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 |
|---|---|---|---|---|---|
| SCHUYLKILL RIVER | Pennsylvania | Poor | 1925 | 101 | 135 |
| GOODSPRING CREEK | Pennsylvania | Poor | 1925 | 101 | 500 |
| ULSH GAP RUN | Pennsylvania | Poor | 1925 | 101 | 50 |
| WILLS CREEK | Pennsylvania | Poor | 1925 | 101 | 50 |
| OVER MARSH CREEK | Pennsylvania | Fair | 1925 | 101 | 2,670 |
| BIRCH CREEK | Pennsylvania | Fair | 1925 | 101 | 50 |
| N. BR. MEHOOPANY CREEK | Pennsylvania | Poor | 1925 | 101 | 50 |
| KINGS CREEK | Pennsylvania | Poor | 1925 | 101 | 50 |
| CANAWACTA CREEK | Pennsylvania | Poor | 1925 | 101 | 2,079 |
| ELK RUN WEST | Pennsylvania | Fair | 1925 | 101 | 10 |
| Whitethorn Run | Pennsylvania | Fair | 1925 | 101 | 260 |
| SPRUCE RUN | Pennsylvania | Poor | 1925 | 101 | 54 |
| E. BR. WOLF CREEK | Pennsylvania | Fair | 1925 | 101 | 50 |
| TRIB TO DELAWARE RIVER | Pennsylvania | Poor | 1925 | 101 | 2,425 |
| NORTH BR CALKINS CREEK | Pennsylvania | Fair | 1925 | 101 | 193 |
| TURTLE CREEK | Pennsylvania | Fair | 1925 | 101 | 5,838 |
| Welty Run | Pennsylvania | Poor | 1925 | 101 | 75 |
| BEAVER RUN STREAM | Pennsylvania | Fair | 1925 | 101 | 100 |
| SO BRANCH OF MUDDY CREEK | Pennsylvania | Fair | 1925 | 101 | 30 |
| LITTLE CONEWAGO CREEK | Pennsylvania | Fair | 1925 | 101 | 5,201 |
| CONRAIL-RICHMOND BRANCH | Pennsylvania | Fair | 1925 | 101 | 18,604 |
| CSX;BELMONT BRANCH | Pennsylvania | Fair | 1925 | 101 | 12,994 |
| SEPTA (Norristown Br) | Pennsylvania | Poor | 1925 | 101 | 1,000 |
| TIDIOUTE CREEK | Pennsylvania | Poor | 1925 | 101 | 100 |
| ELLSWORTH E BUSWAY NSR | Pennsylvania | Fair | 1925 | 101 | 8,242 |
| BEAVERDAM CREEK | Pennsylvania | Good | 1926 | 100 | 306 |
| MINEY BRANCH | Pennsylvania | Fair | 1926 | 100 | 100 |
| BR.BECKETS RUN | Pennsylvania | Poor | 1926 | 100 | 282 |
| SAW MILL RUN | Pennsylvania | Fair | 1926 | 100 | 42,292 |
| GIRTYS RUN | Pennsylvania | Fair | 1926 | 100 | 14,237 |
| BR.BIG SEWICKLEY CREEK | Pennsylvania | Good | 1926 | 100 | 7,470 |
| ALLEGH RIV 10 ST BY-PASS | Pennsylvania | Fair | 1926 | 100 | 9,900 |
| ALLEGH RIV 10 ST BY-PASS | Pennsylvania | Fair | 1926 | 100 | 22,462 |
| SYCAMORE RUN | Pennsylvania | Fair | 1926 | 100 | 15,217 |
| SIXTH STREET | Pennsylvania | Fair | 1926 | 100 | 2,843 |
| LR 278-LIBERTY ST | Pennsylvania | Fair | 1926 | 100 | 8,308 |
| BRUSH CREEK | Pennsylvania | Fair | 1926 | 100 | 4,868 |
| TR.EVITTS CREEK | Pennsylvania | Poor | 1926 | 100 | 6,158 |
| MILK & WATER CREEK | Pennsylvania | Poor | 1926 | 100 | 122 |
| LAUREL RUN | Pennsylvania | Fair | 1926 | 100 | 19,330 |
| TULPEHOCKEN CREEK | Pennsylvania | Fair | 1926 | 100 | 4,439 |
| TRIB.MILL CREEK | Pennsylvania | Fair | 1926 | 100 | 4,481 |
| SPRING CREEK | Pennsylvania | Fair | 1926 | 100 | 4,305 |
| MONOCACY CREEK | Pennsylvania | Good | 1926 | 100 | 4,305 |
| STONY RUN | Pennsylvania | Fair | 1926 | 100 | 367 |
| NORFOLK/SOUTHERN RR | Pennsylvania | Fair | 1926 | 100 | 6,321 |
| LITTLE MANATAWNY CR | Pennsylvania | Fair | 1926 | 100 | 1,681 |
| IRONSTONE CREEK | Pennsylvania | Fair | 1926 | 100 | 473 |
| SINKING RUN | Pennsylvania | Fair | 1926 | 100 | 406 |
| GULF BROOK | Pennsylvania | Poor | 1926 | 100 | 1,876 |
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.