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 |
|---|---|---|---|---|---|
| LANIGAN RUN | Pennsylvania | Poor | 1948 | 78 | 23 |
| TUNUNGWANT CREEK | Pennsylvania | Fair | 1948 | 78 | 2,305 |
| OVER SHENANGO RIVER TRIB | Pennsylvania | Fair | 1948 | 78 | 6,906 |
| OVER SPRING CREEK | Pennsylvania | Poor | 1948 | 78 | 3,889 |
| OVER YELLOW CREEK | Pennsylvania | Fair | 1948 | 78 | 3,760 |
| CARTERS RUN | Pennsylvania | Fair | 1948 | 78 | 5,994 |
| CARTERS RUN | Pennsylvania | Fair | 1948 | 78 | 5,213 |
| BUCK HILL CREEK | Pennsylvania | Fair | 1948 | 78 | 390 |
| SCOT RUN | Pennsylvania | Fair | 1948 | 78 | 11,830 |
| SCOT RUN | Pennsylvania | Fair | 1948 | 78 | 21,965 |
| SCOT RUN | Pennsylvania | Fair | 1948 | 78 | 21,965 |
| SCOT RUN | Pennsylvania | Good | 1948 | 78 | 21,965 |
| WEIR CREEK | Pennsylvania | Fair | 1948 | 78 | 904 |
| POHOPOCO CREEK | Pennsylvania | Fair | 1948 | 78 | 904 |
| TRIB. TO SCHLEGEL RUN | Pennsylvania | Fair | 1948 | 78 | 100 |
| SECHLER RUN | Pennsylvania | Good | 1948 | 78 | 3,957 |
| MONOCACY CREEK | Pennsylvania | Fair | 1948 | 78 | 400 |
| DRY RUN | Pennsylvania | Fair | 1948 | 78 | 460 |
| SCHWABEN CREEK | Pennsylvania | Poor | 1948 | 78 | 65 |
| BUFFALO CREEK | Pennsylvania | Good | 1948 | 78 | 333 |
| WILDCAT RUN | Pennsylvania | Poor | 1948 | 78 | 401 |
| TRIB BUFFALO CREEK | Pennsylvania | Poor | 1948 | 78 | 252 |
| OUTLET SAWKILL POND | Pennsylvania | Good | 1948 | 78 | 1,909 |
| SOUTH BRANCH MIDDLE CRK | Pennsylvania | Fair | 1948 | 78 | 1,099 |
| MIDDLE CREEK | Pennsylvania | Good | 1948 | 78 | 344 |
| TRIBUTARY MIDDLE CREEK | Pennsylvania | Fair | 1948 | 78 | 388 |
| TRIBUTARY MIDDLE CREEK | Pennsylvania | Fair | 1948 | 78 | 388 |
| W. BR. MAHANTANGO | Pennsylvania | Poor | 1948 | 78 | 75 |
| CSX RAILROAD | Pennsylvania | Poor | 1948 | 78 | 205 |
| MEYLERT CREEK | Pennsylvania | Fair | 1948 | 78 | 4,442 |
| SALT LICK CREEK | Pennsylvania | Good | 1948 | 78 | 5,124 |
| BRANCH SALT LICK CREEK | Pennsylvania | Good | 1948 | 78 | 5,124 |
| TUSCARORA CREEK | Pennsylvania | Good | 1948 | 78 | 392 |
| BRANCH TUSCARORA CREEK | Pennsylvania | Poor | 1948 | 78 | 210 |
| OVER MITCHELL CREEK | Pennsylvania | Fair | 1948 | 78 | 3,465 |
| NORTH FORK CREEK | Pennsylvania | Fair | 1948 | 78 | 4,304 |
| COWANESQUE RIVER | Pennsylvania | Good | 1948 | 78 | 4,910 |
| OVER BR BALDWIN RUN | Pennsylvania | Fair | 1948 | 78 | 4,777 |
| BLACK RUN | Pennsylvania | Fair | 1948 | 78 | 2,489 |
| OVER SPRUCE RUN | Pennsylvania | Fair | 1948 | 78 | 2,792 |
| OVER SWEITZERS RUN | Pennsylvania | Poor | 1948 | 78 | 1,383 |
| OVER DUTCHMANS RUN | Pennsylvania | Poor | 1948 | 78 | 6,433 |
| LITTLE CHARTIERS CREEK | Pennsylvania | Fair | 1948 | 78 | 20,663 |
| DRY RUN | Pennsylvania | Fair | 1948 | 78 | 2,911 |
| ROBINSON FORK | Pennsylvania | Poor | 1948 | 78 | 476 |
| RACCOON CREEK | Pennsylvania | Fair | 1948 | 78 | 588 |
| EAST BR LACKAWANNA RIVER | Pennsylvania | Poor | 1948 | 78 | 775 |
| SHEHAWKEN CREEK | Pennsylvania | Fair | 1948 | 78 | 1,179 |
| BRUSH RUN | Pennsylvania | Fair | 1948 | 78 | 9,597 |
| SR 0092 TR 92 | Pennsylvania | Good | 1948 | 78 | 2,682 |
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.