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 |
|---|---|---|---|---|---|
| DOUGLAS RUN | Pennsylvania | Fair | 1940 | 86 | 1,747 |
| MCLAUGHLIN RUN | Pennsylvania | Fair | 1940 | 86 | 16,943 |
| POTATO GARDEN RUN | Pennsylvania | Fair | 1940 | 86 | 529 |
| BRUSH CREEK | Pennsylvania | Good | 1940 | 86 | 12,100 |
| ABANDONED RR RAVINE | Pennsylvania | Fair | 1940 | 86 | 4,214 |
| MCCLARENS RUN | Pennsylvania | Poor | 1940 | 86 | 944 |
| PINEY FORK CREEK | Pennsylvania | Fair | 1940 | 86 | 200 |
| ZOO WALKWAY | Pennsylvania | Fair | 1940 | 86 | 11,200 |
| I-376(WB) FORT PITT BLVD | Pennsylvania | Fair | 1940 | 86 | 2,824 |
| CENTER AVENUE | Pennsylvania | Fair | 1940 | 86 | 500 |
| SOUTH FORK PINE CREEK | Pennsylvania | Fair | 1940 | 86 | 109 |
| COWANSHANNOCK CREEK | Pennsylvania | Fair | 1940 | 86 | 697 |
| CAMPBELL RUN | Pennsylvania | Fair | 1940 | 86 | 321 |
| CROOKED CREEK | Pennsylvania | Poor | 1940 | 86 | 582 |
| NICHOLSON RUN | Pennsylvania | Fair | 1940 | 86 | 10 |
| NICHOLSON RUN | Pennsylvania | Fair | 1940 | 86 | 100 |
| BENNETT RUN | Pennsylvania | Good | 1940 | 86 | 4,106 |
| BRANCH BENNETT RUN | Pennsylvania | Fair | 1940 | 86 | 4,106 |
| DUNNING CREEK OVERFLOW | Pennsylvania | Good | 1940 | 86 | 623 |
| BEAVER CREEK | Pennsylvania | Fair | 1940 | 86 | 624 |
| RAYSTOWN BR. JUNIATA RIV | Pennsylvania | Fair | 1940 | 86 | 357 |
| GAP RUN | Pennsylvania | Good | 1940 | 86 | 449 |
| T-446 BR.JUNIATA | Pennsylvania | Fair | 1940 | 86 | 36,252 |
| SR 2029 | Pennsylvania | Fair | 1940 | 86 | 8,598 |
| SHOBERS RUN | Pennsylvania | Good | 1940 | 86 | 350 |
| FURNACE CREEK | Pennsylvania | Fair | 1940 | 86 | 100 |
| OYSTERVILLE CREEK | Pennsylvania | Poor | 1940 | 86 | 207 |
| KAERCHERS CREEK | Pennsylvania | Poor | 1940 | 86 | 858 |
| PIGEON CREEK | Pennsylvania | Fair | 1940 | 86 | 1,000 |
| PLUM CREEK | Pennsylvania | Fair | 1940 | 86 | 517 |
| FOX RUN | Pennsylvania | Good | 1940 | 86 | 137 |
| BURGOON RUN | Pennsylvania | Good | 1940 | 86 | 3,921 |
| CLOVER CREEK | Pennsylvania | Fair | 1940 | 86 | 359 |
| BURGOON RUN | Pennsylvania | Poor | 1940 | 86 | 1,424 |
| MARY ANN CREEK | Pennsylvania | Fair | 1940 | 86 | 20 |
| SUGAR CREEK | Pennsylvania | Fair | 1940 | 86 | 8,792 |
| KENT RUN CREEK | Pennsylvania | Fair | 1940 | 86 | 4,215 |
| MONRTNSHIPPERSLIFELINERR | Pennsylvania | Fair | 1940 | 86 | 1,267 |
| GULF CREEK | Pennsylvania | Fair | 1940 | 86 | 72 |
| SUGAR RUN | Pennsylvania | Fair | 1940 | 86 | 50 |
| BRANCH BEAVER RUN | Pennsylvania | Fair | 1940 | 86 | 4,987 |
| GALLOWS RUN | Pennsylvania | Poor | 1940 | 86 | 350 |
| HOUGHS CREEK | Pennsylvania | Poor | 1940 | 86 | 100 |
| GLADE RUN | Pennsylvania | Good | 1940 | 86 | 4,488 |
| LIT CONNOQUENESSING CR | Pennsylvania | Poor | 1940 | 86 | 647 |
| LARDINTOWN RUN | Pennsylvania | Good | 1940 | 86 | 263 |
| TRIB TO BREAKNECK CREEK | Pennsylvania | Fair | 1940 | 86 | 7,468 |
| MUDDY CREEK | Pennsylvania | Fair | 1940 | 86 | 100 |
| N BR SLIPPERY ROCK CR | Pennsylvania | Fair | 1940 | 86 | 50 |
| SLIPPERY ROCK CREEK | Pennsylvania | Fair | 1940 | 86 | 100 |
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.