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
N.FORK JOHN DAY RIVER Oregon Fair 1899 127 132
BARNUM CANYON Oregon Good 1900 126 74
Sun Creek Oregon Good 1900 126 10
B-15 X MACLEAY PARK Oregon Fair 1905 121 4,501
OWYHEE RIVER (ROME) Oregon Poor 1906 120 20
BONNEVILLE DAM Oregon Fair 1907 119 20
Hwy 2 & UPRR Oregon Fair 1908 118 35,800
B-27 OVER UPRR Oregon Fair 1908 118 6,578
UPRR & Hwy 002 Oregon Fair 1908 118 31,889
B-78 OVER BNRR Oregon Poor 1909 117 13,910
BNSF Oregon Poor 1909 117 14,374
BURLINGTON NORTHERN R&R Oregon Fair 1909 117 10,361
BURLINGTON NORTHERN R&R Oregon Poor 1909 117 4,931
WILLAMETTE RIVER Oregon Fair 1910 116 32,243
WILLAMETTE RIVER Oregon Poor 1910 116 11,732
STEEL BR. E. APPR. Oregon Fair 1910 116 11,732
B-25 X BANFIELD AND UPRR Oregon Fair 1910 116 15,347
NICE CREEK Oregon Poor 1911 115 732
ASHLAND CREEK Oregon Fair 1911 115 9,979
Sandy River Oregon Fair 1912 114 2,324
BEAVER CREEK Oregon Fair 1912 114 5,399
WILLAMETTE RIVER Oregon Fair 1912 114 30,871
B-26 OVER UPRR Oregon Fair 1912 114 13,624
Willamette River Oregon Poor 1913 113 12,687
BROADWAY ST CONN Oregon Poor 1913 113 30,388
MILL CREEK Oregon Fair 1913 113 2,921
MILL CREEK Oregon Fair 1913 113 13,876
MILL RACE CANAL Oregon Fair 1914 112 4,899
Bridal Veil Falls Oregon Fair 1914 112 1,107
Viaduct Oregon Poor 1914 112 901
Viaduct Oregon Fair 1914 112 901
EAGLE CREEK Oregon Fair 1914 112 85
West Beaver Creek Oregon Fair 1914 112 5,017
CORP OR 273 (Hwy 273) Oregon Fair 1914 112 196
CORP Oregon Fair 1914 112 196
Latouraell Creel Oregon Fair 1914 112 878
Shepperds Dell Oregon Fair 1914 112 815
Multnomah Creek Oregon Fair 1914 112 901
Horsetail Falls Oregon Fair 1914 112 901
WAGNER CR./TALENT AVE. Oregon Fair 1914 112 3,649
SANDY RIVER Oregon Poor 1914 112 6,445
COUCH LATERAL Oregon Good 1914 112 263
B-41 SEMI-VIADUCT Oregon Fair 1914 112 8,888
BEAR CREEK Oregon Fair 1914 112 5
EIGHTMILE CREEK Oregon Fair 1914 112 26
DRAW Oregon Fair 1915 111 6,555
B-81 OVER SW BERTHA BLVD Oregon Fair 1915 111 17,757
WILLOW CREEK EB Oregon Good 1915 111 277
B-88 X FILLED STREAMBED Oregon Good 1915 111 567
PRAIRIE CREEK Oregon Fair 1915 111 235

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.