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
PA TPK (I-76) Pennsylvania Fair 1949 77 6,360
LITTLE WICONISCO CREEK Pennsylvania Fair 1949 77 243
LAUREL RUN Pennsylvania Fair 1949 77 29,356
T-380 Pennsylvania Fair 1949 77 26,550
T-333 Pennsylvania Fair 1949 77 24,423
IRON RUN Pennsylvania Fair 1949 77 24,423
LR22072 SR2002 Pennsylvania Fair 1949 77 24,423
LR22009 SR2007 Pennsylvania Good 1949 77 24,423
PA TPK (I-76) Pennsylvania Fair 1949 77 200
LR22007 PA 743 Pennsylvania Fair 1949 77 26,550
HOFFERS CREEK Pennsylvania Fair 1949 77 24,423
T-570 Pennsylvania Good 1949 77 24,423
CRUM CREEK Pennsylvania Fair 1949 77 14,523
WHISKEY RUN & SEPTA Pennsylvania Fair 1949 77 15,844
CHICHESTER ROAD/ 3805-H4 Pennsylvania Fair 1949 77 18,611
MARKET STREET / 3806-B5 Pennsylvania Fair 1949 77 32,167
CSX RAILROAD Pennsylvania Poor 1949 77 32,167
SEPTA Pennsylvania Poor 1949 77 23,431
LAUREL RUN Pennsylvania Fair 1949 77 3,617
IRON RUN Pennsylvania Fair 1949 77 4,741
SR 0051 Pennsylvania Good 1949 77 3,855
SPEERS RUN Pennsylvania Fair 1949 77 4,963
MOUNTS CREEK Pennsylvania Fair 1949 77 526
CRABAPPLE RUN Pennsylvania Good 1949 77 731
GRASSY RUN Pennsylvania Poor 1949 77 300
TRIB CONOCOCHEAGUE CR. Pennsylvania Fair 1949 77 14,284
Conococheague Creek Pennsylvania Poor 1949 77 437
MUDDY CREEK Pennsylvania Fair 1949 77 220
SR 1010 RR JUNIATA RIV Pennsylvania Fair 1949 77 9,540
WARRIORS MARK RUN Pennsylvania Fair 1949 77 925
HILL VALLEY CREEK Pennsylvania Fair 1949 77 2,380
PINE RUN Pennsylvania Fair 1949 77 174
HUNTERS CREEK Pennsylvania Fair 1949 77 3,498
LININGERS RUN Pennsylvania Fair 1949 77 776
LACKAWANNA RIVER Pennsylvania Poor 1949 77 6,870
LITITZ CREEK Pennsylvania Fair 1949 77 10,017
CHICKIES CREEK Pennsylvania Fair 1949 77 51,789
NORFOLK SOUTHERN Pennsylvania Fair 1949 77 69,254
MCCREARY RUN Pennsylvania Poor 1949 77 342
SHEARERS CREEK Pennsylvania Fair 1949 77 24,971
LR36002 SR1037 Pennsylvania Fair 1949 77 24,971
PA TPK (I-76) Pennsylvania Fair 1949 77 7,531
PA TPK (I-76) Pennsylvania Fair 1949 77 9,664
FURNACE RUN Pennsylvania Fair 1949 77 24,971
SEGLOCH RUN Pennsylvania Good 1949 77 24,971
PA TPK (I-76) Pennsylvania Fair 1949 77 200
PA TPK (I-76) Pennsylvania Fair 1949 77 200
T-648 Pennsylvania Fair 1949 77 24,971
PA TPK (I-76) Pennsylvania Fair 1949 77 200
PA TPK (I-76) Pennsylvania Fair 1949 77 200

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.