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 |
|---|---|---|---|---|---|
| CLEARFIELD CREEK | Pennsylvania | Good | 1940 | 86 | 1,021 |
| MCKINNON BRANCH | Pennsylvania | Poor | 1940 | 86 | 25 |
| BLACK CREEK | Pennsylvania | Poor | 1940 | 86 | 512 |
| SPRING CREEK | Pennsylvania | Fair | 1940 | 86 | 16,060 |
| ELK CREEK | Pennsylvania | Poor | 1940 | 86 | 20 |
| FRENCH CREEK | Pennsylvania | Fair | 1940 | 86 | 18,545 |
| WEST BR. RED CLAY CREEK | Pennsylvania | Fair | 1940 | 86 | 6,163 |
| EAST BR.RED CLAY CREEK | Pennsylvania | Fair | 1940 | 86 | 8,686 |
| BIRCH RUN | Pennsylvania | Fair | 1940 | 86 | 920 |
| WHITE CLAY CREEK | Pennsylvania | Fair | 1940 | 86 | 200 |
| BUCK RUN | Pennsylvania | Poor | 1940 | 86 | 2,800 |
| VALLEY CREEK | Pennsylvania | Fair | 1940 | 86 | 150 |
| KNIGHT RUN | Pennsylvania | Fair | 1940 | 86 | 460 |
| PAINT CREEK | Pennsylvania | Fair | 1940 | 86 | 8,647 |
| TRIB TO PINE CREEK | Pennsylvania | Fair | 1940 | 86 | 272 |
| PINEY CREEK | Pennsylvania | Fair | 1940 | 86 | 50 |
| TOWN RUN | Pennsylvania | Poor | 1940 | 86 | 50 |
| MOSHANNON CREEK | Pennsylvania | Poor | 1940 | 86 | 2,492 |
| KRATZER RUN | Pennsylvania | Fair | 1940 | 86 | 50 |
| CHERRY RUN | Pennsylvania | Fair | 1940 | 86 | 690 |
| LOWER THREE RUNS | Pennsylvania | Fair | 1940 | 86 | 75 |
| OVER PINE CREEK | Pennsylvania | Poor | 1940 | 86 | 185 |
| TRIB ROARING CREEK | Pennsylvania | Fair | 1940 | 86 | 109 |
| SO. BR. ROARING CREEK | Pennsylvania | Fair | 1940 | 86 | 120 |
| TEN MILE RUN | Pennsylvania | Fair | 1940 | 86 | 120 |
| OVER MONTOUR RUN | Pennsylvania | Fair | 1940 | 86 | 70 |
| OVER OIL CREEK | Pennsylvania | Fair | 1940 | 86 | 4,638 |
| OVER LITTLE FEDERAL RUN | Pennsylvania | Poor | 1940 | 86 | 414 |
| OVER PINE CREEK | Pennsylvania | Good | 1940 | 86 | 1,732 |
| LITTLE SANDY CREEK | Pennsylvania | Fair | 1940 | 86 | 398 |
| OVER PADAN CREEK TRIB | Pennsylvania | Fair | 1940 | 86 | 372 |
| OVER CONNEAUT CREEK E BR | Pennsylvania | Fair | 1940 | 86 | 445 |
| OVER STONE RUN | Pennsylvania | Fair | 1940 | 86 | 250 |
| OVER PADEN CREEK | Pennsylvania | Poor | 1940 | 86 | 250 |
| BURDS RUN | Pennsylvania | Poor | 1940 | 86 | 6,688 |
| PAXTON RUN | Pennsylvania | Fair | 1940 | 86 | 50 |
| DOUBLING GAP CREEK | Pennsylvania | Poor | 1940 | 86 | 200 |
| LETORT SPRING RUN | Pennsylvania | Fair | 1940 | 86 | 225 |
| MANADA CREEK | Pennsylvania | Fair | 1940 | 86 | 1,321 |
| Norfolk Southern RR | Pennsylvania | Poor | 1940 | 86 | 2,176 |
| PAXTON CREEK | Pennsylvania | Fair | 1940 | 86 | 26,315 |
| PAXTON CREEK | Pennsylvania | Poor | 1940 | 86 | 900 |
| PAXTON CREEK | Pennsylvania | Poor | 1940 | 86 | 200 |
| GREEN CREEK | Pennsylvania | Fair | 1940 | 86 | 2,079 |
| SEPTA HIGH SPEED LINE | Pennsylvania | Fair | 1940 | 86 | 250 |
| SEPTA HIGH SPEED LINE | Pennsylvania | Fair | 1940 | 86 | 250 |
| DENTS RUN | Pennsylvania | Good | 1940 | 86 | 483 |
| BRANDY CREEK | Pennsylvania | Fair | 1940 | 86 | 403 |
| JOHNSON RUN | Pennsylvania | Poor | 1940 | 86 | 25 |
| CLINE RUN | Pennsylvania | Poor | 1940 | 86 | 300 |
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.