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
PINE RUN Pennsylvania Fair 1934 92 3,949
BR.LITTLE TRAVERSE CREEK Pennsylvania Fair 1934 92 474
LITTLE SERVICE RUN Pennsylvania Good 1934 92 342
RAYSTOWN BR.JUNIATA RIV. Pennsylvania Fair 1934 92 3,829
TRIB.TO MOSELEM CREEK Pennsylvania Fair 1934 92 29,775
CACOOSING CREEK Pennsylvania Fair 1934 92 16,737
TRIB LITTLE SWATARA CK Pennsylvania Fair 1934 92 2,801
STONY RUN Pennsylvania Fair 1934 92 199
TRIB.TO WILLOW CREEK Pennsylvania Poor 1934 92 2,237
LITTLE LEHIGH CREEK Pennsylvania Fair 1934 92 302
TRIB TO IRONSTONE CREEK Pennsylvania Poor 1934 92 1,675
TRIB.TO SPRING CREEK Pennsylvania Fair 1934 92 2,087
LAUREL CREEK Pennsylvania Fair 1934 92 3,032
IRONSTONE CREEK Pennsylvania Poor 1934 92 100
TRIB.TO MAIDEN CREEK Pennsylvania Fair 1934 92 300
WILLOW CREEK Pennsylvania Poor 1934 92 424
BRUSH RUN Pennsylvania Fair 1934 92 2,012
MILL RUN Pennsylvania Good 1934 92 889
TRIB TO SUGAR CREEK Pennsylvania Fair 1934 92 725
TRIBUTARY BENTLEY CREEK Pennsylvania Good 1934 92 547
BR W BR NESHAMINY CREEK Pennsylvania Poor 1934 92 45,881
BRANCH LITTLE NESHAMINY Pennsylvania Poor 1934 92 3,559
GLADE RUN Pennsylvania Fair 1934 92 20,253
SULLIVAN RUN Pennsylvania Fair 1934 92 300
CHEST CREEK Pennsylvania Good 1934 92 519
HAYES CREEK Pennsylvania Good 1934 92 1,971
LOGAN BRANCH Pennsylvania Poor 1934 92 14,674
DEWITT RUN Pennsylvania Fair 1934 92 254
BEAVER CREEK Pennsylvania Poor 1934 92 11,422
MIDDLE BR WHITE CLAY CR Pennsylvania Fair 1934 92 7,252
DOE RUN Pennsylvania Fair 1934 92 636
BLACKBURN RUN Pennsylvania Fair 1934 92 7
STONY RUN Pennsylvania Good 1934 92 499
ALLEGHENY RIV/ABAND RR Pennsylvania Fair 1934 92 1,887
POTTS RUN Pennsylvania Fair 1934 92 436
MUDDY RUN Pennsylvania Fair 1934 92 411
GAZZAM RUN Pennsylvania Fair 1934 92 779
LAUREL RUN Pennsylvania Fair 1934 92 6,024
PENNA CANAL Pennsylvania Fair 1934 92 14,443
REEDS RUN Pennsylvania Fair 1934 92 1,259
DRURY RUN Pennsylvania Fair 1934 92 20
OVER WEST CREEK Pennsylvania Fair 1934 92 556
MUD RUN Pennsylvania Fair 1934 92 191
OVER FISHING CREEK Pennsylvania Fair 1934 92 443
OVER FRENCH CREEK Pennsylvania Poor 1934 92 2,893
OVER OIL CREEK E BRANCH Pennsylvania Fair 1934 92 2,885
OVER SHENANGO RIVER TRIB Pennsylvania Fair 1934 92 957
OVER PYMATUNING RES Pennsylvania Fair 1934 92 939
OVER INLET CREEK Pennsylvania Poor 1934 92 2,904
OVER LINESVILLE CREEK Pennsylvania Poor 1934 92 250

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.