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 |
|---|---|---|---|---|---|
| SEPTA (CHESTNUT HILL) | Pennsylvania | Fair | 1894 | 132 | 4,709 |
| SEPTA | Pennsylvania | Poor | 1894 | 132 | 5,000 |
| Shurs Lane | Pennsylvania | Good | 1894 | 132 | 2,500 |
| BULL CREEK | Pennsylvania | Fair | 1895 | 131 | 9,826 |
| EAST BR.PERKIOMEN CREEK | Pennsylvania | Good | 1895 | 131 | 50 |
| SEPTA | Pennsylvania | Poor | 1895 | 131 | 4,918 |
| SO BR TUNKHANNOCK CREEK | Pennsylvania | Poor | 1895 | 131 | 30 |
| OVER WOLF CREEK | Pennsylvania | Fair | 1895 | 131 | 153 |
| Dugan Road | Pennsylvania | Good | 1895 | 131 | 8 |
| BENS CREEK | Pennsylvania | Fair | 1895 | 131 | 50 |
| CEDAR RUN | Pennsylvania | Fair | 1895 | 131 | 22 |
| LITTLE SANDY CREEK | Pennsylvania | Poor | 1895 | 131 | 50 |
| N BRANCH CALKINS CREEK | Pennsylvania | Poor | 1895 | 131 | 50 |
| EQUINUNK CREEK | Pennsylvania | Poor | 1895 | 131 | 60 |
| READING RAILROAD;ROAD | Pennsylvania | Good | 1895 | 131 | 27,908 |
| Schuylkill River | Pennsylvania | Poor | 1895 | 131 | 18,650 |
| CSX RAILROAD BOUNDARY ST | Pennsylvania | Fair | 1896 | 130 | 14,000 |
| PANTH HOLLOW UNKNOWN STR | Pennsylvania | Fair | 1896 | 130 | 13,500 |
| LITTLE FISHING CREEK | Pennsylvania | Fair | 1896 | 130 | 100 |
| OVER MILL RUN | Pennsylvania | Fair | 1896 | 130 | 8,153 |
| OVER OIL CREEK EAST BR. | Pennsylvania | Fair | 1896 | 130 | 250 |
| OVER WOODCOCK CREEK | Pennsylvania | Fair | 1896 | 130 | 250 |
| OVER CONNEAUT CREEK | Pennsylvania | Fair | 1896 | 130 | 250 |
| CONODOGUINET CREEK | Pennsylvania | Poor | 1896 | 130 | 439 |
| SHADE CREEK | Pennsylvania | Fair | 1896 | 130 | 50 |
| AMTRAK | Pennsylvania | Good | 1896 | 130 | 507 |
| FREYS RUN | Pennsylvania | Poor | 1896 | 130 | 1,699 |
| DELAWARE RIVER | Pennsylvania | Fair | 1896 | 130 | 18,700 |
| WARRIOR RUN | Pennsylvania | Fair | 1896 | 130 | 50 |
| BERMUDIAN CREEK | Pennsylvania | Poor | 1896 | 130 | 101 |
| PENNYPACK CREEK | Pennsylvania | Fair | 1896 | 130 | 10,504 |
| CSX RR TUNNELS | Pennsylvania | Poor | 1896 | 130 | 37,818 |
| Chamounix Drive | Pennsylvania | Fair | 1896 | 130 | 17,999 |
| OVER CONNEAUT OUTLET | Pennsylvania | Poor | 1897 | 129 | 250 |
| Chestnut Run | Pennsylvania | Poor | 1897 | 129 | 28 |
| SCHWABEN CREEK | Pennsylvania | Fair | 1897 | 129 | 40 |
| SCHWABEN CREEK | Pennsylvania | Poor | 1897 | 129 | 25 |
| LOYALSOCK CREEK | Pennsylvania | Poor | 1897 | 129 | 15 |
| OVER PITHOLE CREEK | Pennsylvania | Fair | 1897 | 129 | 93 |
| PITHOLE CREEK | Pennsylvania | Fair | 1897 | 129 | 50 |
| EQUINUNK CREEK | Pennsylvania | Fair | 1897 | 129 | 68 |
| SKL RIV KELLY W RIV STDR | Pennsylvania | Fair | 1897 | 129 | 12,580 |
| LITTLE JUNIATA RIVER | Pennsylvania | Poor | 1898 | 128 | 27 |
| LITTLE JUNIATA RIVER | Pennsylvania | Fair | 1898 | 128 | 3,406 |
| SOUTH CREEK | Pennsylvania | Fair | 1898 | 128 | 50 |
| YELLOW BREECHES CREEK | Pennsylvania | Poor | 1898 | 128 | 145 |
| CHESTER CREEK / 3694-J10 | Pennsylvania | Poor | 1898 | 128 | 9,019 |
| LITTLE SANDY CREEK | Pennsylvania | Fair | 1898 | 128 | 100 |
| CONESTOGA RIVER | Pennsylvania | Fair | 1898 | 128 | 50 |
| BLOCKHOUSE CREEK | Pennsylvania | Fair | 1898 | 128 | 100 |
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.