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.

Clear
Bridge State Condition Year Built Age (Years) ADT
BRANCH NAAMANS CREEK Pennsylvania Poor 1916 110 8,790
LITTLE TOBY CREEK Pennsylvania Poor 1916 110 50
NORTH BRANCH BROWNS RUN Pennsylvania Good 1916 110 598
WHITETHORN RUN Pennsylvania Fair 1916 110 30
Mill Creek Pennsylvania Poor 1916 110 817
CONESTOGA RIVER Pennsylvania Poor 1916 110 175
TWO MILE RUN Pennsylvania Fair 1916 110 100
MOUNTAIN RUN CREEK Pennsylvania Poor 1916 110 4,717
POCONO CREEK Pennsylvania Good 1916 110 1,474
SHAMOKIN CREEK Pennsylvania Fair 1916 110 1,600
WHITES CREEK Pennsylvania Poor 1916 110 25
MILLER RUN Pennsylvania Fair 1916 110 50
ROARING RUN Pennsylvania Fair 1916 110 50
JENNINGS RUN Pennsylvania Fair 1916 110 75
ZIMMERMAN CREEK Pennsylvania Fair 1916 110 40
RAPID RUN Pennsylvania Fair 1916 110 50
PETERS CREEK Pennsylvania Fair 1916 110 5,427
PIKE RUN Pennsylvania Poor 1916 110 1,392
PIGEON CREEK Pennsylvania Good 1916 110 100
INDIAN CREEK Pennsylvania Poor 1916 110 387
BUTTERMILK CREEK Pennsylvania Fair 1916 110 150
SO BRANCH CODORUS CREEK Pennsylvania Fair 1916 110 21
FOX RUN Pennsylvania Fair 1916 110 1,414
FRANKFORD CREEK Pennsylvania Fair 1916 110 10,849
SEPTA (CHESTNUT HILL W) Pennsylvania Fair 1916 110 13,160
CONRAIL Pennsylvania Poor 1916 110 3,200
SEPTA (Chestnut Hill W.) Pennsylvania Good 1916 110 5,600
LACKAWANNA RIVER Pennsylvania Fair 1916 110 170
SCHUYLKILL RIVER Pennsylvania Poor 1917 109 1,086
WILLOW CREEK Pennsylvania Fair 1917 109 472
INDIAN CORN CREEK Pennsylvania Poor 1917 109 200
NEWTOWN CREEK Pennsylvania Poor 1917 109 500
RAPP CREEK Pennsylvania Poor 1917 109 200
S BR SLIPPERY ROCK CR Pennsylvania Fair 1917 109 50
OVER DELMATER RUN Pennsylvania Fair 1917 109 2,040
OVER MUDDY CREEK Pennsylvania Poor 1917 109 373
NS RAILROAD Pennsylvania Poor 1917 109 2,042
BR OF LITTLE REDSTONE CK Pennsylvania Fair 1917 109 3,196
OVER LOWER SHERIFF RUN Pennsylvania Fair 1917 109 139
WHITELEY CREEK Pennsylvania Poor 1917 109 97
BRANCH OF WHITELEY CREEK Pennsylvania Fair 1917 109 203
GREAT TROUGH CREEK Pennsylvania Poor 1917 109 24
DEL-LACK RR/ROARING BRK Pennsylvania Poor 1917 109 2,000
MILL CREEK Pennsylvania Poor 1917 109 300
MILL CREEK Pennsylvania Poor 1917 109 150
POCONO NORTHEAST RR Pennsylvania Fair 1917 109 6,850
SCHUYLKILL CANAL Pennsylvania Fair 1917 109 12,713
LITTLE MARTINS CREEK Pennsylvania Fair 1917 109 200
E. BR. WALLENPAUPACK CK. Pennsylvania Fair 1917 109 150
MILL CREEK Pennsylvania Poor 1917 109 1,781

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.