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
B STREET TO D STREET-SR7 Washington Fair 1947 79 4,617
FISHTRAP CREEK Washington Fair 1947 79 6,187
UNION PACIFIC RR Washington Good 1947 79 285
WINCHESTER WASTEWAY Washington Good 1948 78 5
ROCKY COULEE DIVERSION Washington Fair 1948 78 1
ROCKY COULEE DRAIN WASTE Washington Fair 1948 78 5
COLUMBIA RIVER Washington Poor 1948 78 904
COWLITZ RIVER Washington Fair 1948 78 2,712
ALDER CREEK Washington Good 1948 78 5,888
WANITY SLOUGH Washington Good 1948 78 6,219
WAPATO CANAL Washington Fair 1948 78 8,427
COAL CREEK Washington Fair 1948 78 785
SOL DUC RIVER Washington Fair 1948 78 2,881
SOL DUC RIVER Washington Fair 1948 78 2,881
FRENCH CREEK Washington Fair 1948 78 25,899
FARM RD & DRAIN DITCH Washington Good 1948 78 25,899
SIWASH CREEK Washington Good 1948 78 4,282
MASHEL RIVER Washington Fair 1948 78 1,758
CRAB CREEK Washington Poor 1948 78 377
JOHNS CREEK Washington Fair 1948 78 15,751
COAL CREEK Washington Good 1948 78 9,612
WISEMAN CREEK Washington Good 1948 78 9,612
OVERFLOW CHANNEL NO 2 Washington Poor 1948 78 10,027
SMITH CREEK Washington Good 1948 78 9,227
SMITH CREEK Washington Good 1948 78 9,227
MCCAULEY CR Washington Good 1948 78 9,227
MCCAULEY CREEK Washington Good 1948 78 8,427
CANYON CREEK Washington Poor 1948 78 207
W FK HUMPTULIPS RIVER Washington Fair 1948 78 150
GALE CREEK Washington Good 1948 78 50
NORTH FORK ENTIAT RIVER Washington Fair 1948 78 100
TUCK CREEK Washington Fair 1948 78 10,564
DUVALL SLOUGH Washington Fair 1948 78 10,564
DUVALL SLOUGH Washington Fair 1948 78 10,564
DUVALL SLOUGH Washington Fair 1948 78 10,564
DRY CREEK Washington Fair 1948 78 5,280
OVERFLOW CHANNEL Washington Fair 1948 78 13,497
PILCHUCK R. Washington Fair 1948 78 13,468
CHILDS CREEK Washington Fair 1948 78 525
CHEHALIS RIVER Washington Poor 1948 78 144
MAGUIRE GULCH Washington Fair 1948 78 412
CHARLEY CREEK Washington Fair 1948 78 20
LATAH CREEK Washington Fair 1948 78 563
BUTLER SLOUGH Washington Poor 1948 78 209
TOPPENISH CREEK Washington Fair 1948 78 140
BN RR MAIN LINE Washington Fair 1948 78 8,491
RAVINE Washington Fair 1948 78 160
COAL CREEK Washington Good 1948 78 518
CAPITOL LAKE Washington Fair 1948 78 19,640
JIM CREEK Washington Fair 1949 77 20

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.