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 |
|---|---|---|---|---|---|
| MUCKINIPATTIS CREEK | Pennsylvania | Fair | 1943 | 83 | 4,383 |
| OVER BNSF & CSX RR | Pennsylvania | Fair | 1943 | 83 | 9,462 |
| LITTLE BRUSH CREEK | Pennsylvania | Fair | 1943 | 83 | 199 |
| MARKEE RUN | Pennsylvania | Fair | 1943 | 83 | 350 |
| BR TUNKHANNOCK CREEK | Pennsylvania | Fair | 1943 | 83 | 794 |
| Trib Conestoga River | Pennsylvania | Fair | 1943 | 83 | 2,522 |
| OVER LITTLE INDIAN RUN | Pennsylvania | Fair | 1943 | 83 | 2,741 |
| OVER LITTLE MUNCY CR. | Pennsylvania | Fair | 1943 | 83 | 2,741 |
| W BR.CHILLISQUAQUE CREEK | Pennsylvania | Good | 1943 | 83 | 441 |
| COWLEY RUN | Pennsylvania | Poor | 1943 | 83 | 587 |
| PENNS CREEK | Pennsylvania | Fair | 1943 | 83 | 19,255 |
| SHADE CREEK | Pennsylvania | Good | 1943 | 83 | 677 |
| OVER PENNS CREEK | Pennsylvania | Good | 1943 | 83 | 4,856 |
| CATFISH CREEK | Pennsylvania | Poor | 1943 | 83 | 15,885 |
| BR OF LITTLE CHARTIERS C | Pennsylvania | Fair | 1943 | 83 | 645 |
| BARRS RUN | Pennsylvania | Good | 1943 | 83 | 1,598 |
| BURGETTS FORK | Pennsylvania | Fair | 1943 | 83 | 2,867 |
| LACKAWAXEN RIVER | Pennsylvania | Fair | 1943 | 83 | 7,151 |
| LACKAWAXEN RIVER | Pennsylvania | Good | 1943 | 83 | 14,423 |
| LACKAWAXEN RIVER | Pennsylvania | Fair | 1943 | 83 | 7,579 |
| MIDDLE CR & ABANDONED RR | Pennsylvania | Poor | 1943 | 83 | 3,788 |
| CARLEY BROOK | Pennsylvania | Fair | 1943 | 83 | 623 |
| CARLEY BROOK | Pennsylvania | Fair | 1943 | 83 | 623 |
| MIDDLE CREEK | Pennsylvania | Good | 1943 | 83 | 60 |
| HAYMAKERS RUN | Pennsylvania | Fair | 1943 | 83 | 39,026 |
| BEAVER RUN | Pennsylvania | Poor | 1943 | 83 | 150 |
| NORFOLK SOUTHERN RR | Pennsylvania | Fair | 1943 | 83 | 200 |
| MUDDY RUN | Pennsylvania | Fair | 1943 | 83 | 40 |
| SMALL STREAM | Pennsylvania | Fair | 1943 | 83 | 35 |
| ROCKY SPRINGS BRANCH | Pennsylvania | Fair | 1943 | 83 | 10 |
| WOLF CREEK | Pennsylvania | Poor | 1944 | 82 | 438 |
| BOBBY RUN | Pennsylvania | Fair | 1944 | 82 | 310 |
| BEAVER CREEK | Pennsylvania | Fair | 1944 | 82 | 16,072 |
| TRIB.MANADA CREEK | Pennsylvania | Fair | 1944 | 82 | 7,565 |
| BOW CREEK | Pennsylvania | Fair | 1944 | 82 | 8,481 |
| US 322; Main St | Pennsylvania | Fair | 1944 | 82 | 13,638 |
| JORDAN CREEK | Pennsylvania | Fair | 1944 | 82 | 200 |
| TRIBUTARY MIDDLE CREEK | Pennsylvania | Fair | 1944 | 82 | 388 |
| NORTH BRANCH MIDDLE CRK | Pennsylvania | Fair | 1944 | 82 | 569 |
| LACKAWAXEN RIVER | Pennsylvania | Fair | 1944 | 82 | 11,439 |
| EQUINUNK CREEK | Pennsylvania | Poor | 1944 | 82 | 311 |
| MAPLEWOOD CREEK | Pennsylvania | Fair | 1944 | 82 | 67 |
| LACKAWAXEN RIVER | Pennsylvania | Fair | 1944 | 82 | 3,245 |
| VANAUKEN CREEK | Pennsylvania | Poor | 1944 | 82 | 210 |
| LATIMORE CREEK | Pennsylvania | Poor | 1945 | 81 | 150 |
| ABANDONED MOUNTOUR RR | Pennsylvania | Good | 1945 | 81 | 2,366 |
| ROBINSON RUN N BRANCH | Pennsylvania | Poor | 1945 | 81 | - |
| CSX RR (3 RIVER RAILWAY) | Pennsylvania | Poor | 1945 | 81 | 1,138 |
| MARTINS CREEK | Pennsylvania | Fair | 1945 | 81 | 2,347 |
| SOLOMON RUN | Pennsylvania | Poor | 1945 | 81 | 308 |
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.