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 |
|---|---|---|---|---|---|
| Drainage Ditch | Pennsylvania | Fair | 1949 | 77 | 17,021 |
| INDIAN CREEK | Pennsylvania | Fair | 1949 | 77 | 500 |
| INDIAN ROCK DAM | Pennsylvania | Fair | 1949 | 77 | 400 |
| LATIMORE CREEK | Pennsylvania | Fair | 1950 | 76 | 454 |
| TRIB OF SWIFT RUN | Pennsylvania | Fair | 1950 | 76 | 50 |
| SAW MILL RUN | Pennsylvania | Fair | 1950 | 76 | 3,612 |
| SR 0376 EB WB | Pennsylvania | Fair | 1950 | 76 | 24,322 |
| SR 0376 EB WB | Pennsylvania | Fair | 1950 | 76 | 18,460 |
| SANDY CREEK | Pennsylvania | Fair | 1950 | 76 | 14,750 |
| CROOKED RUN | Pennsylvania | Fair | 1950 | 76 | 21,021 |
| SR50 WLE RR CHARTIERS CK | Pennsylvania | Fair | 1950 | 76 | 99,372 |
| SR 0022 | Pennsylvania | Fair | 1950 | 76 | 9,690 |
| PIERSONS RUN | Pennsylvania | Good | 1950 | 76 | 19,380 |
| ABERS CREEK | Pennsylvania | Fair | 1950 | 76 | 13,769 |
| HUMMS RUN | Pennsylvania | Fair | 1950 | 76 | 13,769 |
| HUMMS RUN | Pennsylvania | Fair | 1950 | 76 | 13,769 |
| COMMERCIAL ST. & NINE MI | Pennsylvania | Fair | 1950 | 76 | 65,232 |
| LR 763 906+78 | Pennsylvania | Fair | 1950 | 76 | 230 |
| SR 8012-RAMP A | Pennsylvania | Fair | 1950 | 76 | 54,792 |
| LR 763-RAMP G | Pennsylvania | Fair | 1950 | 76 | 54,792 |
| BEULAH ROAD | Pennsylvania | Fair | 1950 | 76 | 69,636 |
| SR 2110 SH | Pennsylvania | Fair | 1950 | 76 | 33,644 |
| CLIFF | Pennsylvania | Fair | 1950 | 76 | 30,717 |
| CLIFF | Pennsylvania | Fair | 1950 | 76 | 30,717 |
| SR 0376 EB WB | Pennsylvania | Fair | 1950 | 76 | 4,140 |
| LITTLE PLUM CREEK | Pennsylvania | Fair | 1950 | 76 | 4,369 |
| GEORGES RUN | Pennsylvania | Fair | 1950 | 76 | 13,168 |
| MONTOUR RUN | Pennsylvania | Poor | 1950 | 76 | 3,416 |
| LOWRIES RUN | Pennsylvania | Fair | 1950 | 76 | 3,099 |
| SR 0008 LR72 | Pennsylvania | Fair | 1950 | 76 | 8,559 |
| CN RR | Pennsylvania | Fair | 1950 | 76 | 38,689 |
| GIRTYS RUN | Pennsylvania | Fair | 1950 | 76 | 400 |
| HILLSIDE | Pennsylvania | Fair | 1950 | 76 | 180 |
| SYCAMORE RUN | Pennsylvania | Fair | 1950 | 76 | 5,000 |
| SYCAMORE RUN | Pennsylvania | Fair | 1950 | 76 | 3,974 |
| SYCAMORE RUN | Pennsylvania | Fair | 1950 | 76 | 1,041 |
| TRIB TO WALLACE RUN | Pennsylvania | Fair | 1950 | 76 | 10,068 |
| DILWORTH RUN | Pennsylvania | Fair | 1950 | 76 | 9,967 |
| MCCAUGHTRY RUN | Pennsylvania | Good | 1950 | 76 | 967 |
| LOGTOWN RUN | Pennsylvania | Fair | 1950 | 76 | 2,876 |
| SHERMAN VALLEY RUN | Pennsylvania | Fair | 1950 | 76 | 82 |
| SHERMAN VALLEY RUN | Pennsylvania | Fair | 1950 | 76 | 82 |
| RYOT RUN | Pennsylvania | Poor | 1950 | 76 | - |
| GEORGES CREEK | Pennsylvania | Poor | 1950 | 76 | 154 |
| FURNACE CREEK | Pennsylvania | Fair | 1950 | 76 | 8,798 |
| MILL CREEK | Pennsylvania | Fair | 1950 | 76 | 36,172 |
| TRIB. LITTLE SWATARA CRK | Pennsylvania | Fair | 1950 | 76 | 39,332 |
| SIX PENNY CREEK | Pennsylvania | Fair | 1950 | 76 | 5,670 |
| SACONY CREEK | Pennsylvania | Fair | 1950 | 76 | 316 |
| LITTLE SWATARA CREEK | Pennsylvania | Fair | 1950 | 76 | 863 |
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.