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 |
|---|---|---|---|---|---|
| COOKS RUN | Pennsylvania | Poor | 1926 | 100 | 9,221 |
| BRANCH TINICUM CREEK | Pennsylvania | Poor | 1926 | 100 | 100 |
| DELAWARE River | Pennsylvania | Fair | 1926 | 100 | 4,500 |
| PENNSYLVANIA CANAL | Pennsylvania | Fair | 1926 | 100 | 4,600 |
| SLIPPERY ROCK CREEK | Pennsylvania | Fair | 1926 | 100 | 100 |
| GLADE RUN | Pennsylvania | Fair | 1926 | 100 | 300 |
| LITTLE CONEMAUGH RIVER | Pennsylvania | Good | 1926 | 100 | 1,359 |
| MAUCH CHUNK CREEK | Pennsylvania | Fair | 1926 | 100 | 4,728 |
| SPARROW RUN | Pennsylvania | Fair | 1926 | 100 | 1,640 |
| BUCK RUN | Pennsylvania | Poor | 1926 | 100 | 2,896 |
| STONEY RUN CREEK | Pennsylvania | Fair | 1926 | 100 | 1,122 |
| EAST BRANCH RED CLAY CR. | Pennsylvania | Poor | 1926 | 100 | 1,777 |
| W. BR. BRANDYWINE CREEK | Pennsylvania | Poor | 1926 | 100 | 1,897 |
| KRATZER RUN | Pennsylvania | Fair | 1926 | 100 | 2,084 |
| KRATZER RUN | Pennsylvania | Fair | 1926 | 100 | 2,084 |
| OVER FISHING CREEK | Pennsylvania | Fair | 1926 | 100 | 4,430 |
| HEMLOCK CREEK | Pennsylvania | Poor | 1926 | 100 | 572 |
| DOUBLING GAP CREEK | Pennsylvania | Fair | 1926 | 100 | 620 |
| CRUM CREEK | Pennsylvania | Poor | 1926 | 100 | 18,095 |
| BRANCH MARCUS HOOK CREEK | Pennsylvania | Poor | 1926 | 100 | 3,190 |
| RIDLEY CREEK | Pennsylvania | Fair | 1926 | 100 | 3,575 |
| RASLER RUN | Pennsylvania | Fair | 1926 | 100 | 4,044 |
| COVE RUN | Pennsylvania | Fair | 1926 | 100 | 700 |
| OVER PRATHER RUN | Pennsylvania | Poor | 1926 | 100 | 1,581 |
| Trib Conococheague Creek | Pennsylvania | Good | 1926 | 100 | 5,121 |
| N. BR WILSON RUN | Pennsylvania | Fair | 1926 | 100 | 1,684 |
| S. BR. LT AUGHWICK CREEK | Pennsylvania | Fair | 1926 | 100 | 3,002 |
| GLADE RUN | Pennsylvania | Poor | 1926 | 100 | 518 |
| STEWART RUN | Pennsylvania | Poor | 1926 | 100 | 382 |
| SMITH CREEK | Pennsylvania | Poor | 1926 | 100 | 30 |
| ROBERTS RUN | Pennsylvania | Poor | 1926 | 100 | 100 |
| STANDING STONE CREEK | Pennsylvania | Fair | 1926 | 100 | 68 |
| TROUT RUN | Pennsylvania | Fair | 1926 | 100 | 1,585 |
| SOLDIER RUN | Pennsylvania | Fair | 1926 | 100 | 4,834 |
| LOST CREEK | Pennsylvania | Fair | 1926 | 100 | 100 |
| Pequea Creek | Pennsylvania | Poor | 1926 | 100 | 5,797 |
| CHIQUES CREEK | Pennsylvania | Poor | 1926 | 100 | 5,746 |
| AIRE RUN | Pennsylvania | Poor | 1926 | 100 | 1,000 |
| TRIB. ONTELAUNEE CREEK | Pennsylvania | Fair | 1926 | 100 | 2,115 |
| TRIB. ONTELAUNEE CREEK | Pennsylvania | Fair | 1926 | 100 | 2,062 |
| TRIB. ONTELAUNEE CREEK | Pennsylvania | Fair | 1926 | 100 | 2,742 |
| BR. ONTELAUNEE CREEK | Pennsylvania | Fair | 1926 | 100 | 3,006 |
| FELLS CREEK | Pennsylvania | Fair | 1926 | 100 | 15,708 |
| SUSQUEHANNA RIVER | Pennsylvania | Poor | 1926 | 100 | 14,585 |
| OVER RAMSEY RUN | Pennsylvania | Fair | 1926 | 100 | 1,516 |
| OVER PINE RUN | Pennsylvania | Good | 1926 | 100 | 355 |
| MOSQUITO CREEK | Pennsylvania | Poor | 1926 | 100 | 250 |
| LONG HOLLOW RUN | Pennsylvania | Fair | 1926 | 100 | 150 |
| BRANCH MACOBY CR/2805B5 | Pennsylvania | Fair | 1926 | 100 | 1,450 |
| WISSAHICKON CREEK | Pennsylvania | Poor | 1926 | 100 | 13,301 |
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.