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 |
|---|---|---|---|---|---|
| MUDDY RUN | Pennsylvania | Fair | 1940 | 86 | 515 |
| CHIQUES CREEK | Pennsylvania | Fair | 1940 | 86 | 600 |
| CONOY CREEK | Pennsylvania | Fair | 1940 | 86 | 2,070 |
| SANTO DOMINGO CREEK | Pennsylvania | Fair | 1940 | 86 | 3,565 |
| MCKEE RUN | Pennsylvania | Fair | 1940 | 86 | 1,011 |
| MCKEE RUN | Pennsylvania | Fair | 1940 | 86 | 1,200 |
| SLIPPERY ROCK CREEK | Pennsylvania | Fair | 1940 | 86 | 179 |
| HICKORY CREEK | Pennsylvania | Poor | 1940 | 86 | 491 |
| NESHANNOCK WEST BRANCH | Pennsylvania | Poor | 1940 | 86 | 150 |
| HICKORY RUN | Pennsylvania | Poor | 1940 | 86 | 50 |
| TULPEHOCKEN CREEK | Pennsylvania | Poor | 1940 | 86 | 8,640 |
| MONROE CREEK | Pennsylvania | Poor | 1940 | 86 | 542 |
| TRIB SWATARA CREEK | Pennsylvania | Fair | 1940 | 86 | 100 |
| TRIB TO SWATARA CK | Pennsylvania | Fair | 1940 | 86 | 100 |
| SNITZ CREEK | Pennsylvania | Fair | 1940 | 86 | 375 |
| NORFOLK SOUTHERN RR | Pennsylvania | Good | 1940 | 86 | 15,826 |
| TRIB. TO SAUCON CREEK | Pennsylvania | Fair | 1940 | 86 | 996 |
| JORDAN CREEK | Pennsylvania | Fair | 1940 | 86 | 50 |
| HUNLOCK CREEK | Pennsylvania | Poor | 1940 | 86 | 6,406 |
| LITTLE WAPWALLOPEN CREEK | Pennsylvania | Poor | 1940 | 86 | 1,253 |
| SR 0309 TR 309 | Pennsylvania | Poor | 1940 | 86 | 1,265 |
| LEONARD CREEK | Pennsylvania | Fair | 1940 | 86 | 1,930 |
| SUTTONS CREEK | Pennsylvania | Fair | 1940 | 86 | 862 |
| LITTLE PINE CREEK | Pennsylvania | Fair | 1940 | 86 | 698 |
| OVER MOSQUITO CREEK | Pennsylvania | Good | 1940 | 86 | 2,129 |
| LARRYS CREEK | Pennsylvania | Fair | 1940 | 86 | 207 |
| MOSQUITO CREEK | Pennsylvania | Good | 1940 | 86 | 300 |
| SLACKS RUN | Pennsylvania | Poor | 1940 | 86 | 108 |
| MILL CREEK | Pennsylvania | Fair | 1940 | 86 | 100 |
| SUGAR RUN | Pennsylvania | Fair | 1940 | 86 | 50 |
| WILLOW CREEK | Pennsylvania | Poor | 1940 | 86 | 520 |
| BENNETT BROOK | Pennsylvania | Poor | 1940 | 86 | 100 |
| TWO MILE RUN | Pennsylvania | Fair | 1940 | 86 | 100 |
| BREWER RUN | Pennsylvania | Fair | 1940 | 86 | 100 |
| BEAVER DAM RUN | Pennsylvania | Fair | 1940 | 86 | 700 |
| BRODHEAD CREEK | Pennsylvania | Fair | 1940 | 86 | 3,060 |
| POND CREEK | Pennsylvania | Fair | 1940 | 86 | 5,948 |
| MARSHALLS CREEK | Pennsylvania | Fair | 1940 | 86 | 5,948 |
| MARSHALLS CREEK | Pennsylvania | Fair | 1940 | 86 | 5,948 |
| MILL CREEK | Pennsylvania | Fair | 1940 | 86 | 10 |
| CHAPPLE CREEK | Pennsylvania | Fair | 1940 | 86 | 100 |
| DOTTERS CREEK | Pennsylvania | Fair | 1940 | 86 | 250 |
| CHERRY CREEK | Pennsylvania | Poor | 1940 | 86 | 38 |
| CHERRY CREEK | Pennsylvania | Poor | 1940 | 86 | 27 |
| SCHOOL HOUSE RUN | Pennsylvania | Fair | 1940 | 86 | 1,300 |
| BUSHKILL CREEK | Pennsylvania | Fair | 1940 | 86 | 3,335 |
| OVER DELWARE RUN | Pennsylvania | Fair | 1940 | 86 | 850 |
| TRIB NORTH BR SUSQ RVR | Pennsylvania | Good | 1940 | 86 | 2,085 |
| OVER LITTLE ROARING CR. | Pennsylvania | Good | 1940 | 86 | 139 |
| OVER MAHANOY CREEK | Pennsylvania | Fair | 1940 | 86 | 1,104 |
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.