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 |
|---|---|---|---|---|---|
| SWAMP CREEK | Pennsylvania | Fair | 1860 | 166 | 595 |
| MILL CREEK | Pennsylvania | Fair | 1860 | 166 | 900 |
| BRANCH BRANDYWINE CREEK | Pennsylvania | Fair | 1860 | 166 | 2,283 |
| POWELLS CREEK | Pennsylvania | Poor | 1860 | 166 | 6,935 |
| PINE CREEK | Pennsylvania | Poor | 1860 | 166 | 320 |
| Conococheague Creek | Pennsylvania | Fair | 1860 | 166 | 2,696 |
| PEQUEA CREEK | Pennsylvania | Fair | 1860 | 166 | 400 |
| JORDAN CREEK | Pennsylvania | Fair | 1860 | 166 | 200 |
| LOWER LITTLE SWATARA CR | Pennsylvania | Good | 1860 | 166 | 50 |
| LOWER LITTLE SWATARA CR | Pennsylvania | Good | 1860 | 166 | 50 |
| Sherman Creek | Pennsylvania | Fair | 1864 | 162 | 159 |
| 24TH STREET | Pennsylvania | Good | 1864 | 162 | 8,914 |
| VALLEY CR. 3365-G7 | Pennsylvania | Fair | 1865 | 161 | 1,604 |
| ROARING CREEK | Pennsylvania | Fair | 1865 | 161 | — |
| SHAWNEE CREEK | Pennsylvania | Good | 1866 | 160 | 50 |
| FRENCH CREEK | Pennsylvania | Good | 1866 | 160 | 3,524 |
| DUNNING CREEK | Pennsylvania | Good | 1867 | 159 | 60 |
| FRENCH CREEK | Pennsylvania | Fair | 1867 | 159 | 3,326 |
| VALLEY CREEK | Pennsylvania | Poor | 1867 | 159 | 1,831 |
| CONESTOGA RIVER | Pennsylvania | Fair | 1867 | 159 | 425 |
| VANDERMARK CREEK | Pennsylvania | Poor | 1867 | 159 | 50 |
| MANATAWNY CREEK | Pennsylvania | Fair | 1868 | 158 | 255 |
| MAIDEN CREEK | Pennsylvania | Good | 1869 | 157 | 206 |
| SACONY CREEK | Pennsylvania | Poor | 1869 | 157 | 113 |
| CHIQUES CREEK | Pennsylvania | Poor | 1869 | 157 | 750 |
| CONODOGUINET CREEK | Pennsylvania | Fair | 1870 | 156 | 248 |
| LITTLE LEHIGH CREEK | Pennsylvania | Poor | 1870 | 156 | 500 |
| CABIN RUN | Pennsylvania | Fair | 1871 | 155 | 100 |
| PEQUEA CREEK | Pennsylvania | Fair | 1871 | 155 | 410 |
| SHERMAN CREEK | Pennsylvania | Fair | 1871 | 155 | 400 |
| FLOOD CHANNEL | Pennsylvania | Fair | 1871 | 155 | 100 |
| MORRIS RUN | Pennsylvania | Poor | 1872 | 154 | 2,464 |
| TINICUM CREEK | Pennsylvania | Fair | 1872 | 154 | 100 |
| E BR OF BRANDYWINE CREEK | Pennsylvania | Fair | 1872 | 154 | 1,061 |
| TOHICKON CREEK | Pennsylvania | Fair | 1873 | 153 | 187 |
| PIDCOCK CREEK | Pennsylvania | Fair | 1873 | 153 | 100 |
| COOKS CREEK | Pennsylvania | Poor | 1873 | 153 | 100 |
| W BR SUSQUEHANNA RIVER | Pennsylvania | Fair | 1873 | 153 | 135 |
| LITTLE CONESTOGA CREEK | Pennsylvania | Fair | 1873 | 153 | 500 |
| DURELL CREEK | Pennsylvania | Fair | 1874 | 152 | 50 |
| CABIN RUN (COVERED BRDG) | Pennsylvania | Fair | 1874 | 152 | 597 |
| EAST BR. PERKIOMEN CREEK | Pennsylvania | Fair | 1874 | 152 | 1,592 |
| TROUT/MASCHELLAMAC CREEK | Pennsylvania | Poor | 1874 | 152 | 17,059 |
| W BR NESHAMINY CREEK | Pennsylvania | Fair | 1874 | 152 | 8,535 |
| SCHWABEN CREEK | Pennsylvania | Fair | 1874 | 152 | 25 |
| SHORT CREEK | Pennsylvania | Good | 1874 | 152 | 112 |
| PINE RUN | Pennsylvania | Good | 1875 | 151 | 5,128 |
| PENNSYLVANIA CANAL | Pennsylvania | Good | 1875 | 151 | 200 |
| PIDCOCK CREEK | Pennsylvania | Poor | 1875 | 151 | 150 |
| MILL CREEK | Pennsylvania | Fair | 1875 | 151 | 201 |
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.