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 |
|---|---|---|---|---|---|
| MUDDY RUN | Pennsylvania | Fair | 1929 | 97 | 747 |
| NORTH BR BROWNS RUN | Pennsylvania | Poor | 1929 | 97 | 25 |
| LITTLE ANTIETAM CREEK | Pennsylvania | Fair | 1929 | 97 | 5,444 |
| Trib. Conodoguinet Creek | Pennsylvania | Fair | 1929 | 97 | 4,203 |
| CONODOGUINET CREEK | Pennsylvania | Fair | 1929 | 97 | 4,225 |
| BACK CREEK TRIB | Pennsylvania | Fair | 1929 | 97 | 250 |
| LITTLE BRUSH CREEK | Pennsylvania | Fair | 1929 | 97 | 256 |
| PALMER RUN | Pennsylvania | Fair | 1929 | 97 | 224 |
| BRANCH OF PURSLEY CREEK | Pennsylvania | Fair | 1929 | 97 | 382 |
| NORTH SPRING CREEK | Pennsylvania | Fair | 1929 | 97 | 792 |
| CROOKED CREEK | Pennsylvania | Fair | 1929 | 97 | 3,324 |
| ROSS RUN | Pennsylvania | Poor | 1929 | 97 | 1,723 |
| TRIB COCOLAMUS CREEK | Pennsylvania | Fair | 1929 | 97 | 3,817 |
| MAHANTANGO CREEK | Pennsylvania | Poor | 1929 | 97 | 4,026 |
| CRANES RUN | Pennsylvania | Poor | 1929 | 97 | 395 |
| TRIB. TO COCOLAMUS CREEK | Pennsylvania | Poor | 1929 | 97 | 240 |
| SNITZ CREEK | Pennsylvania | Fair | 1929 | 97 | 3,739 |
| SUSQUE RVR;SR0624 NS RR | Pennsylvania | Poor | 1929 | 97 | 10,826 |
| QUITTAPAHILLA CREEK | Pennsylvania | Poor | 1929 | 97 | 2,500 |
| SWATARA CREEK | Pennsylvania | Poor | 1929 | 97 | 1,500 |
| JORDAN CREEK | Pennsylvania | Fair | 1929 | 97 | 63,939 |
| SAUCON CREEK | Pennsylvania | Fair | 1929 | 97 | 27,279 |
| LEHIGH RIVER CORMAN RR | Pennsylvania | Fair | 1929 | 97 | 17,700 |
| ABANDONED RAILROAD | Pennsylvania | Fair | 1929 | 97 | 14,054 |
| BRANCH OF SWABIA CREEK | Pennsylvania | Poor | 1929 | 97 | 1,400 |
| LITTLE LEHIGH CREEK | Pennsylvania | Fair | 1929 | 97 | 8,616 |
| JORDAN CREEK | Pennsylvania | Fair | 1929 | 97 | 5,129 |
| MILL CREEK | Pennsylvania | Fair | 1929 | 97 | 1,548 |
| NFSRR RBMNRR MILL CK | Pennsylvania | Fair | 1929 | 97 | 6,124 |
| WAPWALLOPEN CREEK | Pennsylvania | Fair | 1929 | 97 | 12,186 |
| BOW CREEK | Pennsylvania | Poor | 1929 | 97 | 15,111 |
| MILL CREEK | Pennsylvania | Poor | 1929 | 97 | 18,527 |
| LAUREL RUN | Pennsylvania | Poor | 1929 | 97 | 5,909 |
| BLACK CREEK | Pennsylvania | Poor | 1929 | 97 | 1,506 |
| OVER TOMBS RUN | Pennsylvania | Fair | 1929 | 97 | 1,516 |
| OVER WOLF RUN | Pennsylvania | Fair | 1929 | 97 | 26 |
| KNAPP CREEK | Pennsylvania | Fair | 1929 | 97 | 1,255 |
| OVER LITTLE SHENANGO TR | Pennsylvania | Fair | 1929 | 97 | 1,870 |
| Pine Hollow Run | Pennsylvania | Poor | 1929 | 97 | 268 |
| COFFEE RUN | Pennsylvania | Fair | 1929 | 97 | 7,672 |
| CHERRY CREEK | Pennsylvania | Fair | 1929 | 97 | 2,917 |
| POND CREEK | Pennsylvania | Poor | 1929 | 97 | 1,134 |
| TACONY CREEK | Pennsylvania | Fair | 1929 | 97 | 5,619 |
| DEEP CREEK | Pennsylvania | Poor | 1929 | 97 | 597 |
| MINISTER CREEK | Pennsylvania | Fair | 1929 | 97 | 250 |
| SCIOTO CREEK | Pennsylvania | Fair | 1929 | 97 | 200 |
| MACOBY CREEK | Pennsylvania | Fair | 1929 | 97 | 300 |
| INDIAN CREEK | Pennsylvania | Fair | 1929 | 97 | 8,777 |
| LITTLE BUSHKILL CREEK | Pennsylvania | Poor | 1929 | 97 | 7,017 |
| WEST FORK CREEK | Pennsylvania | Fair | 1929 | 97 | 841 |
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.