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
BRANCH OF DANIEL RUN Pennsylvania Poor 1939 87 63
BANE CREEK Pennsylvania Fair 1939 87 169
SOUTH FORK OF CROSS CK. Pennsylvania Fair 1939 87 229
Fork of Bane Creek Pennsylvania Good 1939 87 100
Tenmile Creek Pennsylvania Good 1939 87 50
TINKERS RN CO RD ABND RR Pennsylvania Fair 1939 87 27,533
BRANCH OF BRUSH CREEK Pennsylvania Fair 1939 87 27,533
SR 3077 Pennsylvania Fair 1939 87 29,116
JACKS RUN Pennsylvania Fair 1939 87 22,297
SLATE CREEK Pennsylvania Poor 1939 87 2,056
BRANCH OF BRUSH RUN Pennsylvania Fair 1939 87 1,974
SR 0030 Pennsylvania Fair 1939 87 224
TR.SEWICKLEY CREEK Pennsylvania Fair 1939 87 34,735
SR 3093 Pennsylvania Fair 1939 87 32,982
PA TPK (I-76) Pennsylvania Good 1939 87 240
PA TPK (I-76) Pennsylvania Fair 1939 87 1,188
T-485 Slope Hill Rd Pennsylvania Fair 1939 87 34,232
BRUSH CREEK Pennsylvania Fair 1939 87 34,232
SR 2006 Mennonite Camp Pennsylvania Fair 1939 87 34,232
JACOBS CREEK Pennsylvania Fair 1939 87 34,232
JACOBS CREEK Pennsylvania Fair 1939 87 34,232
JACOBS CREEK Pennsylvania Good 1939 87 35,220
PA TPK (I-76) Pennsylvania Fair 1939 87 200
JACOBS CREEK Pennsylvania Fair 1939 87 34,232
PA TPK (I-76) Pennsylvania Fair 1939 87 2,341
PA TPK (I-76) Pennsylvania Poor 1939 87 387
ROARING RUN CREEK Pennsylvania Fair 1939 87 6,504
UNT To Fishing Creek Pennsylvania Fair 1939 87 1,907
KREUTZ CREEK Pennsylvania Good 1939 87 1,144
BRANCH OF DEER CREEK Pennsylvania Good 1939 87 374
SEPTA;CHESTNUT HILL BR. Pennsylvania Fair 1939 87 4,653
SPRAGUE STREET(ONE WAY) Pennsylvania Fair 1939 87 4,653
AMTRAK (NE CORRIDOR) Pennsylvania Good 1939 87 5,300
TRIB. TO MILL CREEK Pennsylvania Poor 1939 87 150
MILL CREEK Pennsylvania Fair 1939 87 50
LITTLE CONEWAGO CREEK Pennsylvania Fair 1940 86 1,832
SWIFT RUN Pennsylvania Fair 1940 86 1,832
ROCK CREEK Pennsylvania Poor 1940 86 667
TRIB ROCK CREEK Pennsylvania Poor 1940 86 667
OPOSSUM CREEK Pennsylvania Fair 1940 86 572
SPRING RUN Pennsylvania Fair 1940 86 450
MARKEL RUN Pennsylvania Poor 1940 86 500
BR.BRUSH RUN Pennsylvania Good 1940 86 26,458
SR 0019 Pennsylvania Fair 1940 86 762
SR 3004 MCMURRAY RD Pennsylvania Good 1940 86 30,066
PINE CREEK Pennsylvania Fair 1940 86 13,450
HOMESTEAD RUN Pennsylvania Poor 1940 86 13,386
MONTOUR RUN Pennsylvania Fair 1940 86 10,081
NS RR ALLEGH R AVR RR Pennsylvania Fair 1940 86 49,653
LITTLE DEER CREEK Pennsylvania Poor 1940 86 4,584

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.