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 |
|---|---|---|---|---|---|
| TR.TO S.BR.OF LOYALSOCK | Pennsylvania | Fair | 1941 | 85 | 63 |
| TINKER BROOK | Pennsylvania | Fair | 1941 | 85 | 83 |
| OVER BLACKS CREEK | Pennsylvania | Fair | 1941 | 85 | 2,432 |
| ASAPH RUN | Pennsylvania | Good | 1941 | 85 | 164 |
| CUMMINGS CREEK | Pennsylvania | Fair | 1941 | 85 | 577 |
| OVER COWANESQUE RIVER | Pennsylvania | Fair | 1941 | 85 | 346 |
| SWEITZERS RUN | Pennsylvania | Fair | 1941 | 85 | 2,663 |
| OVER PATCHELL RUN | Pennsylvania | Fair | 1941 | 85 | 4,619 |
| OVER ALLEGHENY RAILROAD | Pennsylvania | Good | 1941 | 85 | 2,308 |
| OVER VALENTINE CREEK | Pennsylvania | Fair | 1941 | 85 | 9,699 |
| OVER MILL RACE RUN | Pennsylvania | Fair | 1941 | 85 | 775 |
| TENMILE CREEK | Pennsylvania | Fair | 1941 | 85 | 1,673 |
| BANE CREEK | Pennsylvania | Fair | 1941 | 85 | 1,341 |
| PIKE RUN | Pennsylvania | Fair | 1941 | 85 | 111 |
| PIKE RUN | Pennsylvania | Fair | 1941 | 85 | 111 |
| LITTLE TENMILE CREEK | Pennsylvania | Poor | 1941 | 85 | 77 |
| MIDDLE WHEELING CREEK | Pennsylvania | Fair | 1941 | 85 | 47 |
| HARMON CREEK | Pennsylvania | Fair | 1941 | 85 | 166 |
| RACCOON CREEK | Pennsylvania | Fair | 1941 | 85 | 1,262 |
| PIGEON CREEK | Pennsylvania | Fair | 1941 | 85 | 510 |
| INDIAN CREEK | Pennsylvania | Fair | 1941 | 85 | 4,068 |
| JACOBS CREEK | Pennsylvania | Fair | 1941 | 85 | 2,817 |
| MILL CREEK | Pennsylvania | Good | 1941 | 85 | 1,784 |
| FIELDBROOK CREEK | Pennsylvania | Poor | 1941 | 85 | 525 |
| SOUTH RUN CREEK | Pennsylvania | Fair | 1941 | 85 | 314 |
| SOUTH RUN CREEK | Pennsylvania | Poor | 1941 | 85 | 447 |
| WHITELOCK CREEK | Pennsylvania | Fair | 1941 | 85 | 741 |
| KREUTZ CREEK | Pennsylvania | Fair | 1941 | 85 | 2,577 |
| TRIB OF E BR CODORUS CR | Pennsylvania | Poor | 1941 | 85 | 2,695 |
| WILLIS RUN | Pennsylvania | Fair | 1941 | 85 | 10,700 |
| COPLAY CREEK | Pennsylvania | Fair | 1941 | 85 | 390 |
| NAYLORS RUN | Pennsylvania | Fair | 1941 | 85 | 5,000 |
| Reserve Basin | Pennsylvania | Fair | 1941 | 85 | 75 |
| ROCK CREEK | Pennsylvania | Fair | 1942 | 84 | 5,593 |
| N. BR. OF ROBINSON RUN | Pennsylvania | Poor | 1942 | 84 | 10,401 |
| LR 744 UNION RR THOMPSON | Pennsylvania | Fair | 1942 | 84 | 22,920 |
| BRANCH MILLERS RUN | Pennsylvania | Poor | 1942 | 84 | 3,268 |
| MAHONING CREEK | Pennsylvania | Fair | 1942 | 84 | 692 |
| PIPERS RUN | Pennsylvania | Fair | 1942 | 84 | 370 |
| SIX MILE RUN | Pennsylvania | Poor | 1942 | 84 | 275 |
| PINEY CREEK | Pennsylvania | Fair | 1942 | 84 | 3 |
| RYOT RUN | Pennsylvania | Poor | 1942 | 84 | 27 |
| LITTLE CACOOSING CREEK | Pennsylvania | Poor | 1942 | 84 | 3,682 |
| RIGGLES GAP RUN | Pennsylvania | Fair | 1942 | 84 | 2,010 |
| SUSQUEHANNA RIVER | Pennsylvania | Fair | 1942 | 84 | 5,490 |
| BRANCH DELAWARE RIVER | Pennsylvania | Fair | 1942 | 84 | 14,803 |
| CHURCHVILLE RSVR/3261-A1 | Pennsylvania | Fair | 1942 | 84 | 3,118 |
| MUDDY CREEK | Pennsylvania | Poor | 1942 | 84 | 10,376 |
| BIG RUN | Pennsylvania | Fair | 1942 | 84 | 9,078 |
| THORN CREEK | Pennsylvania | Fair | 1942 | 84 | 4,448 |
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.