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 |
|---|---|---|---|---|---|
| BARRIS CREEK | Pennsylvania | Good | 1941 | 85 | 1,315 |
| TWO MILE RUN | Pennsylvania | Fair | 1941 | 85 | 2,831 |
| TWO MILE RUN | Pennsylvania | Fair | 1941 | 85 | 3,160 |
| TWO MILE RUN | Pennsylvania | Fair | 1941 | 85 | 400 |
| DUNNING CREEK | Pennsylvania | Fair | 1941 | 85 | 623 |
| SHERMAN VALLEY RUN | Pennsylvania | Poor | 1941 | 85 | 82 |
| WILSON RUN | Pennsylvania | Fair | 1941 | 85 | 15 |
| ELK LICK CREEK | Pennsylvania | Fair | 1941 | 85 | 150 |
| WOLF CAMP RUN | Pennsylvania | Good | 1941 | 85 | 144 |
| MONOCACY CREEK | Pennsylvania | Fair | 1941 | 85 | 44,528 |
| LEAFS RUN | Pennsylvania | Fair | 1941 | 85 | 17,732 |
| MILL RACE | Pennsylvania | Poor | 1941 | 85 | 239 |
| SINK RUN | Pennsylvania | Good | 1941 | 85 | 1,891 |
| SUGAR CREEK | Pennsylvania | Fair | 1941 | 85 | 3,796 |
| PENDLETON CREEK TRIB. | Pennsylvania | Fair | 1941 | 85 | 362 |
| BRANCH OF PEDLETON CREEK | Pennsylvania | Fair | 1941 | 85 | 362 |
| TRIBUTARY SATTERLEE CRK | Pennsylvania | Fair | 1941 | 85 | 163 |
| LADDS CREEK | Pennsylvania | Fair | 1941 | 85 | 775 |
| MUD CREEK | Pennsylvania | Fair | 1941 | 85 | 72 |
| BUCKS CREEK | Pennsylvania | Poor | 1941 | 85 | 236 |
| PINE RUN | Pennsylvania | Fair | 1941 | 85 | 19,355 |
| HOUGHS CREEK / 3039-B6 | Pennsylvania | Fair | 1941 | 85 | 8,655 |
| LIKENS RUN | Pennsylvania | Good | 1941 | 85 | 9,304 |
| LITTLE BUFFALO RUN | Pennsylvania | Fair | 1941 | 85 | 789 |
| CHEST CREEK | Pennsylvania | Fair | 1941 | 85 | 1,268 |
| TR.TO BEAVER DAM RUN | Pennsylvania | Fair | 1941 | 85 | 412 |
| BURGOON RUN | Pennsylvania | Fair | 1941 | 85 | 210 |
| TR.LAUREL LICK RUN | Pennsylvania | Good | 1941 | 85 | 5,608 |
| PORTAGE CREEK | Pennsylvania | Poor | 1941 | 85 | 1,571 |
| LIMESTONE ROAD | Pennsylvania | Fair | 1941 | 85 | 12,271 |
| TROUT RUN | Pennsylvania | Fair | 1941 | 85 | 13,287 |
| OCTORARO CREEK | Pennsylvania | Fair | 1941 | 85 | 518 |
| EAST BR BRANDYWINE CREEK | Pennsylvania | Fair | 1941 | 85 | 3,954 |
| CULBERTSON RUN | Pennsylvania | Fair | 1941 | 85 | 1,154 |
| LEATHERWOOD CREEK | Pennsylvania | Good | 1941 | 85 | 605 |
| TOBY CREEK | Pennsylvania | Fair | 1941 | 85 | 320 |
| TRIB.TO BRIAR CREEK | Pennsylvania | Fair | 1941 | 85 | 2,061 |
| TRIB.TO BRIAR CREEK | Pennsylvania | Fair | 1941 | 85 | 1,632 |
| LICK RUN | Pennsylvania | Good | 1941 | 85 | 648 |
| OVER LITTLE FISHING CR. | Pennsylvania | Fair | 1941 | 85 | 569 |
| LITTLE FISHING CREEK | Pennsylvania | Fair | 1941 | 85 | 122 |
| UNNAMED TRIB ROARING CR | Pennsylvania | Fair | 1941 | 85 | 50 |
| OVER OIL CREEK | Pennsylvania | Fair | 1941 | 85 | 551 |
| OVER MOSEY RUN | Pennsylvania | Fair | 1941 | 85 | 529 |
| OVER CROOKED CREEK | Pennsylvania | Poor | 1941 | 85 | 500 |
| HOGESTOWN RUN | Pennsylvania | Fair | 1941 | 85 | 9,352 |
| WICONISCO CREEK | Pennsylvania | Fair | 1941 | 85 | 3,491 |
| Swatara Creek | Pennsylvania | Good | 1941 | 85 | 6,614 |
| CLARKS CREEK | Pennsylvania | Fair | 1941 | 85 | 853 |
| CONLEY CREEK | Pennsylvania | Fair | 1941 | 85 | 212 |
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.