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.
| Bridge | State | Condition | Year Built | Age (Years) | ADT |
|---|---|---|---|---|---|
| TRAIL - MARY AVE NW | Washington | Fair | 1928 | 98 | 1,000 |
| VAN TRUMP CREEK | Washington | Fair | 1928 | 98 | 1,800 |
| THAMES CREEK/PED TRAIL | Washington | Fair | 1929 | 97 | 3,869 |
| JOES CREEK | Washington | Fair | 1929 | 97 | 3,913 |
| WENATCHEE RIVER | Washington | Poor | 1929 | 97 | 8,705 |
| COLUMBIA IRR DIST CANAL | Washington | Fair | 1929 | 97 | 2,000 |
| SMITH CREEK | Washington | Fair | 1929 | 97 | 4,478 |
| ELKHORN CR | Washington | Fair | 1929 | 97 | 4,478 |
| CLOVER CREEK | Washington | Fair | 1929 | 97 | 31,999 |
| METHOW RIVER | Washington | Poor | 1929 | 97 | 4,683 |
| COLUMBIA R @ LONGVIEW | Washington | Fair | 1929 | 97 | 20,432 |
| SALMON CR | Washington | Fair | 1929 | 97 | 4,290 |
| N FK SKOKOMISH RIVER | Washington | Fair | 1929 | 97 | 50 |
| ROCKY COULEE | Washington | Poor | 1929 | 97 | 20 |
| N PINE CREEK WIR RR | Washington | Poor | 1929 | 97 | 888 |
| KIMBALL CREEK | Washington | Fair | 1929 | 97 | 398 |
| COLVILLE RIVER | Washington | Fair | 1929 | 97 | 251 |
| JENKINS CREEK | Washington | Fair | 1929 | 97 | 15,015 |
| PUYALLUP RIVER | Washington | Fair | 1929 | 97 | 6,100 |
| MARINA PL RR RAVINE | Washington | Poor | 1929 | 97 | 18,000 |
| DEER CRK-DEER PRK RESERV | Washington | Fair | 1929 | 97 | 1,950 |
| PAUL CREEK | Washington | Fair | 1929 | 97 | 30 |
| DEADWOOD CREEK | Washington | Fair | 1929 | 97 | 1,786 |
| DEXTER WAY N | Washington | Fair | 1930 | 96 | 28,629 |
| LACAMAS LAKE | Washington | Poor | 1930 | 96 | 11,155 |
| CAPE HORN SLIDE | Washington | Fair | 1930 | 96 | 4,879 |
| COAL CREEK | Washington | Poor | 1930 | 96 | 2,494 |
| ABERNATHY CREEK | Washington | Fair | 1930 | 96 | 4,787 |
| CUSHMAN TAILRACE | Washington | Fair | 1930 | 96 | 7,356 |
| ROCK CR NP RY-ABANDONED | Washington | Fair | 1930 | 96 | 1,600 |
| HAND DRAIN DITCH | Washington | Fair | 1930 | 96 | 1,686 |
| DRY CR | Washington | Fair | 1930 | 96 | 1,686 |
| DRAIN CANAL | Washington | Good | 1930 | 96 | 4,571 |
| PATTERSON CREEK | Washington | Fair | 1930 | 96 | 7,187 |
| KALALOCH CREEK | Washington | Fair | 1930 | 96 | 1,079 |
| TEANAWAY RIVER | Washington | Poor | 1930 | 96 | 1,338 |
| SWAUK CR | Washington | Poor | 1930 | 96 | 1,512 |
| BEAR CREEK | Washington | Fair | 1930 | 96 | 2,881 |
| HALF BR W OF BUNKER HILL | Washington | Fair | 1930 | 96 | 4,787 |
| HALF BR W OF BUNKER HILL | Washington | Fair | 1930 | 96 | 4,787 |
| HALF BRIDGE | Washington | Poor | 1930 | 96 | 4,879 |
| SKYKOMISH RIVER-S FORK | Washington | Poor | 1930 | 96 | 80 |
| ROCK CREEK | Washington | Fair | 1930 | 96 | 220 |
| DEADMAN CREEK | Washington | Fair | 1930 | 96 | 20 |
| DAKOTA CREEK | Washington | Fair | 1930 | 96 | 7,776 |
| MATNEY CREEK | Washington | Fair | 1930 | 96 | 814 |
| COWICHE CREEK | Washington | Good | 1930 | 96 | 7,000 |
| LAKE CREEK | Washington | Good | 1930 | 96 | 69 |
| MASON CREEK | Washington | Fair | 1930 | 96 | 1,151 |
| WILSON CREEK | Washington | Fair | 1930 | 96 | 4,692 |
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.