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 |
|---|---|---|---|---|---|
| ASYLUM RUN | Pennsylvania | Fair | 1920 | 106 | 50 |
| BRANCH CHESTER CREEK | Pennsylvania | Fair | 1920 | 106 | 1,201 |
| CRUM CREEK;SPRINGTON RES | Pennsylvania | Fair | 1920 | 106 | 4,084 |
| BENNETT BR SINNEMAHONING | Pennsylvania | Fair | 1920 | 106 | 300 |
| GOODBAN RUN | Pennsylvania | Poor | 1920 | 106 | 11 |
| CSX | Pennsylvania | Poor | 1920 | 106 | 234 |
| OVER MILL CREEK | Pennsylvania | Fair | 1920 | 106 | 8,327 |
| DUNLAP CREEK | Pennsylvania | Poor | 1920 | 106 | 20 |
| MOUNTS CREEK | Pennsylvania | Poor | 1920 | 106 | 1,900 |
| MOUNTS CREEK | Pennsylvania | Poor | 1920 | 106 | 900 |
| Browns Run | Pennsylvania | Poor | 1920 | 106 | 50 |
| DOWNERS RUN | Pennsylvania | Poor | 1920 | 106 | 100 |
| OVER SALMON CREEK | Pennsylvania | Fair | 1920 | 106 | 55 |
| W BR LITTLE ANTIETAM TRB | Pennsylvania | Fair | 1920 | 106 | 200 |
| W BR LITTLE ANTIETAM TRB | Pennsylvania | Fair | 1920 | 106 | 200 |
| LICKING CREEK | Pennsylvania | Fair | 1920 | 106 | 50 |
| LITTLE WHITELEY CREEK | Pennsylvania | Good | 1920 | 106 | 150 |
| BRANCH OF RUDOLPH RUN | Pennsylvania | Fair | 1920 | 106 | 14 |
| SHOUPS RUN | Pennsylvania | Poor | 1920 | 106 | 25 |
| SHADE CREEK | Pennsylvania | Poor | 1920 | 106 | 25 |
| EB.STANDING STONE CREEK | Pennsylvania | Fair | 1920 | 106 | 51 |
| STANDING STONE CREEK | Pennsylvania | Poor | 1920 | 106 | 40 |
| MILL CREEK | Pennsylvania | Poor | 1920 | 106 | 284 |
| SOUTH BRANCH OF BEAR RUN | Pennsylvania | Fair | 1920 | 106 | 50 |
| BRUSH CREEK | Pennsylvania | Fair | 1920 | 106 | 20 |
| CLEAR RUN | Pennsylvania | Good | 1920 | 106 | 50 |
| TRIB TUSCARORA CREEK | Pennsylvania | Fair | 1920 | 106 | 292 |
| ROARING BROOK | Pennsylvania | Poor | 1920 | 106 | 30 |
| TRIB TO CONESTOGA CREEK | Pennsylvania | Fair | 1920 | 106 | 1,069 |
| CONEWINGO CREEK | Pennsylvania | Poor | 1920 | 106 | 278 |
| INDIAN RUN | Pennsylvania | Fair | 1920 | 106 | 399 |
| CHIQUES CREEK | Pennsylvania | Poor | 1920 | 106 | 1,072 |
| BRUBAKERS RUN | Pennsylvania | Fair | 1920 | 106 | 1,127 |
| CHIQUES CREEK | Pennsylvania | Poor | 1920 | 106 | 410 |
| TRIB MILL CREEK | Pennsylvania | Poor | 1920 | 106 | 515 |
| MILL CREEK | Pennsylvania | Poor | 1920 | 106 | 570 |
| MILL CREEK | Pennsylvania | Poor | 1920 | 106 | 515 |
| JAMISON RUN | Pennsylvania | Fair | 1920 | 106 | 171 |
| JAMISON RUN | Pennsylvania | Fair | 1920 | 106 | 100 |
| SLIPPERY ROCK CREEK | Pennsylvania | Poor | 1920 | 106 | - |
| HAMMER CREEK | Pennsylvania | Fair | 1920 | 106 | 100 |
| TRIB SWATARA CREEK | Pennsylvania | Fair | 1920 | 106 | 300 |
| QUITTAPAHILLA CREEK | Pennsylvania | Poor | 1920 | 106 | 150 |
| TULPEHOCKEN CREEK | Pennsylvania | Fair | 1920 | 106 | 800 |
| FELLS CREEK | Pennsylvania | Fair | 1920 | 106 | 225 |
| HELFRICH SPRING POND | Pennsylvania | Fair | 1920 | 106 | 3,000 |
| COPLAY CREEK | Pennsylvania | Poor | 1920 | 106 | 300 |
| MONACACY CR.RR CONESTOGA | Pennsylvania | Fair | 1920 | 106 | 1,000 |
| NESCOPECK CREEK | Pennsylvania | Poor | 1920 | 106 | 280 |
| TOBYS CREEK | Pennsylvania | Poor | 1920 | 106 | 220 |
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.