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 |
|---|---|---|---|---|---|
| LITTLE CHEST CREEK | Pennsylvania | Fair | 1900 | 126 | 3,081 |
| CHESTER VALLEY TRAIL | Pennsylvania | Fair | 1900 | 126 | 720 |
| KNIGHTS RUN | Pennsylvania | Poor | 1900 | 126 | 250 |
| BENNETT BRANCH | Pennsylvania | Poor | 1900 | 126 | 148 |
| MOUNTAIN RUN | Pennsylvania | Fair | 1900 | 126 | 45 |
| OVER LITTLE SUGAR BRANCH | Pennsylvania | Poor | 1900 | 126 | 50 |
| OVER PINE CREEK | Pennsylvania | Poor | 1900 | 126 | 250 |
| OVER FRENCH CREEK | Pennsylvania | Poor | 1900 | 126 | 250 |
| MAHANTANGO CREEK | Pennsylvania | Poor | 1900 | 126 | — |
| PAXTON CREEK | Pennsylvania | Poor | 1900 | 126 | 8,000 |
| COBBS CR;SEPTA/ 3589-A6 | Pennsylvania | Fair | 1900 | 126 | 24,154 |
| STONY CREEK | Pennsylvania | Fair | 1900 | 126 | 420 |
| EAST BRANCH SPRING CREEK | Pennsylvania | Fair | 1900 | 126 | 69 |
| CONNEAUTTEE CREEK | Pennsylvania | Poor | 1900 | 126 | 31 |
| DICKERSON RUN | Pennsylvania | Fair | 1900 | 126 | 444 |
| ABANDONED CSXT R/R | Pennsylvania | Poor | 1900 | 126 | 6,661 |
| COAL LICK RUN | Pennsylvania | Fair | 1900 | 126 | 2,100 |
| DENNIS CREEK | Pennsylvania | Fair | 1900 | 126 | 1,684 |
| HARGUS CREEK | Pennsylvania | Fair | 1900 | 126 | 30 |
| WHITELEY CREEK | Pennsylvania | Fair | 1900 | 126 | 20 |
| RUFF CREEK | Pennsylvania | Poor | 1900 | 126 | 25 |
| NARROWS CREEK | Pennsylvania | Fair | 1900 | 126 | 281 |
| SPRUCE RUN | Pennsylvania | Good | 1900 | 126 | 106 |
| SHAVER CREEK | Pennsylvania | Fair | 1900 | 126 | 79 |
| LITTLE TROUGH CREEK | Pennsylvania | Fair | 1900 | 126 | 55 |
| LEGGETTS CREEK | Pennsylvania | Poor | 1900 | 126 | 10,771 |
| CHIQUES CREEK | Pennsylvania | Fair | 1900 | 126 | 820 |
| BIG RUN | Pennsylvania | Poor | 1900 | 126 | 25 |
| TULPEHOCKEN CREEK | Pennsylvania | Poor | 1900 | 126 | 200 |
| QUITTAPAHILLA CREEK | Pennsylvania | Poor | 1900 | 126 | 375 |
| TULPEHOCKEN CREEK | Pennsylvania | Fair | 1900 | 126 | 200 |
| WAPWALLOPEN CREEK | Pennsylvania | Poor | 1900 | 126 | 20 |
| LYCOMING CREEK | Pennsylvania | Fair | 1900 | 126 | 75 |
| GREGS RUN | Pennsylvania | Poor | 1900 | 126 | 55 |
| KISHACOQUILLAS CREEK | Pennsylvania | Poor | 1900 | 126 | 80 |
| TUNKHANNOCK CK | Pennsylvania | Poor | 1900 | 126 | 20 |
| SAW MILL RUN | Pennsylvania | Fair | 1900 | 126 | 5,600 |
| SAW MILL RUN | Pennsylvania | Fair | 1900 | 126 | 15,408 |
| DELAWARE CANAL DIVERSION | Pennsylvania | Fair | 1900 | 126 | 60 |
| Glade Run | Pennsylvania | Good | 1900 | 126 | 50 |
| LITTLE SHAMOKIN CREEK | Pennsylvania | Fair | 1900 | 126 | 75 |
| BIG BUFFALO CREEK | Pennsylvania | Fair | 1900 | 126 | 25 |
| DELAWARE RIVER | Pennsylvania | Fair | 1900 | 126 | 4,629 |
| SHENANDOAH CREEK | Pennsylvania | Poor | 1900 | 126 | 599 |
| BUFFALO CREEK | Pennsylvania | Poor | 1900 | 126 | 2,013 |
| BENS CREEK | Pennsylvania | Fair | 1900 | 126 | 150 |
| CASSELMAN RIVER | Pennsylvania | Fair | 1900 | 126 | 50 |
| LAUREL HILL CREEK | Pennsylvania | Poor | 1900 | 126 | 50 |
| ROARING FORK | Pennsylvania | Good | 1900 | 126 | 50 |
| BEAVER DAM CREEK | Pennsylvania | Fair | 1900 | 126 | 150 |
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.