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 |
|---|---|---|---|---|---|
| OXBOW CREEK | Pennsylvania | Poor | 1948 | 78 | 423 |
| OXBOW CREEK | Pennsylvania | Fair | 1948 | 78 | 423 |
| Norfolk Southern RR | Pennsylvania | Fair | 1948 | 78 | 46,585 |
| SEAKS RUN | Pennsylvania | Fair | 1948 | 78 | 862 |
| LITTLE CONEWAGO CREEK | Pennsylvania | Poor | 1948 | 78 | 7,454 |
| FISHING CREEK | Pennsylvania | Fair | 1948 | 78 | 1,080 |
| TYLER RUN | Pennsylvania | Fair | 1948 | 78 | 4,610 |
| HUNTING PARK AVE | Pennsylvania | Fair | 1948 | 78 | 9,678 |
| Cobbs Creek | Pennsylvania | Fair | 1948 | 78 | 19,500 |
| MILL RUN | Pennsylvania | Good | 1948 | 78 | 786 |
| East Branch Indian Creek | Pennsylvania | Fair | 1948 | 78 | 500 |
| TRIB TO CONEWAGO CREEK | Pennsylvania | Fair | 1949 | 77 | 6,834 |
| MARSH CREEK | Pennsylvania | Fair | 1949 | 77 | 358 |
| CLIFFMINE RD MONTOUR RN | Pennsylvania | Fair | 1949 | 77 | 62,719 |
| NSRR (Abdn) Allegheny R | Pennsylvania | Fair | 1949 | 77 | 36,878 |
| SUNFISH RUN | Pennsylvania | Fair | 1949 | 77 | 172 |
| PUCKETA CREEK | Pennsylvania | Good | 1949 | 77 | 11,857 |
| MC CLARENS RUN | Pennsylvania | Good | 1949 | 77 | 23,000 |
| CSX (3RIV)& PACIFIC AVE | Pennsylvania | Poor | 1949 | 77 | 3,300 |
| NORFOLK SOUTHERN RR | Pennsylvania | Poor | 1949 | 77 | 643 |
| TRIB TO REDBANK CR | Pennsylvania | Fair | 1949 | 77 | 267 |
| HICKORY BOTTOM CREEK | Pennsylvania | Fair | 1949 | 77 | 3,916 |
| BR.TOWN CREEK | Pennsylvania | Fair | 1949 | 77 | 226 |
| BOBS CREEK | Pennsylvania | Fair | 1949 | 77 | 433 |
| TRIB.MANATAWNY CREEK | Pennsylvania | Fair | 1949 | 77 | 8,579 |
| TRIB. TO IRONSTONE CREEK | Pennsylvania | Fair | 1949 | 77 | 8,562 |
| TULPEHOCKEN CREEK | Pennsylvania | Fair | 1949 | 77 | 8,670 |
| LITTLE SWATARA CREEK | Pennsylvania | Poor | 1949 | 77 | 2,801 |
| TRIB SCHUYLKILL RIV | Pennsylvania | Fair | 1949 | 77 | 5,108 |
| TRIB SCHUYLKILL RIV | Pennsylvania | Fair | 1949 | 77 | 5,108 |
| WYOMISSING CREEK | Pennsylvania | Fair | 1949 | 77 | 1,556 |
| TRIB TO PINE CREEK | Pennsylvania | Poor | 1949 | 77 | 270 |
| MILL RUN | Pennsylvania | Good | 1949 | 77 | 8,276 |
| CHEMUNG RIVER OVERFLOW C | Pennsylvania | Fair | 1949 | 77 | 2,602 |
| DEER LICK CREEK | Pennsylvania | Fair | 1949 | 77 | 1,797 |
| TRIB. TO SATTERLEE CREEK | Pennsylvania | Fair | 1949 | 77 | 779 |
| MILL CREEK | Pennsylvania | Fair | 1949 | 77 | 13,629 |
| TRIB TO MUDDY CREEK | Pennsylvania | Poor | 1949 | 77 | 13,364 |
| HICKORY RUN | Pennsylvania | Fair | 1949 | 77 | 512 |
| MAHONING CREEK | Pennsylvania | Fair | 1949 | 77 | 910 |
| W BR SUSQUEHANNA RIVER | Pennsylvania | Fair | 1949 | 77 | 1,757 |
| BRANCH BEAVER RUN | Pennsylvania | Poor | 1949 | 77 | 166 |
| ANDERSON CREEK | Pennsylvania | Fair | 1949 | 77 | 5,076 |
| TRIB TO SUSQUEHANNA R. | Pennsylvania | Fair | 1949 | 77 | 8,875 |
| OVER OIL CREEK | Pennsylvania | Fair | 1949 | 77 | 2,842 |
| PA TPK (I-76) | Pennsylvania | Good | 1949 | 77 | 200 |
| PA TPK (I-76) | Pennsylvania | Good | 1949 | 77 | 200 |
| HOGESTOWN RUN | Pennsylvania | Fair | 1949 | 77 | 21,790 |
| LR21012 SR1007 | Pennsylvania | Fair | 1949 | 77 | 20,357 |
| PA TPK (I-76) | Pennsylvania | Fair | 1949 | 77 | 11,666 |
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.