Historic Bridges in Washington

1,188 bridges built before 1951 in Washington still in service today.

Bridges Built Before 1951

The United States has 1,188 bridges in Washington 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
CLOQUALLUM CREEK Washington Fair 1937 89 7,669
MOX CHEHALIS CREEK Washington Fair 1937 89 5,851
PORTER CREEK Washington Fair 1937 89 5,851
GIBSON CREEK Washington Fair 1937 89 5,851
PALOUSE RIVER Washington Poor 1937 89 3,094
SHEEP CREEK Washington Fair 1937 89 624
KLICKITAT CREEK Washington Good 1937 89 6,548
E FORK LEWIS RIVER Washington Fair 1937 89 167
CLOVER CREEK Washington Fair 1937 89 17,440
YAKIMA RIVER Washington Fair 1937 89 537
CLOVER CREEK Washington Fair 1937 89 6,325
PERRY CREEK Washington Good 1937 89 587
SQUALLY CREEK Washington Good 1937 89 625
ROZA CANAL Washington Good 1937 89 1,500
MASHEL RIVER Washington Fair 1937 89 2,900
CARBON RIVER Washington Poor 1937 89 100
CANYON CR Washington Fair 1937 89 418
PACIFIC TO A ST Washington Poor 1937 89 4,700
DIVISION CREEK Washington Fair 1937 89 2,080
SQUALLICUM CRK-CMSTP&P R Washington Fair 1937 89 6,400
ROSLYN CR Washington Fair 1938 88 5,966
PALOUSE RIVER Washington Fair 1938 88 3,048
MILL CREEK Washington Fair 1938 88 7,862
W FK SKAMOKAWA CR Washington Fair 1938 88 1,255
GRAYS RIVER Washington Fair 1938 88 1,152
TERRAIN FLOOD PLAIN Washington Fair 1938 88 1,152
CNTRY RD KLINTS SLOUGH Washington Fair 1938 88 1,152
KLINTS SLOUGH Washington Fair 1938 88 1,152
S FK SKYKOMISH RIVER Washington Fair 1938 88 6,019
ROCK CR Washington Fair 1938 88 6,440
NP RY Washington Good 1938 88 7,064
COLUMBIA R PUGET ISLAND Washington Fair 1938 88 1,973
UNION FLAT CREEK Washington Good 1938 88 2,316
PALOUSE RIVER Washington Poor 1938 88 3,246
CALAWAH RIVER Washington Fair 1938 88 5,775
RR & CITY STREETS Washington Fair 1938 88 18,250
SLIDE AREA Washington Fair 1938 88 1,283
LITTLE QUILCENE RIVER Washington Fair 1938 88 2,792
S FK TILTON RIVER Washington Poor 1938 88 2,625
WEBER COULEE Washington Good 1938 88 94
CLOVER CREEK Washington Good 1938 88 16,705
FARRIER COULEE Washington Fair 1938 88 57
WEBER COULEE Washington Good 1938 88 66
DRY WASH Washington Fair 1938 88 143
MATNEY CREEK Washington Fair 1938 88 807
BERTRAND CR Washington Fair 1938 88 1,839
PARKE CREEK Washington Fair 1938 88 311
DRY WASH Washington Fair 1938 88 14
WEBER COULEE Washington Fair 1938 88 41
BAUER COULEE Washington Fair 1938 88 53

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.