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 |
|---|---|---|---|---|---|
| SUCKER RUN | Pennsylvania | Fair | 1933 | 93 | 3,377 |
| BLACK FOX RUN | Pennsylvania | Fair | 1933 | 93 | 95 |
| BALD EAGLE CREEK | Pennsylvania | Fair | 1933 | 93 | 14,443 |
| HAMMERSLEY FORK | Pennsylvania | Fair | 1933 | 93 | 15 |
| CARR RUN TRIB | Pennsylvania | Fair | 1933 | 93 | 1,965 |
| OVER CUSSEWAGO CREEK | Pennsylvania | Fair | 1933 | 93 | 1,743 |
| OVER PYMATUNING RES | Pennsylvania | Fair | 1933 | 93 | 3,104 |
| OVER SUGAR RUN | Pennsylvania | Fair | 1933 | 93 | 1,902 |
| CONODOGUINET CREEK | Pennsylvania | Fair | 1933 | 93 | 2,789 |
| CHESTER CREEK | Pennsylvania | Poor | 1933 | 93 | 3,875 |
| OVER SIX MILE CREEK | Pennsylvania | Poor | 1933 | 93 | 6,635 |
| OVER TIONESTA DAM CREEK | Pennsylvania | Poor | 1933 | 93 | 284 |
| OVER EAST HICKORY CREEK | Pennsylvania | Fair | 1933 | 93 | 100 |
| Dry Run | Pennsylvania | Fair | 1933 | 93 | 2,708 |
| CLIPPINGER RUN | Pennsylvania | Good | 1933 | 93 | 1,478 |
| WELSH RUN | Pennsylvania | Poor | 1933 | 93 | 1,097 |
| LITTLE TONOLOWAY CREEK | Pennsylvania | Poor | 1933 | 93 | 243 |
| FISH CREEK | Pennsylvania | Fair | 1933 | 93 | 839 |
| BRANCH OF MUDDY CREEK | Pennsylvania | Fair | 1933 | 93 | 8,665 |
| WARRIORS MARK RUN | Pennsylvania | Fair | 1933 | 93 | 925 |
| CONEMAUGH RIVER | Pennsylvania | Fair | 1933 | 93 | 6,569 |
| CLARKE RUN | Pennsylvania | Fair | 1933 | 93 | 170 |
| BIG RUN | Pennsylvania | Fair | 1933 | 93 | 99 |
| BEAR BROOK | Pennsylvania | Fair | 1933 | 93 | 2,434 |
| LITTLE ROARING BROOK | Pennsylvania | Fair | 1933 | 93 | 4,827 |
| Shawnee Run | Pennsylvania | Fair | 1933 | 93 | 11,614 |
| Conestoga River | Pennsylvania | Fair | 1933 | 93 | 20,150 |
| Swatara Creek | Pennsylvania | Fair | 1933 | 93 | 1,821 |
| OIL RUN | Pennsylvania | Fair | 1933 | 93 | 1,821 |
| TRIB RACCOON CREEK | Pennsylvania | Poor | 1933 | 93 | 191 |
| LITTLE SWATARA CREEK | Pennsylvania | Poor | 1933 | 93 | 300 |
| LEHIGH RIVER | Pennsylvania | Poor | 1933 | 93 | 13,934 |
| INDIAN CREEK | Pennsylvania | Fair | 1933 | 93 | 529 |
| INDIAN CREEK | Pennsylvania | Poor | 1933 | 93 | 529 |
| INDIAN CREEK | Pennsylvania | Fair | 1933 | 93 | 529 |
| HOSENSACK CREEK | Pennsylvania | Poor | 1933 | 93 | 2,882 |
| TROUT CREEK | Pennsylvania | Fair | 1933 | 93 | 3,029 |
| NESCOPECK CREEK | Pennsylvania | Fair | 1933 | 93 | 50 |
| W. BR. SUSQUEHANNA RIVER | Pennsylvania | Fair | 1933 | 93 | 5,026 |
| OVER MILL CREEK | Pennsylvania | Fair | 1933 | 93 | 1,316 |
| LARRYS CREEK | Pennsylvania | Fair | 1933 | 93 | 114 |
| SLATE RUN | Pennsylvania | Poor | 1933 | 93 | 5 |
| OVER SANDY CREEK | Pennsylvania | Fair | 1933 | 93 | 3,079 |
| OVER LITTLE SHENANGO R | Pennsylvania | Poor | 1933 | 93 | 1,054 |
| MUSSER RUN | Pennsylvania | Fair | 1933 | 93 | 6,199 |
| HONEY CREEK | Pennsylvania | Poor | 1933 | 93 | 45 |
| AQUASHICOLA CREEK | Pennsylvania | Fair | 1933 | 93 | 370 |
| SCHLEGEL RUN | Pennsylvania | Fair | 1933 | 93 | 3,711 |
| PERKIOMEN CREEK 2804H07 | Pennsylvania | Fair | 1933 | 93 | 1,628 |
| STONY CREEK / 3255-J5 | Pennsylvania | Fair | 1933 | 93 | 9,921 |
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.