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
HAMMER CREEK Pennsylvania Fair 1930 96 11,455
FURNACE RUN Pennsylvania Poor 1930 96 9,664
MUDDY CREEK Pennsylvania Poor 1930 96 5,968
CALAMUS RUN Pennsylvania Fair 1930 96 4,197
HAMMER CREEK Pennsylvania Poor 1930 96 370
LITTLE CONESTOGA CREEK Pennsylvania Poor 1930 96 620
LITITZ RUN Pennsylvania Poor 1930 96 775
LITTLE CONESTOGA CREEK Pennsylvania Poor 1930 96 520
W BR DONEGAL CREEK Pennsylvania Poor 1930 96 310
MILL CREEK Pennsylvania Poor 1930 96 620
HOTTENBAUGH RUN Pennsylvania Poor 1930 96 3,416
L BEAVER CRK NORTH FORK Pennsylvania Poor 1930 96 100
E BR OF HAMMER CREEK Pennsylvania Fair 1930 96 879
TRIB SWATARA CRK. Pennsylvania Fair 1930 96 200
TRIB SWATARA CREEK Pennsylvania Fair 1930 96 200
OWL RUN Pennsylvania Fair 1930 96 500
STREAM TRIB TO MILL CR. Pennsylvania Poor 1930 96 50
TULPEHOCKEN CREEK Pennsylvania Fair 1930 96 150
SNITZ CREEK Pennsylvania Fair 1930 96 450
ONTELAUNEE CREEK Pennsylvania Fair 1930 96 9,244
KISTLER CREEK Pennsylvania Fair 1930 96 277
LEHIGH RIVER & N/S RR Pennsylvania Fair 1930 96 9,562
SWITZER CREEK Pennsylvania Poor 1930 96 1,641
TRIB. TO LYON CREEK Pennsylvania Fair 1930 96 1,946
NORFOLK SOUTHERN RR Pennsylvania Fair 1930 96 1,500
MILL CREEK Pennsylvania Fair 1930 96 16,498
BLACK CREEK Pennsylvania Fair 1930 96 470
BRANCH HUNLOCK CREEK Pennsylvania Good 1930 96 206
BALLIET RUN Pennsylvania Fair 1930 96 854
SUSQUEHANNA RIVER Pennsylvania Fair 1930 96 250
OVER FROZEN RUN Pennsylvania Fair 1930 96 2,779
LYCOMING CREEK Pennsylvania Good 1930 96 2,779
OVER LYCOMING CREEK Pennsylvania Good 1930 96 2,779
OVER GREGGS CREEK Pennsylvania Fair 1930 96 3,914
OVER SUGAR RUN Pennsylvania Fair 1930 96 3,914
OVER SUGAR RUN Pennsylvania Fair 1930 96 3,441
BROAD RUN Pennsylvania Fair 1930 96 505
OVER TR OF LITTLE PINE C Pennsylvania Good 1930 96 143
TRIB TO LITTLE PINE CR. Pennsylvania Good 1930 96 143
MILL CREEK Pennsylvania Fair 1930 96 80
ENGLISH RUN Pennsylvania Poor 1930 96 52
MOSQUITO CREEK Pennsylvania Fair 1930 96 51
PENNBROOK RUN Pennsylvania Fair 1930 96 1,044
PENNBROOK RUN Pennsylvania Poor 1930 96 1,044
SINNEMAHONING PORTAGE CR Pennsylvania Fair 1930 96 40
OVER OTTER CREEK TRIB Pennsylvania Fair 1930 96 2,222
OVER WOLF CREEK TRIB Pennsylvania Poor 1930 96 3,657
OVER BUTCHERY RUN Pennsylvania Fair 1930 96 1,686
TEA CREEK Pennsylvania Fair 1930 96 5,997
COFFEE RUN Pennsylvania Fair 1930 96 300

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.