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 |
|---|---|---|---|---|---|
| PINE CREEK | Pennsylvania | Poor | 1890 | 136 | 190 |
| KNAPP CREEK | Pennsylvania | Poor | 1890 | 136 | 40 |
| SWAMP CREEK | Pennsylvania | Fair | 1890 | 136 | 838 |
| RDG.BLUE MT.NOR RR SCH.R | Pennsylvania | Poor | 1890 | 136 | — |
| BUFFALO CREEK | Pennsylvania | Fair | 1890 | 136 | 50 |
| MILLERS RUN | Pennsylvania | Good | 1890 | 136 | 40 |
| WHEELING CREEK TRIB | Pennsylvania | Poor | 1890 | 136 | 20 |
| PIGEON CREEK trib | Pennsylvania | Fair | 1890 | 136 | 150 |
| N BRANCH PIGEON CREEK | Pennsylvania | Fair | 1890 | 136 | 2 |
| CSX RAILROAD | Pennsylvania | Good | 1890 | 136 | 27,785 |
| MESHOPPEN CREEK | Pennsylvania | Good | 1890 | 136 | 50 |
| BIG SEWICKLEY CREEK EB | Pennsylvania | Fair | 1891 | 135 | 118 |
| UNAMI CREEK | Pennsylvania | Poor | 1891 | 135 | 100 |
| COCALICO CREEK | Pennsylvania | Fair | 1891 | 135 | 100 |
| OVER LITTLE PINE CR. | Pennsylvania | Poor | 1891 | 135 | 143 |
| SHAMOKIN CREEK | Pennsylvania | Fair | 1891 | 135 | 5,850 |
| SHERMAN CREEK | Pennsylvania | Fair | 1891 | 135 | 100 |
| LAUREL HILL CREEK | Pennsylvania | Poor | 1891 | 135 | 50 |
| DEER CREEK | Pennsylvania | Good | 1892 | 134 | 251 |
| RAYSTOWN BR.JUNIATA RIV. | Pennsylvania | Fair | 1892 | 134 | 20 |
| BIG ELK CREEK | Pennsylvania | Fair | 1892 | 134 | 177 |
| OVER OIL CREEK EAST BR | Pennsylvania | Fair | 1892 | 134 | 191 |
| OVER OIL CREEK | Pennsylvania | Fair | 1892 | 134 | 451 |
| YOUGHIOGHENY RIVER/TRAIL | Pennsylvania | Poor | 1892 | 134 | 1,086 |
| MUDDY CREEK | Pennsylvania | Poor | 1892 | 134 | — |
| NRTH FORK LIL BEAV CREEK | Pennsylvania | Poor | 1892 | 134 | 50 |
| OVER LT NESHANNOCK CR TR | Pennsylvania | Fair | 1892 | 134 | 503 |
| UNAMI CREEK | Pennsylvania | Fair | 1892 | 134 | 259 |
| ALLEGHENY RIVER | Pennsylvania | Fair | 1892 | 134 | 97 |
| SCHUYLKILL 24TH RR 32 31 | Pennsylvania | Fair | 1892 | 134 | 16,101 |
| Frankford Creek | Pennsylvania | Fair | 1892 | 134 | 11,500 |
| AMTRAK (NE CORRIDOR) | Pennsylvania | Good | 1892 | 134 | 5,300 |
| N. 13TH STREET | Pennsylvania | Poor | 1892 | 134 | 150 |
| DEER CREEK | Pennsylvania | Fair | 1893 | 133 | 88 |
| ABERS CREEK | Pennsylvania | Poor | 1893 | 133 | 850 |
| GALLOWS RUN | Pennsylvania | Good | 1893 | 133 | 50 |
| OVER PADAN RUN | Pennsylvania | Poor | 1893 | 133 | 212 |
| ROBERTS RUN | Pennsylvania | Poor | 1893 | 133 | 50 |
| PEQUEA CREEK | Pennsylvania | Fair | 1893 | 133 | 2,000 |
| EAST BR. PERKIOMEN CREEK | Pennsylvania | Poor | 1893 | 133 | 175 |
| MAHANOY CREEK | Pennsylvania | Poor | 1893 | 133 | 3,447 |
| LITTLE SCHUYLKILL RIVER | Pennsylvania | Fair | 1893 | 133 | 3,000 |
| BULL CREEK | Pennsylvania | Poor | 1894 | 132 | 155 |
| BULL CREEK | Pennsylvania | Fair | 1894 | 132 | 261 |
| NORTH BR.TOWANDA CREEK | Pennsylvania | Fair | 1894 | 132 | 75 |
| PICKERING CREEK | Pennsylvania | Good | 1894 | 132 | 60 |
| WYNCOOP RUN | Pennsylvania | Fair | 1894 | 132 | 204 |
| BUSHKILL CREEK | Pennsylvania | Fair | 1894 | 132 | 12,031 |
| CASSELMAN RIVER | Pennsylvania | Poor | 1894 | 132 | 100 |
| TIOGA RIVER | Pennsylvania | Good | 1894 | 132 | 55 |
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.