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
COLUMBIA PLATEAU TRAIL Washington Good 1950 76 1,963
CLARKS CREEK Washington Fair 1950 76 4,850
TOKUL CREEK Washington Fair 1950 76 120
CLARKS CREEK Washington Fair 1950 76 4,850
SIGITOWITZ CREEK Washington Fair 1950 76 250
MID FK NEWAUKUM RIVER Washington Good 1950 76 248
RENDSLAND CREEK Washington Fair 1950 76 526
GREEN RIVER Washington Fair 1950 76 2,500
STEARNS CREEK Washington Fair 1950 76 235
DAKOTA CR Washington Fair 1950 76 808
W. FK. STEARNS CREEK Washington Fair 1950 76 235
DRY RELIEF Washington Fair 1950 76 2
BERTRAND CREEK Washington Good 1950 76 1,522
KETTLE RIVER Washington Fair 1950 76 235
SIMILKAMEEN RIVER Washington Fair 1950 76 985
BEAR CREEK Washington Fair 1950 76 135
SUMAS RIVER Washington Fair 1950 76 326
WIND RIVER Washington Good 1950 76 429
FISH TRAP CR Washington Good 1950 76 300
ROCK CREEK Washington Fair 1950 76 2,518
MULLEN SLOUGH Washington Fair 1950 76 1,600
RAVINE Washington Good 1950 76 1,150
CANAL Washington Fair 1950 76 1,531
NOOKSACK RIVER Washington Fair 1950 76 21,350
STOWE CREEK Washington Fair 1950 76 355
NEUMAN SL Washington Fair 1950 76 920
SOUTH FORK DAKOTA CR Washington Good 1950 76 1,500
Overflow Channel Washington Fair 1950 76 867
ALLEN CREEK Washington Fair 1950 76 230
OUTLET CREEK Washington Fair 1950 76 1,388
Irrigation canal Washington Fair 1950 76 36
Crab Creek Washington Fair 1950 76 36
CLOVER CREEK Washington Fair 1950 76 50
MUCK CREEK Washington Fair 1950 76 10
DRAINAGE CANAL Washington Fair 1950 76 200
MUCK CREEK Washington Good 1950 76 200
SEQUALITCHEW CREEK Washington Fair 1950 76 200
DRAINAGE CANAL Washington Fair 1950 76 100

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.