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 77 200
PA TPK (I-76) Pennsylvania Fair 1949 77 200
T-750 COCALICO CR Pennsylvania Fair 1949 77 24,971
PA TPK (I-76) Pennsylvania Fair 1949 77 300
LNRR L.COCALICO CR Pennsylvania Fair 1949 77 24,971
LR 36129 SR 1055 Pennsylvania Fair 1949 77 24,971
STONY RUN Pennsylvania Fair 1949 77 24,971
PA TPK (I-76) Pennsylvania Fair 1949 77 16,241
PA TPK (I-76) Pennsylvania Fair 1949 77 49
LITTLE MUDDY CREEK Pennsylvania Fair 1949 77 33,608
PA TPK (I-76) Pennsylvania Fair 1949 77 200
BR. MUDDY CR. Pennsylvania Fair 1949 77 36,390
SR 0625 LR 518 Pennsylvania Fair 1949 77 33,608
MUDDY CREEK Pennsylvania Fair 1949 77 33,608
T-884 Pennsylvania Good 1949 77 33,608
TRIB. TO BLACK CREEK Pennsylvania Fair 1949 77 33,608
PA TPK (I-76) Pennsylvania Fair 1949 77 200
PA TPK (I-76) Pennsylvania Fair 1949 77 200
LR38033 SR3009 Pennsylvania Good 1949 77 24,423
Conewago Creek Pennsylvania Fair 1949 77 24,423
CONRAIL(ABAND.) Pennsylvania Good 1949 77 29,582
LR280 SR 0241 Pennsylvania Fair 1949 77 24,423
PA TPK (I-76) Pennsylvania Fair 1949 77 351
JORDAN CREEK Pennsylvania Fair 1949 77 16,540
COPLAY CREEK Pennsylvania Fair 1949 77 4,428
TRIB. TO LYON CREEK Pennsylvania Fair 1949 77 351
LYON CREEK Pennsylvania Fair 1949 77 351
LYON CREEK Pennsylvania Fair 1949 77 351
BEAR CREEK LAKE OUTLET Pennsylvania Fair 1949 77 7,426
BRANCH HUNLOCK CREEK Pennsylvania Poor 1949 77 206
LITTLE MUNCY CREEK Pennsylvania Fair 1949 77 2,058
BONNELL RUN Pennsylvania Fair 1949 77 637
OVER MILLERS RUN Pennsylvania Fair 1949 77 9,752
GERMAN RUN Pennsylvania Fair 1949 77 341
LITTLE MUNCY CREEK Pennsylvania Good 1949 77 187
LONGSHORE CREEK Pennsylvania Good 1949 77 1,700
LONGSHORE CREEK Pennsylvania Fair 1949 77 974
LONGSHORE CREEK Pennsylvania Poor 1949 77 974
BRANCH STONY CR/ 3255H08 Pennsylvania Fair 1949 77 23,491
SUNNYBROOK CREEK Pennsylvania Fair 1949 77 3,480
HOKENDAUQUA CREEK Pennsylvania Fair 1949 77 3,303
MONOCACY CREEK Pennsylvania Fair 1949 77 1,000
LITTLE SHAMOKIN CREEK Pennsylvania Poor 1949 77 2,336
OVER LITTLE SHAMOKIN CR. Pennsylvania Good 1949 77 2,907
OVER WARRIOR RUN Pennsylvania Fair 1949 77 448
OVER MUDDY RUN Pennsylvania Poor 1949 77 150
LAUREL RUN Pennsylvania Poor 1949 77 1,332
BIG BUFFALO CREEK Pennsylvania Poor 1949 77 855
ALLEGHENY RIVER Pennsylvania Fair 1949 77 7,298
CRYDER CREEK Pennsylvania Fair 1949 77 628

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.