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
Beaver Creek Overflow Oregon Fair 1940 86 3,512
JOHNSON CREEK Oregon Fair 1940 86 5,253
Cox Creek Oregon Fair 1940 86 6,722
SEQUOIA CREEK Oregon Fair 1940 86 19,662
IRRIGATION DITCH Oregon Fair 1940 86 481
C.O.I. NORTH CANAL Oregon Fair 1940 86 23,351
PLUM CREEK Oregon Poor 1940 86 15
SPILLWAY AT LAKE SELMAC Oregon Good 1940 86 1,792
POWELL CREEK Oregon Fair 1940 86 2,612
JUMPOFF JOE CREEK Oregon Fair 1940 86 2,871
JACKS CREEK Oregon Fair 1940 86 640
WOLF CREEK Oregon Fair 1940 86 3,071
COX CREEK Oregon Poor 1940 86 11,330
DEAD OX CANAL Oregon Good 1940 86 272
EASTON CANYON #4 Oregon Poor 1940 86 54
SEVENMILE CREEK Oregon Fair 1940 86 608
RAIL HOLLOW CREEK Oregon Fair 1940 86 871
ANTELOPE CREEK Oregon Fair 1940 86 31
DRY CREEK Oregon Fair 1940 86 33
Mt Scott Creek & UPRR Oregon Fair 1941 85 30,494
W FK Dairy Creek Oregon Good 1941 85 8,934
Hwy 102 Davies/PTB Oregon Fair 1941 85 8,934
LOST RIVER Oregon Fair 1941 85 5,002
Yaquina River Oregon Poor 1941 85 206
ROCK CR. (PICTURE GORGE) Oregon Fair 1941 85 814
CREEK Oregon Fair 1941 85 13,164
Deer Creek Oregon Fair 1941 85 16,492
Beaver Creek Oregon Fair 1941 85 3,512
TRIB. OF BEAVER CREEK Oregon Fair 1941 85 978
SMITH CREEK Oregon Fair 1941 85 460
FOX CREEK Oregon Fair 1941 85 479
MILL CREEK Oregon Poor 1941 85 770
MILL CREEK Oregon Fair 1941 85 715
MILL CREEK Oregon Fair 1941 85 625
GRIFFIN CR/SO. STAGE RD. Oregon Fair 1941 85 5,270
MILL CREEK Oregon Fair 1941 85 2,192
Squaw Creek Oregon Fair 1942 84 576
WRENN DOBBIN DITCH Oregon Poor 1942 84 940
Rogue River Oregon Fair 1942 84 7,259
South Fork Dairy Creek Oregon Good 1942 84 6,189
N Fork Necanicum River Oregon Fair 1942 84 5,133
MILL CREEK Oregon Good 1942 84 3,395
Dixion Creek Oregon Fair 1942 84 10,003
Dixion Creek Oregon Good 1942 84 9,617
WALKER CREEK Oregon Fair 1942 84 218
WHETSTONE CREEK Oregon Fair 1942 84 12,446
MALHEUR RIVER Oregon Fair 1942 84 77
LITTLE RIVER Oregon Fair 1943 83 290
COW CREEK Oregon Fair 1944 82 2,053
Schooner Creek Oregon Fair 1945 81 14,212

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.