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 |
|---|---|---|---|---|---|
| W.BR.SUSQUEHANNA RIVER | Pennsylvania | Poor | 1915 | 111 | 540 |
| WALNUT RUN | Pennsylvania | Poor | 1915 | 111 | 307 |
| WALNUT RUN | Pennsylvania | Poor | 1915 | 111 | 308 |
| LICK RUN | Pennsylvania | Poor | 1915 | 111 | 250 |
| BUCK RUN & DOE RUN | Pennsylvania | Fair | 1915 | 111 | 307 |
| BROAD RUN | Pennsylvania | Fair | 1915 | 111 | 959 |
| FRENCH CREEK | Pennsylvania | Fair | 1915 | 111 | 491 |
| SHAMONA CREEK | Pennsylvania | Fair | 1915 | 111 | 2,866 |
| BRANCH OF BEAVER RUN | Pennsylvania | Poor | 1915 | 111 | 35 |
| SANDY CREEK | Pennsylvania | Poor | 1915 | 111 | 25 |
| MORAVIAN RUN | Pennsylvania | Poor | 1915 | 111 | 10 |
| BENNETT BRANCH | Pennsylvania | Poor | 1915 | 111 | 25 |
| LAUREL RUN | Pennsylvania | Poor | 1915 | 111 | 30 |
| LUTHERSBURGBRSANDYLICKCR | Pennsylvania | Poor | 1915 | 111 | 80 |
| TRIB TO CATAWISSA CREEK | Pennsylvania | Fair | 1915 | 111 | 2,298 |
| OVER TORRY RUN | Pennsylvania | Poor | 1915 | 111 | 250 |
| OVER SIXTEEN MILE CK BR | Pennsylvania | Fair | 1915 | 111 | 7,741 |
| OVER ROSS RUN | Pennsylvania | Fair | 1915 | 111 | 161 |
| WHITETHORN RUN | Pennsylvania | Poor | 1915 | 111 | 287 |
| CRABAPPLE CREEK | Pennsylvania | Fair | 1915 | 111 | 159 |
| RUFF CREEK | Pennsylvania | Fair | 1915 | 111 | 57 |
| BIG RUN | Pennsylvania | Poor | 1915 | 111 | — |
| CALLEN RUN | Pennsylvania | Fair | 1915 | 111 | 144 |
| TUSCARORA CREEK | Pennsylvania | Poor | 1915 | 111 | 50 |
| NORFOLK SOUTHERN RR | Pennsylvania | Good | 1915 | 111 | 319 |
| OVER SPRING CREEK | Pennsylvania | Fair | 1915 | 111 | 86 |
| COLE CREEK | Pennsylvania | Poor | 1915 | 111 | 75 |
| COLE CREEK | Pennsylvania | Fair | 1915 | 111 | 120 |
| OVER FREELAND RUN | Pennsylvania | Fair | 1915 | 111 | 349 |
| Wolf Creek | Pennsylvania | Fair | 1915 | 111 | 2,090 |
| TREASTER RUN | Pennsylvania | Poor | 1915 | 111 | 200 |
| MEADOW CREEK | Pennsylvania | Poor | 1915 | 111 | 75 |
| APPENZELL CREEK | Pennsylvania | Poor | 1915 | 111 | 145 |
| APPENZELL CREEK | Pennsylvania | Fair | 1915 | 111 | 187 |
| SCIOTO CREEK | Pennsylvania | Fair | 1915 | 111 | 97 |
| MAUSES CREEK | Pennsylvania | Fair | 1915 | 111 | 25 |
| MARTINS CREEK | Pennsylvania | Fair | 1915 | 111 | 1,415 |
| OVER MAHANOY CREEK | Pennsylvania | Fair | 1915 | 111 | 124 |
| POKEY RUN | Pennsylvania | Fair | 1915 | 111 | 160 |
| WILSON CREEK | Pennsylvania | Fair | 1915 | 111 | 255 |
| QUEMAHONING CREEK | Pennsylvania | Fair | 1915 | 111 | 524 |
| LAUREL RUN | Pennsylvania | Fair | 1915 | 111 | 25 |
| PINEY RUN | Pennsylvania | Fair | 1915 | 111 | 20 |
| DRAKE RUN | Pennsylvania | Fair | 1915 | 111 | 25 |
| NORFOLK SOUTHERN RR | Pennsylvania | Poor | 1915 | 111 | 1,012 |
| NORFOLK SOUTHERN RR | Pennsylvania | Poor | 1915 | 111 | 82 |
| NORFOLK SOUTHERN RR | Pennsylvania | Fair | 1915 | 111 | 482 |
| WHITE DEER CREEK | Pennsylvania | Good | 1915 | 111 | 163 |
| OVER LITTLE SANDY CREEK | Pennsylvania | Fair | 1915 | 111 | 143 |
| OVER BR. SCRUBGRASS CK. | Pennsylvania | Poor | 1915 | 111 | 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.