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 |
|---|---|---|---|---|---|
| GOOSE CREEK | Washington | Good | 1931 | 95 | 3,715 |
| MARION DRAIN CANAL | Washington | Good | 1931 | 95 | 4,257 |
| CEDAR CR | Washington | Fair | 1931 | 95 | 1,151 |
| HILINE CANAL | Washington | Fair | 1931 | 95 | 249 |
| HILINE CANAL | Washington | Fair | 1931 | 95 | 201 |
| SIDE HILL RAVINE | Washington | Fair | 1931 | 95 | 730 |
| HILINE CANAL | Washington | Fair | 1931 | 95 | 794 |
| HILINE CANAL | Washington | Fair | 1931 | 95 | 158 |
| WENATCHEE RIVER | Washington | Poor | 1931 | 95 | 3,489 |
| PUYALLUP RIVER | Washington | Fair | 1931 | 95 | 7,250 |
| FRENCHMAN SPRINGS | Washington | Good | 1931 | 95 | 169 |
| FRENCHMAN SPRINGS | Washington | Good | 1931 | 95 | 169 |
| HILINE CANAL | Washington | Good | 1931 | 95 | 76 |
| HILINE CANAL | Washington | Fair | 1931 | 95 | 24 |
| HILINE CANAL | Washington | Fair | 1931 | 95 | 266 |
| HILINE CANAL | Washington | Fair | 1931 | 95 | 70 |
| HILINE CANAL | Washington | Fair | 1931 | 95 | 138 |
| FRENCHMAN SPRINGS | Washington | Good | 1931 | 95 | 169 |
| HILINE CANAL | Washington | Fair | 1931 | 95 | 137 |
| BNSF RR | Washington | Poor | 1931 | 95 | 7,700 |
| BIG SOOS CREEK | Washington | Fair | 1931 | 95 | 7,293 |
| CMSTP&P RR A TO C STREE | Washington | Fair | 1931 | 95 | 8,375 |
| AIRPORT WAY S RR | Washington | Fair | 1931 | 95 | 13,000 |
| MERRILL & RING CREEK | Washington | Poor | 1931 | 95 | 6,123 |
| YAKIMA RIVER | Washington | Fair | 1931 | 95 | 6,779 |
| FRYINGPAN CREEK | Washington | Poor | 1931 | 95 | 1,786 |
| GREEN R | Washington | Fair | 1932 | 94 | 11,364 |
| LEWIS RIVER | Washington | Poor | 1932 | 94 | 1,239 |
| NACHES-SELAH CANAL | Washington | Good | 1932 | 94 | 2,259 |
| CEDAR CREEK | Washington | Fair | 1932 | 94 | 5,851 |
| RAILROAD | Washington | Fair | 1932 | 94 | 5,851 |
| BLACK RIVER | Washington | Fair | 1932 | 94 | 7,629 |
| YAKIMA RIVER | Washington | Fair | 1932 | 94 | 13,121 |
| NACHES RIVER | Washington | Fair | 1932 | 94 | 24,488 |
| LOWER WILSON CREEK | Washington | Fair | 1932 | 94 | 1,474 |
| N 38TH ST | Washington | Fair | 1932 | 94 | 61,259 |
| GREENWATER RIVER | Washington | Fair | 1932 | 94 | 1,907 |
| COWICHE CREEK | Washington | Good | 1932 | 94 | 10,931 |
| SKOKOMISH RIVER | Washington | Fair | 1932 | 94 | 7,648 |
| PADDEN CREEK | Washington | Fair | 1932 | 94 | 10,799 |
| SAN POIL RIVER | Washington | Fair | 1932 | 94 | 406 |
| SKYKOMISH R | Washington | Fair | 1932 | 94 | 9,748 |
| N 63RD ST | Washington | Fair | 1932 | 94 | 33,359 |
| Pend Oreille River | Washington | Fair | 1932 | 94 | 705 |
| SUMAS RIVER | Washington | Fair | 1932 | 94 | 106 |
| FIFTEEN MILE CREEK | Washington | Poor | 1932 | 94 | 4,279 |
| NORTH DEADMAN CREEK | Washington | Good | 1932 | 94 | 140 |
| SUMAS RIVER | Washington | Fair | 1932 | 94 | 280 |
| DRY HOLLOW | Washington | Fair | 1932 | 94 | 36 |
| DRY CREEK | Washington | Fair | 1932 | 94 | 171 |
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.