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 |
|---|---|---|---|---|---|
| MINARD RUN | Pennsylvania | Poor | 1931 | 95 | 250 |
| BIG RUN | Pennsylvania | Fair | 1931 | 95 | 2,136 |
| MACOBY CREEK | Pennsylvania | Poor | 1931 | 95 | 731 |
| W. BR. PERKIOMEN CREEK | Pennsylvania | Poor | 1931 | 95 | 2,689 |
| PERKIOMEN CREEK | Pennsylvania | Fair | 1931 | 95 | 2,973 |
| SANDY RUN | Pennsylvania | Poor | 1931 | 95 | 8,478 |
| SEPTA | Pennsylvania | Poor | 1931 | 95 | 8,669 |
| SAW MILL RUN CREEK | Pennsylvania | Fair | 1931 | 95 | 6,882 |
| SANATOGA CREEK | Pennsylvania | Poor | 1931 | 95 | 1,153 |
| WISSAHICKON CREEK | Pennsylvania | Fair | 1931 | 95 | 7,035 |
| HARTENSTINE CREEK | Pennsylvania | Fair | 1931 | 95 | 13,785 |
| MILL CREEK | Pennsylvania | Fair | 1931 | 95 | 770 |
| MIDDLE CREEK | Pennsylvania | Fair | 1931 | 95 | 250 |
| STONY RUN | Pennsylvania | Fair | 1931 | 95 | 200 |
| SAW MILL RUN | Pennsylvania | Poor | 1931 | 95 | 4,000 |
| OVER SCHWABEN CREEK | Pennsylvania | Fair | 1931 | 95 | 740 |
| LITTLE BUSHKILL CREEK | Pennsylvania | Poor | 1931 | 95 | 300 |
| PINE CREEK | Pennsylvania | Fair | 1931 | 95 | 934 |
| MAHANTANGO CREEK | Pennsylvania | Fair | 1931 | 95 | 66 |
| S FORK BRANCH BENS CREEK | Pennsylvania | Poor | 1931 | 95 | 1,285 |
| OVER TROUT RUN | Pennsylvania | Fair | 1931 | 95 | 949 |
| OVER DRY RUN | Pennsylvania | Fair | 1931 | 95 | 1,993 |
| OVER PATCHEL RUN | Pennsylvania | Fair | 1931 | 95 | 515 |
| OVER MATTHEWS RUN | Pennsylvania | Poor | 1931 | 95 | 1,107 |
| OVER BROWN RUN | Pennsylvania | Fair | 1931 | 95 | 1,105 |
| OVER PINE VALLEY BROOK | Pennsylvania | Fair | 1931 | 95 | 486 |
| OVER GLADE RUN | Pennsylvania | Good | 1931 | 95 | 7,611 |
| MINGO RUN | Pennsylvania | Poor | 1931 | 95 | 6,966 |
| TENMILE CREEK | Pennsylvania | Poor | 1931 | 95 | 242 |
| NINE MILE RUN | Pennsylvania | Fair | 1931 | 95 | 24,684 |
| BARREN RUN | Pennsylvania | Fair | 1931 | 95 | 2,589 |
| TRIB SUSQUEHANNA RIVER | Pennsylvania | Fair | 1931 | 95 | 2,851 |
| MONROE CREEK | Pennsylvania | Poor | 1931 | 95 | 1,695 |
| FISHING CREEK | Pennsylvania | Fair | 1931 | 95 | 2,205 |
| CABIN CREEK | Pennsylvania | Fair | 1931 | 95 | 2,577 |
| STONY RUN | Pennsylvania | Fair | 1931 | 95 | 150 |
| MANHATTAN RUN | Pennsylvania | Fair | 1931 | 95 | 1,500 |
| SCHUYLKILL EXPRESSWAY | Pennsylvania | Fair | 1931 | 95 | 18,011 |
| WISSAHICKON CR;LINCOLN D | Pennsylvania | Fair | 1931 | 95 | 28,435 |
| 30th Street (Lower) | Pennsylvania | Poor | 1931 | 95 | 8,500 |
| Conrail & B&O Railroad | Pennsylvania | Fair | 1931 | 95 | 75,000 |
| CONRAIL (Richmond Br) | Pennsylvania | Fair | 1931 | 95 | 2,000 |
| Pennypack Creek | Pennsylvania | Fair | 1931 | 95 | 11,600 |
| LONG RUN | Pennsylvania | Fair | 1931 | 95 | 100 |
| ABANDONED RR | Pennsylvania | Fair | 1931 | 95 | 21,000 |
| ABANDONED RR | Pennsylvania | Fair | 1931 | 95 | 21,000 |
| MEADOW BROOK | Pennsylvania | Fair | 1931 | 95 | 3,000 |
| TRIB TO QUAKER RUN | Pennsylvania | Fair | 1932 | 94 | 4,982 |
| CONEWAGO CREEK | Pennsylvania | Fair | 1932 | 94 | 1,685 |
| MUD CREEK | Pennsylvania | Fair | 1932 | 94 | 1,174 |
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.