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 |
|---|---|---|---|---|---|
| JONES CREEK | Pennsylvania | Fair | 1940 | 86 | 7,034 |
| BEAVER DAM CREEK | Pennsylvania | Fair | 1940 | 86 | 276 |
| BEAVER DAM CREEK | Pennsylvania | Good | 1940 | 86 | 276 |
| MILL CREEK | Pennsylvania | Fair | 1940 | 86 | 4,270 |
| MILL CREEK | Pennsylvania | Good | 1940 | 86 | 4,422 |
| MILL CREEK | Pennsylvania | Fair | 1940 | 86 | 2,429 |
| WILSON RUN | Pennsylvania | Fair | 1940 | 86 | 570 |
| SEWICKLEY CREEK | Pennsylvania | Fair | 1940 | 86 | 100 |
| PUCKETA CREEK | Pennsylvania | Poor | 1940 | 86 | 100 |
| TOMS RUN | Pennsylvania | Poor | 1940 | 86 | 126 |
| TRIB W BR CODORUS CREEK | Pennsylvania | Poor | 1940 | 86 | 3,216 |
| INNERS CREEK | Pennsylvania | Fair | 1940 | 86 | 1,608 |
| DOGWOOD RUN | Pennsylvania | Fair | 1940 | 86 | 250 |
| KREUTZ CREEK | Pennsylvania | Fair | 1940 | 86 | 207 |
| TRIBUTARY CODORUS CREEK | Pennsylvania | Poor | 1940 | 86 | 15 |
| KREUTZ CREEK | Pennsylvania | Fair | 1940 | 86 | 50 |
| BLOCK HOUSE RUN | Pennsylvania | Poor | 1940 | 86 | 400 |
| RAMP N TO MON WHARF | Pennsylvania | Good | 1940 | 86 | 3,428 |
| LEHIGH CANAL | Pennsylvania | Poor | 1940 | 86 | 200 |
| RACCOON CREEK | Pennsylvania | Fair | 1940 | 86 | 50 |
| Crooked Run | Pennsylvania | Fair | 1940 | 86 | 200 |
| N/A | Pennsylvania | Fair | 1940 | 86 | 4,324 |
| N/A | Pennsylvania | Fair | 1940 | 86 | 25,731 |
| SR 0008 | Pennsylvania | Fair | 1940 | 86 | 49,653 |
| LITTLE SEWICKLEY CREEK | Pennsylvania | Poor | 1940 | 86 | 39 |
| Ruff Creek | Pennsylvania | Good | 1940 | 86 | 47 |
| Crooked Run | Pennsylvania | Fair | 1940 | 86 | 50 |
| Taylor Run | Pennsylvania | Fair | 1940 | 86 | 1,000 |
| SCOT RUN | Pennsylvania | Poor | 1940 | 86 | 100 |
| SINKING CREEK | Pennsylvania | Poor | 1940 | 86 | 50 |
| E. BRANCH TIONESTA CRK. | Pennsylvania | Fair | 1940 | 86 | 10 |
| SAND HILL CREEK | Pennsylvania | Fair | 1940 | 86 | 4,658 |
| ADAMS CREEK | Pennsylvania | Fair | 1940 | 86 | 5,475 |
| PLUM CREEK | Pennsylvania | Fair | 1941 | 85 | 3,394 |
| LITTLE MARSH CREEK | Pennsylvania | Good | 1941 | 85 | 266 |
| FLAT RUN | Pennsylvania | Fair | 1941 | 85 | 200 |
| SAW MILL RUN | Pennsylvania | Fair | 1941 | 85 | 40,495 |
| KILBUCK RUN | Pennsylvania | Fair | 1941 | 85 | 11,649 |
| LR 395 & CHALFONT RUN | Pennsylvania | Fair | 1941 | 85 | 22,920 |
| LITTLE PLUM CREEK | Pennsylvania | Fair | 1941 | 85 | 4,349 |
| POTATO GARDEN RUN | Pennsylvania | Fair | 1941 | 85 | 1,064 |
| LOWRIES RUN | Pennsylvania | Fair | 1941 | 85 | 2,901 |
| LITTLE PINE CREEK | Pennsylvania | Fair | 1941 | 85 | 3,117 |
| MCLAUGHLIN RUN | Pennsylvania | Fair | 1941 | 85 | 17,000 |
| LEWIS RUN | Pennsylvania | Fair | 1941 | 85 | 4,081 |
| LONG RUN | Pennsylvania | Fair | 1941 | 85 | 691 |
| BR OF PINE CREEK | Pennsylvania | Fair | 1941 | 85 | 892 |
| MILL RUN | Pennsylvania | Poor | 1941 | 85 | 189 |
| TRIB TO BUFFALO CREEK | Pennsylvania | Fair | 1941 | 85 | 171 |
| MCCAUTRY RUN | Pennsylvania | Fair | 1941 | 85 | 3,308 |
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.