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
Berry Creek Oregon Fair 1923 103 8,275
Soap Creek Oregon Fair 1923 103 8,275
EIGHTMILE CREEK Oregon Fair 1923 103 75
BEAR CREEK Oregon Fair 1923 103 490
MCKAY CREEK Oregon Fair 1923 103 298
GRANDE RONDE R AND UPRR Oregon Good 1924 102 9
Lewis & Clark River Oregon Poor 1924 102 6,367
MYERS CREEK Oregon Fair 1924 102 130
TUALATIN RIVER Oregon Fair 1924 102 8,728
DWIGHT CREEK Oregon Fair 1924 102 3,436
BR OF THE GODS Oregon Fair 1924 102 5,208
CRIPPLE CREEK Oregon Fair 1924 102 24
EAST FORK HOOD RIVER Oregon Fair 1924 102 50
COLUMBIA RIVER Oregon Poor 1924 102 14,227
B-16 OVER UPRR Oregon Fair 1924 102 23,355
NECANICUM RV Oregon Poor 1924 102 7,315
JOHN DAY R(MOON CR BR) Oregon Fair 1924 102 29
B-77 SEMI-VIADUCT Oregon Fair 1924 102 11,101
COW CREEK Oregon Fair 1924 102 62
WILDHORSE CREEK Oregon Fair 1924 102 200
SPRING CREEK Oregon Fair 1924 102 162
PINE CREEK Oregon Fair 1924 102 293
WILDHORSE CREEK Oregon Fair 1924 102 562
SCOGGINS CR OFLOW Oregon Fair 1924 102 536
UPRR AND MEACHAM CRK Oregon Poor 1925 101 115
Willamette River Oregon Fair 1925 101 10,393
UMATILLA RIVER(UMATILLA) Oregon Fair 1925 101 8,349
WILLOW CREEK Oregon Fair 1925 101 5,056
MORTON CREEK Oregon Fair 1925 101 5,197
Willamette River Oregon Fair 1925 101 16,759
15 MILE CREEK Oregon Fair 1925 101 252
EAGLE CRK (RICHLAND) Oregon Fair 1925 101 712
POWDER RIVER MADISON AVE Oregon Fair 1925 101 1,552
POWDER RIVER/VALLEY AVE Oregon Fair 1925 101 1,223
OAK CR Oregon Fair 1925 101 9,000
MILTON CREEK Oregon Fair 1925 101 340
MYRTLE CREEK Oregon Fair 1925 101 138
SOUTH UMPQUA RIVER Oregon Fair 1925 101 364
WILDCAT CREEK Oregon Fair 1925 101 81
RHEA CREEK Oregon Fair 1925 101 36
GRANDE RONDE RIVER Oregon Poor 1925 101 173
WILLAMETTE RIVER Oregon Fair 1926 100 35,000
CHAPMAN CREEK Oregon Fair 1926 100 1,137
RIVERSIDE CANYON Oregon Fair 1926 100 14,839
REEVES CREEK Oregon Fair 1926 100 8,286
HOLTON CREEK Oregon Fair 1926 100 10,152
Nehalem River Oregon Fair 1926 100 1,592
LINK RIVER Oregon Fair 1926 100 3,241
Rock Creek Oregon Fair 1926 100 2,352
Willamette River/OPRR Oregon Fair 1926 100 46,572

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.