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
SCATTER CREEK Washington Fair 1923 103 5,042
SCATTER CREEK Washington Fair 1923 103 7,789
CALIFORNIA CR Washington Good 1923 103 643
MILL CREEK Washington Fair 1923 103 2,296
NISQUALLY RIVER Washington Poor 1923 103 250
MONTLAKE CUT Washington Fair 1924 102 55,497
COLUMBIA RIVER Washington Fair 1924 102 14,900
SELAH CREEK Washington Fair 1924 102 1,578
LMUMA CREEK Washington Fair 1924 102 1,374
KIMBALL CR Washington Fair 1924 102 11,531
HAMMA HAMMA RIVER Washington Fair 1924 102 2,911
HAMMA HAMMA RIVER Washington Good 1924 102 2,911
OYSTER CREEK Washington Fair 1924 102 2,472
ROSE CREEK Washington Good 1924 102 2,772
OVERFLOW CHANNEL Washington Fair 1924 102 301
OLEQUA CREEK Washington Poor 1924 102 215
PILCHUCK RIVER Washington Fair 1924 102 421
CALIFORNIA CR Washington Fair 1924 102 3,810
TEN MILE CR. Washington Fair 1924 102 1,192
TOWN DITCH Washington Poor 1924 102 1,825
TILTON RIVER Washington Poor 1924 102 117
HAMILTON CR-GREENLEAF SL Washington Fair 1924 102 299
MILL CREEK Washington Fair 1924 102 2,300
PATAHA CR Washington Fair 1925 101 680
OVERFLOW CHANNEL Washington Fair 1925 101 11,531
LAWTON CREEK Washington Good 1925 101 5,270
FINCH CREEK Washington Good 1925 101 4,585
LILLIWAUP R Washington Fair 1925 101 3,173
KIONA CREEK Washington Good 1925 101 4,795
WISHKAH RIVER Washington Poor 1925 101 16,009
SUND CREEK Washington Fair 1925 101 3,766
WHETSTONE CREEK Washington Good 1925 101 250
YAKIMA VALLEY CANAL Washington Good 1925 101 1,760
CANNAWAI CREEK Washington Good 1925 101 27
GUEMES CHANNEL Washington Fair 1925 101 500
INTERMITTENT STREAM Washington Fair 1925 101 28
PUYALLUP RIVER Washington Poor 1925 101 15,255
RAILROAD Washington Poor 1925 101 15,256
TERRAIN Washington Fair 1925 101 15,000
RAMP Washington Fair 1925 101 15,000
OLIVER CREEK Washington Fair 1926 100 4,795
FULTON CREEK Washington Fair 1926 100 2,667
SLOUGH Washington Fair 1926 100 10,063
SLOUGH Washington Fair 1926 100 11,627
SCATTER CREEK Washington Fair 1926 100 13,337
DUNCAN CR Washington Fair 1926 100 4,755
NEWAUKUM OVERFLOW Washington Fair 1926 100 3,427
NEWAUKUM OVERFLOW Washington Fair 1926 100 3,427
WESTSIDE DITCH Washington Fair 1926 100 959
DRY HOLLOW Washington Poor 1926 100 36

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.