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 |
|---|---|---|---|---|---|
| GIRTYS RUN | Pennsylvania | Fair | 1932 | 94 | 12,385 |
| SAW MILL RUN | Pennsylvania | Fair | 1932 | 94 | 15,683 |
| CORNPLANTER RUN | Pennsylvania | Fair | 1932 | 94 | 795 |
| TRAVERSE CREEK | Pennsylvania | Fair | 1932 | 94 | 1,312 |
| RACCOON CREEK | Pennsylvania | Poor | 1932 | 94 | 6,162 |
| BRUSH RUN | Pennsylvania | Fair | 1932 | 94 | 1,904 |
| KOON LAKE | Pennsylvania | Poor | 1932 | 94 | 159 |
| BEAVERS RUN | Pennsylvania | Poor | 1932 | 94 | 50 |
| PINE CREEK | Pennsylvania | Fair | 1932 | 94 | 1,829 |
| LITTLE NORTHKILL CREEK | Pennsylvania | Fair | 1932 | 94 | 11,432 |
| TRIB.LITTLE NORTHKILL CR | Pennsylvania | Fair | 1932 | 94 | 11,432 |
| MAIDEN CREEK | Pennsylvania | Poor | 1932 | 94 | 430 |
| MONOCACY CREEK | Pennsylvania | Good | 1932 | 94 | 3,625 |
| NORFOLK SOUTHERN RR | Pennsylvania | Poor | 1932 | 94 | 144 |
| TRIB.TO MILL CREEK | Pennsylvania | Fair | 1932 | 94 | 3,704 |
| TRIB.TO MILL CREEK | Pennsylvania | Poor | 1932 | 94 | 3,704 |
| MAIDEN CREEK | Pennsylvania | Poor | 1932 | 94 | 249 |
| CONESTOGA CREEK | Pennsylvania | Fair | 1932 | 94 | 980 |
| LEBANON VAL. BR. NORFOLK | Pennsylvania | Poor | 1932 | 94 | 2,000 |
| WOLFE RUN | Pennsylvania | Fair | 1932 | 94 | 2,284 |
| MILL CREEK | Pennsylvania | Fair | 1932 | 94 | 2,284 |
| SCH.R. 422 NSRC RIV.RD. | Pennsylvania | Fair | 1932 | 94 | 13,728 |
| SUGAR RUN | Pennsylvania | Fair | 1932 | 94 | 1,533 |
| GLENWHITE RUN | Pennsylvania | Fair | 1932 | 94 | 1,664 |
| TRIB NO BR TOWANDA CRK | Pennsylvania | Fair | 1932 | 94 | 542 |
| TRIB NO BR TOWANDA CREEK | Pennsylvania | Fair | 1932 | 94 | 542 |
| BUCK CREEK | Pennsylvania | Poor | 1932 | 94 | 3,958 |
| TINICUM CREEK | Pennsylvania | Fair | 1932 | 94 | 2,382 |
| DELAWARE CANAL | Pennsylvania | Good | 1932 | 94 | 2,382 |
| DELAWARE CANAL | Pennsylvania | Good | 1932 | 94 | 2,256 |
| DELAWARE CANAL/3151-F2 | Pennsylvania | Fair | 1932 | 94 | 3,837 |
| MILL CREEK | Pennsylvania | Poor | 1932 | 94 | 15,720 |
| NESHAMINY CREEK | Pennsylvania | Fair | 1932 | 94 | 10,789 |
| PENNSYLVA CANAL/ 3038-K4 | Pennsylvania | Fair | 1932 | 94 | 5,443 |
| TOHICKON CREEK | Pennsylvania | Poor | 1932 | 94 | 595 |
| N.E.BR PERKIOMEN CREEK | Pennsylvania | Fair | 1932 | 94 | 3,553 |
| NEWTOWN CREEK / 3149-K4 | Pennsylvania | Fair | 1932 | 94 | 7,209 |
| CUTTALOSSA CREEK | Pennsylvania | Fair | 1932 | 94 | 50 |
| CUTTALOSSA CREEK | Pennsylvania | Fair | 1932 | 94 | 50 |
| TOHICKON CREEK | Pennsylvania | Poor | 1932 | 94 | 200 |
| TINICUM CREEK | Pennsylvania | Poor | 1932 | 94 | 70 |
| SOUTH BRANCH BEAR CREEK | Pennsylvania | Fair | 1932 | 94 | 226 |
| MUD RUN | Pennsylvania | Poor | 1932 | 94 | 5,877 |
| HUNTERS CREEK | Pennsylvania | Fair | 1932 | 94 | 750 |
| MOSHANNON CREEK | Pennsylvania | Fair | 1932 | 94 | 2,122 |
| SLAB CABIN RUN | Pennsylvania | Fair | 1932 | 94 | 20,393 |
| GALBRAITH GAP RUN | Pennsylvania | Good | 1932 | 94 | 65 |
| GALBRAITH GAP RUN | Pennsylvania | Good | 1932 | 94 | 50 |
| DOE RUN | Pennsylvania | Poor | 1932 | 94 | 4,881 |
| EAST PENN RAILROAD | Pennsylvania | Fair | 1932 | 94 | 7,233 |
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.