Historic Bridges in Oregon

790 bridges built before 1951 in Oregon still in service today.

Bridges Built Before 1951

The United States has 790 bridges in Oregon 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
BULL RUN RIVER Oregon Poor 1926 100 865
SANDY RIVER Oregon Fair 1926 100 16,064
HWY 1 SB Oregon Fair 1926 100 1,940
B-36 OVER SW JEFFERSON Oregon Fair 1926 100 10,700
B-42 OVER SW TALBOT RD Oregon Fair 1926 100 4,371
MOSBY CREEK Oregon Fair 1926 100 363
YAQUINA RIVER Oregon Fair 1926 100 65
STOUT CREEK Oregon Fair 1926 100 265
MENDENHALL CREEK Oregon Fair 1926 100 104
ILLINOIS RIVER Oregon Fair 1926 100 273
WEST BURNSIDE APPROACH Oregon Fair 1927 99 60,407
EAST BURNSIDE APPROACH Oregon Fair 1927 99 58,691
ROGUE RIVER @ GOLD HILL Oregon Fair 1927 99 6,174
ROCKY CREEK Oregon Fair 1927 99 8,900
ANDERSON CREEK Oregon Fair 1927 99 8,038
ANDERSON CREEK Oregon Fair 1927 99 7,664
N. Fork Alsea River Oregon Fair 1927 99 1,633
Harris Road & WPRR Oregon Fair 1927 99 9,235
WATERS CREEK Oregon Fair 1927 99 7,878
SLATE CREEK Oregon Fair 1927 99 7,878
SLATE CREEK Oregon Fair 1927 99 7,878
BUTCHER KNIFE CREEK Oregon Fair 1927 99 7,878
Depoe Bay Oregon Fair 1927 99 11,116
UNION CREEK Oregon Fair 1927 99 1,642
EUCHRE CREEK Oregon Poor 1927 99 225
GULLY Oregon Fair 1927 99 14,607
B-82 X SW MULTNOMAH BLVD Oregon Fair 1927 99 12,976
DEER CREEK Oregon Fair 1927 99 12,061
MILL CREEK Oregon Fair 1927 99 15,001
B-90 OVER JOHNSON CREEK Oregon Fair 1927 99 16,718
BIRCH CREEK Oregon Fair 1927 99 82
Soapstone Creek Oregon Fair 1928 98 452
DEADWOOD CREEK Oregon Fair 1928 98 443
FOOTS CREEK Oregon Fair 1928 98 2,246
Beaver Creek Oregon Fair 1928 98 10,148
HUNTER CREEK Oregon Poor 1928 98 739
BLUE RIVER Oregon Fair 1928 98 1,427
LAKE CREEK Oregon Fair 1928 98 273
MILL CREEK Oregon Fair 1928 98 12,020
PRINGLE CREEK Oregon Fair 1928 98 21,752
PRINGLE CRK Oregon Good 1928 98 4,000
B RODGERS CREEK Oregon Fair 1928 98 630
LUCKIAMUTE RIVER Oregon Fair 1928 98 332
UMATILLA RIVER Oregon Fair 1928 98 96
DRY CREEK Oregon Poor 1928 98 9
Beaver Creek Oregon Fair 1929 97 23,127
South Yamhill River Oregon Fair 1929 97 2,224
N POWDER R (BIDWELL LANE Oregon Fair 1929 97 53
FOURMILE CREEK Oregon Fair 1929 97 5,551
Gnat Creek Oregon Fair 1929 97 6,811

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.