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 |
|---|---|---|---|---|---|
| Parking garage | Washington | Fair | 1910 | 116 | 15,000 |
| RAILROAD STATION | Washington | Fair | 1910 | 116 | 13,500 |
| ST TUNNEL | Washington | Fair | 1910 | 116 | 8,000 |
| E 24TH&B ST& ABANDONED R | Washington | Good | 1910 | 116 | 13,000 |
| MILL CREEK | Washington | Fair | 1910 | 116 | 6,123 |
| SAND DITCH | Washington | Fair | 1910 | 116 | 355 |
| BUCKLEY GULCH | Washington | Good | 1910 | 116 | 15,000 |
| UNION FLAT CREEK | Washington | Fair | 1910 | 116 | 200 |
| KETTLE RIVER | Washington | Fair | 1910 | 116 | 30 |
| PARKING GARAGE | Washington | Poor | 1910 | 116 | 27,000 |
| CITY WATERWAY CS2749 | Washington | Fair | 1911 | 115 | 3,100 |
| PUYALLUP WATERWAY RR | Washington | Poor | 1911 | 115 | 2,400 |
| CHINA CREEK | Washington | Fair | 1911 | 115 | 8,788 |
| SPOKANE RIVER | Washington | Fair | 1911 | 115 | 18,453 |
| LATAH CREEK | Washington | Good | 1911 | 115 | 182 |
| WILSON CREEK | Washington | Fair | 1912 | 114 | 26 |
| COAL CREEK | Washington | Fair | 1912 | 114 | 10 |
| WILLOW CREEK | Washington | Fair | 1912 | 114 | 70 |
| UNNAMED DRAINAGE | Washington | Fair | 1912 | 114 | 51 |
| 5TH AVE S | Washington | Fair | 1912 | 114 | 7,215 |
| 26TH AVE E | Washington | Fair | 1912 | 114 | 200 |
| EVANS CREEK | Washington | Fair | 1913 | 113 | 397 |
| EVANS CREEK | Washington | Fair | 1913 | 113 | 500 |
| NEGRO CREEK | Washington | Fair | 1913 | 113 | 5 |
| CRAB CREEK | Washington | Good | 1913 | 113 | 11 |
| LATAH CREEK | Washington | Poor | 1913 | 113 | 14,995 |
| DRY WASH | Washington | Fair | 1914 | 112 | 46 |
| ROCKY COULEE | Washington | Fair | 1914 | 112 | 71 |
| TOUCHET RIVER | Washington | Poor | 1914 | 112 | 100 |
| ROCKY COULEE | Washington | Fair | 1914 | 112 | 50 |
| COW CREEK | Washington | Fair | 1914 | 112 | 50 |
| DRY RELIEF | Washington | Fair | 1914 | 112 | 50 |
| ROCKY COULEE | Washington | Fair | 1914 | 112 | 14 |
| ROCK CREEK | Washington | Fair | 1914 | 112 | — |
| DRY CREEK | Washington | Fair | 1914 | 112 | 35 |
| GREEN RIVER | Washington | Fair | 1914 | 112 | 350 |
| SOUTH FORK PALOUSE RIVER | Washington | Fair | 1914 | 112 | 3 |
| DRY CREEK | Washington | Fair | 1914 | 112 | 29 |
| MILL CR | Washington | Fair | 1915 | 111 | 24,100 |
| HJF CANAL | Washington | Poor | 1915 | 111 | 7,516 |
| PINE CREEK | Washington | Fair | 1915 | 111 | 364 |
| DRY WASH | Washington | Fair | 1915 | 111 | 112 |
| MIDDLE FORK | Washington | Fair | 1915 | 111 | 117 |
| CRAB CREEK | Washington | Fair | 1915 | 111 | 33 |
| WB LITTLE SPOKANE RIVER | Washington | Fair | 1915 | 111 | 98 |
| NO NAME CREEK | Washington | Good | 1915 | 111 | 153 |
| BRANCH FOUR MILE CREEK | Washington | Fair | 1915 | 111 | 10 |
| DRY WASH | Washington | Fair | 1915 | 111 | 52 |
| DRY RELIEF | Washington | Fair | 1915 | 111 | 25 |
| RAGING RIVER | Washington | Fair | 1915 | 111 | 15 |
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.