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 |
|---|---|---|---|---|---|
| PERKIOMEN CREEK | Pennsylvania | Poor | 1898 | 128 | 464 |
| Abolished Conrail | Pennsylvania | Good | 1898 | 128 | 7,800 |
| Abolished Conrail | Pennsylvania | Fair | 1898 | 128 | 2,100 |
| Abandoned Conrail | Pennsylvania | Fair | 1898 | 128 | 3,300 |
| Abolished Conrail | Pennsylvania | Poor | 1898 | 128 | 3,500 |
| Abandoned Conrail | Pennsylvania | Fair | 1898 | 128 | 4,500 |
| PAINTERS RUN | Pennsylvania | Poor | 1899 | 127 | 5 |
| DRY RUN | Pennsylvania | Fair | 1899 | 127 | 150 |
| KETTLE CREEK | Pennsylvania | Fair | 1899 | 127 | 125 |
| WASHINGTON RUN | Pennsylvania | Fair | 1899 | 127 | 1,086 |
| PURSLEY CREEK | Pennsylvania | Fair | 1899 | 127 | 40 |
| TOOKANY CREEK | Pennsylvania | Fair | 1899 | 127 | 6,890 |
| Shermans Creek | Pennsylvania | Fair | 1899 | 127 | 212 |
| YELLOW BREECHES CREEK | Pennsylvania | Good | 1899 | 127 | 3,188 |
| Abandoned Conrail | Pennsylvania | Fair | 1899 | 127 | 5,800 |
| SAW MILL RUN | Pennsylvania | Fair | 1900 | 126 | 7,600 |
| LITTLE BULL CREEK | Pennsylvania | Poor | 1900 | 126 | 3,323 |
| BR.LITTLE PLUM CREEK | Pennsylvania | Fair | 1900 | 126 | 4,508 |
| MCLAUGHLIN RUN | Pennsylvania | Poor | 1900 | 126 | 3,740 |
| SAW MILL RUN | Pennsylvania | Fair | 1900 | 126 | 13,866 |
| BULL CREEK | Pennsylvania | Fair | 1900 | 126 | 602 |
| BIG SEWICKLEY CREEK | Pennsylvania | Fair | 1900 | 126 | 10 |
| CSX RR GLOSTER ST | Pennsylvania | Poor | 1900 | 126 | 3,000 |
| CSX RR BOUNDARY ST | Pennsylvania | Fair | 1900 | 126 | 8,722 |
| RIALTO STREET | Pennsylvania | Poor | 1900 | 126 | 1,650 |
| SAW MILL RUN CREEK | Pennsylvania | Poor | 1900 | 126 | 1,350 |
| CHARTIERS CREEK | Pennsylvania | Fair | 1900 | 126 | 1,642 |
| HEATHS RUN | Pennsylvania | Fair | 1900 | 126 | 2,889 |
| THOMPSON RUN CREEK | Pennsylvania | Poor | 1900 | 126 | 300 |
| DIRTY CAMP RUN | Pennsylvania | Poor | 1900 | 126 | 5,000 |
| BUFFALO & PITT RR | Pennsylvania | Poor | 1900 | 126 | 250 |
| CROWS RUN | Pennsylvania | Fair | 1900 | 126 | 26,289 |
| SERVICE CREEK | Pennsylvania | Poor | 1900 | 126 | 246 |
| BRUSH RUN CREEK | Pennsylvania | Poor | 1900 | 126 | 50 |
| COVE CREEK | Pennsylvania | Poor | 1900 | 126 | 25 |
| IRONSTONE CREEK | Pennsylvania | Poor | 1900 | 126 | 200 |
| SACONY CREEK | Pennsylvania | Poor | 1900 | 126 | 230 |
| TULPEHOCKEN CREEK | Pennsylvania | Poor | 1900 | 126 | 141 |
| TULPEHOCKEN CREEK | Pennsylvania | Poor | 1900 | 126 | 33 |
| LITTLE BEECH FLATS CREEK | Pennsylvania | Fair | 1900 | 126 | 350 |
| ALBA CREEK | Pennsylvania | Fair | 1900 | 126 | 245 |
| TRIB WEST BR TOMJACK CRK | Pennsylvania | Fair | 1900 | 126 | 2,064 |
| BUCKS CREEK | Pennsylvania | Fair | 1900 | 126 | 2,482 |
| TRIB TO MILL CREEK | Pennsylvania | Fair | 1900 | 126 | 166 |
| TINICUM CREEK | Pennsylvania | Fair | 1900 | 126 | 50 |
| RAPP CREEK | Pennsylvania | Fair | 1900 | 126 | 50 |
| TRIBUTARY PIDCOCK CREEK | Pennsylvania | Poor | 1900 | 126 | 375 |
| N BR SLIPPERY ROCK CREEK | Pennsylvania | Poor | 1900 | 126 | 50 |
| WALNUT RUN | Pennsylvania | Fair | 1900 | 126 | 6,561 |
| STONY CREEK RIVER | Pennsylvania | Fair | 1900 | 126 | 4,326 |
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.