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
OHOP CREEK Washington Fair 1900 126 7,615
EAST DEER CR Washington Fair 1900 126 645
LITTLE BOULDER CR Washington Fair 1900 126 358
MAPLE CREEK Washington Fair 1900 126 1,985
THUNDER CREEK Washington Fair 1900 126 3,684
BLACK SLOUGH Washington Good 1900 126 3,517
HALF BR STA 155 Washington Fair 1900 126 1,696
WIDE HOLLOW CREEK Washington Good 1900 126 14,180
TANWAX CR Washington Good 1900 126 7,089
DRY RELIEF Washington Fair 1900 126 10
INTERMITTENT STREAM Washington Fair 1900 126 17
IMBLER CREEK Washington Fair 1900 126 13
DUCK CREEK Washington Good 1900 126 10
RED RIVER Washington Fair 1900 126 11,365
DRY WASH Washington Fair 1900 126 26
DRY WASH Washington Fair 1900 126 8
CREEK Washington Good 1900 126 39
CRAB CREEK Washington Good 1900 126 11
INTERMITTENT STREAM Washington Fair 1900 126 80
DRY RELIEF Washington Fair 1900 126 1
DRAINAGE Washington Good 1900 126 15
MONARCH (WYMAN) CREEK Washington Good 1900 126 1,498
DRY WASH Washington Fair 1900 126 62
TEN MILE CR TRIB Washington Fair 1900 126 841
WILSON CREEK Washington Fair 1900 126 14
WELCH CREEK Washington Good 1900 126 379
FARRIER COULEE Washington Good 1900 126 25
FOUR MILE CREEK Washington Fair 1900 126 6
WILSON CREEK Washington Fair 1900 126 17
FOUR MILE CREEK Washington Fair 1900 126 30
DRY WASH Washington Fair 1900 126 9
CRAB CREEK Washington Good 1900 126 135
FOUR MILE CREEK Washington Fair 1900 126 10
NO NAME CREEK Washington Fair 1900 126 65
N 57TH ST Washington Fair 1900 126 12,400
MCCOY CREEK Washington Fair 1900 126 35
CREEK Washington Good 1900 126 500
DAN CREEK Washington Good 1900 126 3,479
CASCADE CANAL Washington Good 1900 126 2,702
OLSON CREEK Washington Fair 1900 126 25
Deep Creek Washington Fair 1900 126 209
MILL CREEK Washington Fair 1902 124 4,412
DAKOTA CR TRIB Washington Fair 1906 120 323
WENATCHEE RIVER Washington Fair 1907 119 363
KETTLE RIVER Washington Fair 1908 118 360
MILL CREEK Washington Poor 1908 118 2,624
4TH AVE S Washington Good 1909 117 8,000
SPOKANE RIVER Washington Fair 1909 117 19,319
RAVINE SOUTH OF BOONE AV Washington Fair 1909 117 159
SOUND TRANSIT TUNNEL Washington Fair 1910 116 22,000

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.