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
Second Street Pennsylvania Fair 1908 118 21,000
CONRAIL(Abandoned) Pennsylvania Fair 1908 118 2,800
Midvale Avenue Pennsylvania Fair 1908 118 400
BUFFALO CREEK Pennsylvania Fair 1908 118 721
SAW MILL RUN CREEK Pennsylvania Poor 1909 117 30
POTTER CREEK Pennsylvania Fair 1909 117 174
PERKIOMEN CREEK Pennsylvania Fair 1909 117 1,723
IRONSTONE CREEK Pennsylvania Fair 1909 117 100
MILL RUN Pennsylvania Good 1909 117 11,341
PINEY CREEK Pennsylvania Poor 1909 117 219
BEAVER CREEK Pennsylvania Poor 1909 117 200
POTTS RUN Pennsylvania Fair 1909 117 45
CONODOGUINET CREEK Pennsylvania Fair 1909 117 341
SR 0230 AMTRAK NSRC Pennsylvania Fair 1909 117 8,140
COBBS CREEK Pennsylvania Fair 1909 117 12,715
GEORGES CREEK Pennsylvania Poor 1909 117 25
FALLING SPRINGS CR Pennsylvania Fair 1909 117 8,162
SHANNON RUN Pennsylvania Fair 1909 117 40
SPRUCE CREEK Pennsylvania Fair 1909 117 350
MILL RUN Pennsylvania Poor 1909 117 50
COCALICO CREEK Pennsylvania Poor 1909 117 522
NESHANNOCK CREEK Pennsylvania Poor 1909 117 18,779
TRIB. OF NESCOPECK CREEK Pennsylvania Fair 1909 117 25
OVER CLARK RUN Pennsylvania Good 1909 117 431
Shenango River Pennsylvania Poor 1909 117 3,024
KISH. CREEK Pennsylvania Poor 1909 117
SCIOTO CREEK Pennsylvania Fair 1909 117 784
E. BR. CHILLISQUAQUE CK. Pennsylvania Good 1909 117 108
BEAVER RUN Pennsylvania Fair 1909 117 376
HOKENDAUQUA CREEK Pennsylvania Fair 1909 117 13,770
SLATEFORD CREEK Pennsylvania Poor 1909 117 2,941
HOKENDAUQUA CREEK Pennsylvania Fair 1909 117 100
MONOCACY CK RR CITY ST Pennsylvania Fair 1909 117 4,000
ZIMMERMAN CREEK Pennsylvania Poor 1909 117 50
CARLEY BROOK Pennsylvania Fair 1909 117 372
S BR CODORUS CREEK Pennsylvania Fair 1909 117 400
TACONY CREEK Pennsylvania Fair 1909 117 78,114
CONRAIL(BURIED) Pennsylvania Fair 1909 117 98,564
CONRAIL(TRACKS REMOVED) Pennsylvania Fair 1909 117 83,001
AMTRAK Pennsylvania Poor 1909 117 3,200
Former Crse Frankford Cr Pennsylvania Fair 1909 117 13,600
Former Crse Frankford Cr Pennsylvania Fair 1909 117 13,600
SEPTA Pennsylvania Fair 1909 117 2,000
BERMUDIAN CREEK Pennsylvania Fair 1910 116 124
SAW MILL RUN Pennsylvania Fair 1910 116 14,731
LITTLE DEER CREEK Pennsylvania Fair 1910 116 41
DIRTY CAMP RUN Pennsylvania Poor 1910 116 100
BUFFALO & PITTSBURG RR Pennsylvania Poor 1910 116 45
PINE RUN Pennsylvania Fair 1910 116 50
PATTERSON CREEK Pennsylvania Good 1910 116 50

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.