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
WEBSTER RUN Pennsylvania Fair 1910 116 59
TENMILE CREEK Pennsylvania Poor 1910 116 1
ROBERTS RUN Pennsylvania Fair 1910 116 100
CROOKED CREEK Pennsylvania Fair 1910 116 50
Richards Run Pennsylvania Fair 1910 116 150
MILL RUN Pennsylvania Fair 1910 116 50
NORFOLK AND SOUTHERN RR Pennsylvania Good 1910 116 5,419
CONOY CREEK Pennsylvania Fair 1910 116 5,680
RR ABANDONED Pennsylvania Fair 1910 116 16,440
COPLAY CREEK Pennsylvania Fair 1910 116 11,880
ONTELAUNEE CREEK Pennsylvania Poor 1910 116 200
KITCHEN CREEK Pennsylvania Fair 1910 116 55
HUNTINGTON CREEK Pennsylvania Poor 1910 116 55
MILL CREEK Pennsylvania Fair 1910 116 1,400
BENNETT BROOK Pennsylvania Fair 1910 116 4,775
W BR TUNUNGWANT CREEK Pennsylvania Poor 1910 116 150
IRISH HOLLOW CREEK Pennsylvania Fair 1910 116 200
POTATO CREEK Pennsylvania Fair 1910 116 40
OVER BIG RUN TRIB Pennsylvania Poor 1910 116 741
MUNNELL RUN Pennsylvania Poor 1910 116 951
JACKS CREEK Pennsylvania Fair 1910 116 50
POHOPOCO CREEK Pennsylvania Fair 1910 116 1,357
MCMICHAEL CREEK Pennsylvania Poor 1910 116 1,114
MARSHALL CREEK Pennsylvania Poor 1910 116 100
UNAMI CREEK Pennsylvania Fair 1910 116 320
SPROGELS RUN Pennsylvania Poor 1910 116 14,340
WISSAHICKON CREEK Pennsylvania Fair 1910 116 1,944
SAW MILL RUN Pennsylvania Fair 1910 116 3,300
SEPTA LEASED TO PN Pennsylvania Fair 1910 116 300
HOKENDAUQUA CREEK Pennsylvania Poor 1910 116 30
LITTLE BUSHKILL CREEK Pennsylvania Fair 1910 116 200
SLATEFORD CREEK Pennsylvania Fair 1910 116 200
LEHIGH CANAL + NORFORK Pennsylvania Poor 1910 116 80
MAHANOY CREEK Pennsylvania Poor 1910 116
SHAMOKIN CREEK Pennsylvania Fair 1910 116 2,900
LIMESTONE RUN Pennsylvania Fair 1910 116 4,900
SHERMANS CREEK Pennsylvania Poor 1910 116 117
LUDINGTON RUN Pennsylvania Fair 1910 116 92
OSWAYO CREEK Pennsylvania Good 1910 116 50
MAHANOY CREEK Pennsylvania Poor 1910 116 20
BRUSH CREEK Pennsylvania Poor 1910 116 34
LAUREL HILL CREEK Pennsylvania Good 1910 116 96
BEAVER DAM CREEK Pennsylvania Fair 1910 116 50
SANDY RUN Pennsylvania Fair 1910 116 25
EAST BR. TUNKHANNOCK CR. Pennsylvania Poor 1910 116 20
OVER LITTLE SUGAR CREEK Pennsylvania Poor 1910 116 200
OVER TIDIOUTE CREEK Pennsylvania Fair 1910 116 376
OVER CALDWELL CREEK Pennsylvania Poor 1910 116 75
OVER SPRING CREEK Pennsylvania Poor 1910 116 50
LITTLE DANIELS RUN Pennsylvania Poor 1910 116 1,745

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.