 | 110 | 440 |
| BIG SEWICKLEY CREEK | Pennsylvania | Fair | 1916 | 110 | 408 |
| TRIB TO ALLEGHENY RIVER | Pennsylvania | Fair | 1916 | 110 | 159 |
| RACCOON CREEK | Pennsylvania | Fair | 1916 | 110 | 50 |
| LAKE GORDON | Pennsylvania | Fair | 1916 | 110 | 159 |
| NORFOLK/SOUTHERN RR | Pennsylvania | Poor | 1916 | 110 | 7,121 |
| NORFOLK SOUTHERN | Pennsylvania | Fair | 1916 | 110 | 6,878 |
| SEPTA WEST TRENTON BR. | Pennsylvania | Poor | 1916 | 110 | 8,438 |
| LITTL CONNOQUENESSING CR | Pennsylvania | Poor | 1916 | 110 | 100 |
| MULLIGAN RUN | Pennsylvania | Fair | 1916 | 110 | 50 |
| B&P RAILROAD | Pennsylvania | Poor | 1916 | 110 | 50 |
| SCHUYLKILL RIVER | Pennsylvania | Fair | 1916 | 110 | 6,319 |
| BRANCH WHITE CLAY CREEK | Pennsylvania | Fair | 1916 | 110 | 1,211 |
| OFFICERS RUN | Pennsylvania | Fair | 1916 | 110 | 2,465 |
| RAILROAD WILMINGTON BR. | Pennsylvania | Poor | 1916 | 110 | 833 |
| BEAVER CREEK | Pennsylvania | Fair | 1916 | 110 | 1,979 |
| BEAVER CREEK | Pennsylvania | Good | 1916 | 110 | 391 |
| STONY RUN | Pennsylvania | Fair | 1916 | 110 | 1,235 |
| PIGEON CREEK | Pennsylvania | Fair | 1916 | 110 | 264 |
| EAST BRANCH CHESTER CRK. | Pennsylvania | Fair | 1916 | 110 | 2,300 |
| OVER SHENANGO RIVER N BR | Pennsylvania | Fair | 1916 | 110 | 3,887 |
| OVER MILL RUN | Pennsylvania | Fair | 1916 | 110 | 2,500 |
| OVER MILL RUN | Pennsylvania | Poor | 1916 | 110 | 1,500 |
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.