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
GOOSE CREEK Washington Good 1931 95 3,715
MARION DRAIN CANAL Washington Good 1931 95 4,257
CEDAR CR Washington Fair 1931 95 1,151
HILINE CANAL Washington Fair 1931 95 249
HILINE CANAL Washington Fair 1931 95 201
SIDE HILL RAVINE Washington Fair 1931 95 730
HILINE CANAL Washington Fair 1931 95 794
HILINE CANAL Washington Fair 1931 95 158
WENATCHEE RIVER Washington Poor 1931 95 3,489
PUYALLUP RIVER Washington Fair 1931 95 7,250
FRENCHMAN SPRINGS Washington Good 1931 95 169
FRENCHMAN SPRINGS Washington Good 1931 95 169
HILINE CANAL Washington Good 1931 95 76
HILINE CANAL Washington Fair 1931 95 24
HILINE CANAL Washington Fair 1931 95 266
HILINE CANAL Washington Fair 1931 95 70
HILINE CANAL Washington Fair 1931 95 138
FRENCHMAN SPRINGS Washington Good 1931 95 169
HILINE CANAL Washington Fair 1931 95 137
BNSF RR Washington Poor 1931 95 7,700
BIG SOOS CREEK Washington Fair 1931 95 7,293
CMSTP&P RR A TO C STREE Washington Fair 1931 95 8,375
AIRPORT WAY S RR Washington Fair 1931 95 13,000
MERRILL & RING CREEK Washington Poor 1931 95 6,123
YAKIMA RIVER Washington Fair 1931 95 6,779
FRYINGPAN CREEK Washington Poor 1931 95 1,786
GREEN R Washington Fair 1932 94 11,364
LEWIS RIVER Washington Poor 1932 94 1,239
NACHES-SELAH CANAL Washington Good 1932 94 2,259
CEDAR CREEK Washington Fair 1932 94 5,851
RAILROAD Washington Fair 1932 94 5,851
BLACK RIVER Washington Fair 1932 94 7,629
YAKIMA RIVER Washington Fair 1932 94 13,121
NACHES RIVER Washington Fair 1932 94 24,488
LOWER WILSON CREEK Washington Fair 1932 94 1,474
N 38TH ST Washington Fair 1932 94 61,259
GREENWATER RIVER Washington Fair 1932 94 1,907
COWICHE CREEK Washington Good 1932 94 10,931
SKOKOMISH RIVER Washington Fair 1932 94 7,648
PADDEN CREEK Washington Fair 1932 94 10,799
SAN POIL RIVER Washington Fair 1932 94 406
SKYKOMISH R Washington Fair 1932 94 9,748
N 63RD ST Washington Fair 1932 94 33,359
Pend Oreille River Washington Fair 1932 94 705
SUMAS RIVER Washington Fair 1932 94 106
FIFTEEN MILE CREEK Washington Poor 1932 94 4,279
NORTH DEADMAN CREEK Washington Good 1932 94 140
SUMAS RIVER Washington Fair 1932 94 280
DRY HOLLOW Washington Fair 1932 94 36
DRY CREEK Washington Fair 1932 94 171

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.