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
FORK CREEK Washington Good 1918 108 1,825
CRAB CREEK Washington Poor 1918 108 21
WAPATOX CANAL Washington Good 1918 108 318
SOUTH SLOUGH Washington Fair 1918 108 5,889
GREEN RIVER Washington Fair 1918 108 2,061
WAPATOX CANAL Washington Good 1918 108 260
SOUTH FORK PINE CREEK Washington Fair 1918 108 20
DRY WASH Washington Fair 1918 108 500
THOMSEN SLOUGH Washington Fair 1919 107 4,051
TOUCHET RIVER Washington Fair 1919 107 7,642
DRY RUN Washington Fair 1919 107 8,012
OHOP CREEK OVERFLOW Washington Fair 1919 107 85
OHOP CREEK Washington Fair 1919 107 85
S.V.I.D. CANAL Washington Poor 1919 107 400
LATAH CREEK Washington Fair 1919 107 9,669
CROWN Z MILL WATER DITCH Washington Fair 1919 107 4,231
W FK NOOKACHAMPS CR Washington Fair 1920 106 6,465
COVE CREEK Washington Fair 1920 106 866
SPRING FLAT CREEK Washington Poor 1920 106 9,093
SAMISH RIVER Washington Fair 1920 106 4,112
PATAHA CR Washington Poor 1920 106 1,889
HALF BRIDGE Washington Fair 1920 106 2,472
MUCK CREEK OVERFLOW Washington Fair 1920 106 11,031
MUCK CREEK Washington Fair 1920 106 11,031
HILLSIDE Washington Good 1920 106 2,472
DRY CREEK Washington Fair 1920 106 4,314
DRY RUN Washington Fair 1920 106 377
RED RIVER Washington Fair 1920 106 5,592
MUD FLAT CREEK Washington Fair 1920 106 65
RUSSELL CREEK Washington Fair 1920 106 2,595
SOUTH FORK COPPEI CR Washington Poor 1920 106 60
REBEL FLAT CREEK Washington Fair 1920 106 672
CASE INLET Washington Fair 1920 106 385
YELLOWHAWK CREEK Washington Fair 1920 106 1,795
CORBETT CREEK Washington Good 1920 106 18
INTERMITTENT STREAM Washington Fair 1920 106 407
FARRIER COULEE Washington Fair 1920 106 207
KAPOWSIN CREEK Washington Fair 1920 106 1,850
PESHASTIN CREEK Washington Fair 1920 106 428
PROVIDENCE COULEE Washington Fair 1920 106 279
UP RR Washington Fair 1920 106 113
NORTH FORK PALOUSE RIVER Washington Fair 1920 106 300
ASOTIN CREEK Washington Fair 1920 106 500
MILL CREEK Washington Poor 1920 106 1,970
MILL CREEK Washington Good 1920 106 5,139
LATAH CREEK Washington Good 1920 106 2,390
ROCK CREEK Washington Fair 1920 106 4,017
WHATCOM CREEK Washington Fair 1920 106 8,700
KANAKA CREEK Washington Fair 1920 106 72
BOULDER CREEK Washington Fair 1920 106 1

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.