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 |
|---|---|---|---|---|---|
| PENNYPACK CREEK | Pennsylvania | Good | 1697 | 329 | 16,267 |
| COOKS CREEK | Pennsylvania | Fair | 1777 | 249 | 1,404 |
| GULPH MILLS CREEK | Pennsylvania | Fair | 1789 | 237 | 5,486 |
| SKIPPACK CREEK | Pennsylvania | Fair | 1792 | 234 | 14,242 |
| NEWTOWN CREEK | Pennsylvania | Fair | 1796 | 230 | 4,254 |
| PERKIOMEN CREEK | Pennsylvania | Fair | 1798 | 228 | 11,474 |
| Tacony Creek | Pennsylvania | Poor | 1801 | 225 | 50 |
| NOCKAMIXON CREEK | Pennsylvania | Fair | 1804 | 222 | 100 |
| PIGEON CREEK | Pennsylvania | Poor | 1804 | 222 | 406 |
| EAST BR.BRANDYWINE CREEK | Pennsylvania | Fair | 1807 | 219 | 7,057 |
| DARBY CREEK / 3476-F8 | Pennsylvania | Fair | 1810 | 216 | 5,835 |
| SANDY RUN | Pennsylvania | Fair | 1810 | 216 | 9,087 |
| SHERMAN CREEK | Pennsylvania | Fair | 1810 | 216 | 25 |
| LEHIGH RIVER | Pennsylvania | Fair | 1812 | 214 | 100 |
| CONEWAGO CREEK | Pennsylvania | Good | 1820 | 206 | 650 |
| CONOCOCHEAGUE CREEK W BR | Pennsylvania | Poor | 1820 | 206 | 150 |
| Wissahickon Creek | Pennsylvania | Poor | 1820 | 206 | 12,200 |
| CEDAR CREEK | Pennsylvania | Poor | 1824 | 202 | 1,000 |
| W.BR.CONOCOCHEAGUE CREEK | Pennsylvania | Fair | 1825 | 201 | 609 |
| CONODOGUINET CREEK | Pennsylvania | Poor | 1825 | 201 | 609 |
| CONOCOCHEAGUE CREEK W.BR | Pennsylvania | Fair | 1825 | 201 | 250 |
| NOCKAMIXON CREEK | Pennsylvania | Fair | 1826 | 200 | 100 |
| W.BR.BRANDYWINE CREEK | Pennsylvania | Fair | 1826 | 200 | 4,084 |
| INDIAN CREEK | Pennsylvania | Poor | 1826 | 200 | 100 |
| BIG SEWICKLEY CREEK | Pennsylvania | Fair | 1827 | 199 | 2,000 |
| TRIB CONODOGUINET CR | Pennsylvania | Fair | 1827 | 199 | 702 |
| CONODOGUINET CREEK | Pennsylvania | Fair | 1827 | 199 | 956 |
| CONOCOCHEAGUE CREEK | Pennsylvania | Fair | 1828 | 198 | 3,700 |
| LITTLE LEHIGH CREEK | Pennsylvania | Poor | 1828 | 198 | 1,000 |
| SOUTHAMPTON CREEK | Pennsylvania | Fair | 1828 | 198 | 11,488 |
| DELAWARE CANAL | Pennsylvania | Poor | 1830 | 196 | — |
| BRANCH SKIPPACK CREEK | Pennsylvania | Poor | 1830 | 196 | 2,907 |
| CHILLISQUAQUE CREEK | Pennsylvania | Fair | 1830 | 196 | 100 |
| DELAWARE CANAL | Pennsylvania | Fair | 1832 | 194 | 660 |
| DELAWARE CANAL | Pennsylvania | Fair | 1832 | 194 | 10 |
| DELAWARE CANAL | Pennsylvania | Poor | 1832 | 194 | 40 |
| DELAWARE CANAL | Pennsylvania | Poor | 1832 | 194 | 4 |
| DELAWARE CANAL | Pennsylvania | Fair | 1832 | 194 | 60 |
| DELAWARE CANAL | Pennsylvania | Poor | 1832 | 194 | 380 |
| DELAWARE CANAL | Pennsylvania | Fair | 1832 | 194 | 15 |
| DELAWARE CANAL | Pennsylvania | Poor | 1832 | 194 | 20 |
| DELAWARE CANAL | Pennsylvania | Fair | 1832 | 194 | 10 |
| DELAWARE CANAL | Pennsylvania | Poor | 1832 | 194 | 6 |
| DELAWARE CANAL | Pennsylvania | Poor | 1832 | 194 | 30 |
| DELAWARE CANAL | Pennsylvania | Poor | 1832 | 194 | 60 |
| DELAWARE CANAL | Pennsylvania | Poor | 1832 | 194 | 200 |
| LAUREL RUN | Pennsylvania | Poor | 1832 | 194 | 500 |
| Delaware Canal | Pennsylvania | Good | 1832 | 194 | 20 |
| ONTELAUNEE CREEK | Pennsylvania | Poor | 1834 | 192 | 100 |
| FRENCH CREEK | Pennsylvania | Fair | 1837 | 189 | 1,662 |
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.