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 |
|---|---|---|---|---|---|
| BR OF EQUINUNK CREEK | Pennsylvania | Fair | 1934 | 92 | 149 |
| CAMP RUN | Pennsylvania | Poor | 1934 | 92 | 387 |
| BRANCH LOYALHANNA CREEK | Pennsylvania | Fair | 1934 | 92 | 162 |
| WEBSTER HOLLOW RUN | Pennsylvania | Fair | 1934 | 92 | 3,831 |
| LINN RUN | Pennsylvania | Good | 1934 | 92 | 325 |
| MESHOPPEN CREEK | Pennsylvania | Poor | 1934 | 92 | 1,699 |
| TRIB TO LAKE CAREY | Pennsylvania | Poor | 1934 | 92 | 227 |
| LEONARD CREEK | Pennsylvania | Fair | 1934 | 92 | 664 |
| RILEY CREEK | Pennsylvania | Poor | 1934 | 92 | 50 |
| MUDDY CREEK | Pennsylvania | Good | 1934 | 92 | 747 |
| TRIB TO CODORUS CREEK | Pennsylvania | Fair | 1934 | 92 | 8,694 |
| KREUTZ CREEK | Pennsylvania | Fair | 1934 | 92 | 12,180 |
| CABIN CREEK | Pennsylvania | Fair | 1934 | 92 | 996 |
| EAST BRANCH CODORUS CR | Pennsylvania | Fair | 1934 | 92 | 752 |
| WEST BR CODORUS CREEK | Pennsylvania | Fair | 1934 | 92 | 3,082 |
| OIL CREEK | Pennsylvania | Fair | 1934 | 92 | 1,408 |
| CODORUS CREEK | Pennsylvania | Fair | 1934 | 92 | 12,802 |
| CONEWAGO CREEK | Pennsylvania | Fair | 1934 | 92 | 3,584 |
| LAUREL RUN | Pennsylvania | Poor | 1934 | 92 | 610 |
| AMTRAK;SCH EXPWY&30TH ST | Pennsylvania | Good | 1934 | 92 | 19,950 |
| PENNYPACK CREEK | Pennsylvania | Fair | 1934 | 92 | 1,000 |
| CHARTIERS CREEK | Pennsylvania | Poor | 1934 | 92 | 1,200 |
| S. BRANCH TIONESTA CRK. | Pennsylvania | Fair | 1934 | 92 | 25 |
| FARNSWORTH RUN | Pennsylvania | Fair | 1934 | 92 | 50 |
| KINZUA CREEK | Pennsylvania | Good | 1934 | 92 | 15 |
| EAST BRANCH TIONESTA CRL | Pennsylvania | Fair | 1934 | 92 | 100 |
| CONEWAGO CREEK | Pennsylvania | Poor | 1935 | 91 | 1,280 |
| MARSH CREEK | Pennsylvania | Fair | 1935 | 91 | 150 |
| LEWIS RUN | Pennsylvania | Good | 1935 | 91 | 25,938 |
| LEWIS RUN | Pennsylvania | Fair | 1935 | 91 | 25,938 |
| PETERS CREEK | Pennsylvania | Fair | 1935 | 91 | 6,888 |
| THOMS RUN | Pennsylvania | Good | 1935 | 91 | 5,107 |
| PINE CREEK NORTH BRANCH | Pennsylvania | Fair | 1935 | 91 | 406 |
| MC LAUGHLIN RUN | Pennsylvania | Fair | 1935 | 91 | 3,155 |
| CLIFF STREET | Pennsylvania | Poor | 1935 | 91 | 2,619 |
| BUFFALO CREEK | Pennsylvania | Fair | 1935 | 91 | 795 |
| TRAVERSE CREEK | Pennsylvania | Fair | 1935 | 91 | 245 |
| RAYSTOWN BR.JUNIATA RIV. | Pennsylvania | Fair | 1935 | 91 | 9,597 |
| RAYSTOWN BR JUNIATA RIV | Pennsylvania | Fair | 1935 | 91 | 1,172 |
| SIX MILE RUN | Pennsylvania | Poor | 1935 | 91 | 25 |
| EVITTS CREEK | Pennsylvania | Poor | 1935 | 91 | 60 |
| MAIDEN CREEK | Pennsylvania | Fair | 1935 | 91 | 6,954 |
| NORFOLK SOUTHERN | Pennsylvania | Fair | 1935 | 91 | 6,954 |
| ALLEGHENY CREEK | Pennsylvania | Poor | 1935 | 91 | 300 |
| LAUREL RUN CREEK | Pennsylvania | Poor | 1935 | 91 | 200 |
| SHALTER AVENUE FLOODWAY | Pennsylvania | Poor | 1935 | 91 | 200 |
| PIDCOCK CREEK | Pennsylvania | Poor | 1935 | 91 | 7,075 |
| LICKING CREEK | Pennsylvania | Fair | 1935 | 91 | 3,124 |
| HOGUE RUN | Pennsylvania | Fair | 1935 | 91 | 293 |
| BEAR CREEK | Pennsylvania | Poor | 1935 | 91 | 50 |
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.