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 |
|---|---|---|---|---|---|
| STREETS RUN CREEK | Pennsylvania | Poor | 1931 | 95 | 47 |
| N-S RR /PAT/SASSAFRAS ST | Pennsylvania | Poor | 1931 | 95 | 6,500 |
| GIRTYS RUN | Pennsylvania | Fair | 1931 | 95 | 2,500 |
| ALLEGHENY RIVER | Pennsylvania | Fair | 1931 | 95 | 22,150 |
| T.RAYTWN.BR.JUNIATA RIV. | Pennsylvania | Fair | 1931 | 95 | 1,391 |
| FINN RUN | Pennsylvania | Poor | 1931 | 95 | 1,391 |
| PLUM CREEK | Pennsylvania | Fair | 1931 | 95 | 2,601 |
| WYOMISSING CREEK | Pennsylvania | Fair | 1931 | 95 | 11,125 |
| SINKING RUN | Pennsylvania | Fair | 1931 | 95 | 406 |
| RIGGLES GAP RUN | Pennsylvania | Fair | 1931 | 95 | 1,538 |
| WYSOX CREEK | Pennsylvania | Fair | 1931 | 95 | 1,168 |
| RUSSELL RUN | Pennsylvania | Fair | 1931 | 95 | 788 |
| TOHICKON CREEK | Pennsylvania | Fair | 1931 | 95 | 2,202 |
| NORTH BR.NESHAMINY CREEK | Pennsylvania | Fair | 1931 | 95 | 5,796 |
| BUCK CREEK | Pennsylvania | Fair | 1931 | 95 | 6,954 |
| BRANCH TOCHICKON CREEK | Pennsylvania | Fair | 1931 | 95 | 9,856 |
| BRANCH OF TOHICKON CREEK | Pennsylvania | Fair | 1931 | 95 | 146 |
| PAUNNACUSSING CREEK | Pennsylvania | Good | 1931 | 95 | 153 |
| COOKS CREEK | Pennsylvania | Poor | 1931 | 95 | 200 |
| DELAWARE RIVER | Pennsylvania | Fair | 1931 | 95 | 26,315 |
| DELAWARE River | Pennsylvania | Fair | 1931 | 95 | 4,400 |
| S.FORK BR.LT.CONEMAUGH | Pennsylvania | Fair | 1931 | 95 | 596 |
| NORFOLK SOUTHERN RR | Pennsylvania | Poor | 1931 | 95 | 150 |
| STONY CREEK | Pennsylvania | Fair | 1931 | 95 | 833 |
| WEST BR.WHITE CLAY CREEK | Pennsylvania | Poor | 1931 | 95 | 644 |
| BROAD RUN CREEK | Pennsylvania | Poor | 1931 | 95 | 2,049 |
| EAST BR BRANDYWINE CREEK | Pennsylvania | Fair | 1931 | 95 | 3,479 |
| E. BRANCH BIG ELK CREEK | Pennsylvania | Poor | 1931 | 95 | 499 |
| WHITESIDE RUN | Pennsylvania | Fair | 1931 | 95 | 2,680 |
| MUGSER RUN | Pennsylvania | Fair | 1931 | 95 | 521 |
| MILL RACE | Pennsylvania | Fair | 1931 | 95 | 6,614 |
| SEPTA (P&W) ROUTE 100 | Pennsylvania | Poor | 1931 | 95 | 13,750 |
| WEST BR.CHESTER CREEK | Pennsylvania | Fair | 1931 | 95 | 8,345 |
| DARBY CREEK | Pennsylvania | Poor | 1931 | 95 | 13,380 |
| POWERS RUN | Pennsylvania | Fair | 1931 | 95 | 4,174 |
| DOWNER RUN | Pennsylvania | Fair | 1931 | 95 | 6,698 |
| BEAVER CREEK | Pennsylvania | Poor | 1931 | 95 | 736 |
| YORK RUN | Pennsylvania | Poor | 1931 | 95 | 550 |
| TRIB.W.BR.LIT. ANTIETAM | Pennsylvania | Fair | 1931 | 95 | 9,122 |
| Conococheague Creek | Pennsylvania | Good | 1931 | 95 | 2,125 |
| SOUTH BRUSH CREEK | Pennsylvania | Poor | 1931 | 95 | 309 |
| HERODS RUN | Pennsylvania | Fair | 1931 | 95 | 2,095 |
| RUSH BROOK | Pennsylvania | Fair | 1931 | 95 | 3,064 |
| RUSHBROOK CREEK | Pennsylvania | Fair | 1931 | 95 | 3,064 |
| SO BR TUNKHANNOCK CREEK | Pennsylvania | Fair | 1931 | 95 | 1,022 |
| SOUTH BR TUNKHANNOCK CRK | Pennsylvania | Fair | 1931 | 95 | 1,022 |
| CONOY CREEK | Pennsylvania | Fair | 1931 | 95 | 130 |
| MILL CREEK | Pennsylvania | Fair | 1931 | 95 | 2,897 |
| LITTLE LEHIGH CREEK | Pennsylvania | Fair | 1931 | 95 | 500 |
| OVER LOYALSOCK CREEK | Pennsylvania | Fair | 1931 | 95 | 13,126 |
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.