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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
AMTRAK(NE CORRI);CONRAIL Pennsylvania Good 1918 108 9,200
Indian Creek Pennsylvania Poor 1918 108 800
BIG SEWICKLEY CREEK Pennsylvania Fair 1919 107 119
SUGAR CREEK Pennsylvania Fair 1919 107 2,748
SUGAR CREEK Pennsylvania Fair 1919 107 2,748
PANTHERLICK CREEK Pennsylvania Fair 1919 107 735
HOLLOW RUN Pennsylvania Good 1919 107 3,045
TRIB. TO TOWANDA CREEK Pennsylvania Fair 1919 107 1,795
TRIB. TO TOWANDA CREEK Pennsylvania Fair 1919 107 1,876
HICKORY RUN Pennsylvania Fair 1919 107 1,198
TINICUM CREEK Pennsylvania Poor 1919 107 260
POQUESSING CREEK Pennsylvania Fair 1919 107 50
AMTRAK Pennsylvania Poor 1919 107 400
TRIB TO S BR BEAR CREEK Pennsylvania Fair 1919 107 226
LITTLE ELK CREEK Pennsylvania Fair 1919 107 524
TRIB TO DOE RUN Pennsylvania Fair 1919 107 150
BEAVER CREEK Pennsylvania Fair 1919 107 6,248
INDIAN RUN Pennsylvania Fair 1919 107 103
MOOSE CREEK Pennsylvania Fair 1919 107 224
LITTLE CLEARFIELD CREEK Pennsylvania Poor 1919 107 5
PAXTON CREEK Pennsylvania Fair 1919 107 50
CHESTER CREEK Pennsylvania Fair 1919 107 335
DARBY CREEK Pennsylvania Good 1919 107 17,327
BR OF LITTLE REDSTONE CK Pennsylvania Poor 1919 107 4,053
OVER TIONESTA CREEK Pennsylvania Poor 1919 107 275
Norfolk Southern Railway Pennsylvania Fair 1919 107 554
SOUTH FORK TENMILE CREEK Pennsylvania Fair 1919 107 20
MUDDY RUN Pennsylvania Fair 1919 107 50
SMITH CREEK Pennsylvania Poor 1919 107 41
PA FORK OF DUNKARD CREEK Pennsylvania Poor 1919 107 20
BROWNS CREEK Pennsylvania Poor 1919 107 20
BATES FORK Pennsylvania Poor 1919 107 20
CLAWSON RUN CREEK Pennsylvania Fair 1919 107 150
TRIB TO CONEMAUGH RIVER Pennsylvania Fair 1919 107 994
MARDIS RUN Pennsylvania Poor 1919 107 170
DELAWARE CREEK Pennsylvania Fair 1919 107 400
DELAWARE CREEK Pennsylvania Poor 1919 107 400
INDIAN CREEK Pennsylvania Poor 1919 107 70
BIG WAPWALLOPEN CREEK Pennsylvania Poor 1919 107 1,439
W. BR. LITTLE MUNCY CRK. Pennsylvania Poor 1919 107 40
TROUT RUN Pennsylvania Poor 1919 107 108
GERMAN RUN Pennsylvania Fair 1919 107 40
LICK RUN Pennsylvania Fair 1919 107 50
DRY CREEK Pennsylvania Fair 1919 107 834
MILL CREEK Pennsylvania Fair 1919 107 390
MCMICHAELS CREEK Pennsylvania Poor 1919 107 2,521
UNAMI CREEK Pennsylvania Poor 1919 107 51
EAST BR CHILLISQUAQUE CR Pennsylvania Poor 1919 107 38
TRIB SHERMANS CREEK Pennsylvania Poor 1919 107 705
MILL CREEK Pennsylvania Poor 1919 107 300

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.

All Bridges Poor Condition Scour Critical Bridge Stats