Browse Bridge Database
8,520 bridges in the FHWA National Bridge Inventory in Washington.
National Bridge Inventory Database
Browse 8,520 bridges from the Federal Highway Administration National Bridge Inventory. Filter by state, condition rating, or search by name and location.
| Bridge | Location | Condition | Year Built | Length | ADT |
|---|---|---|---|---|---|
| HAMILTON CREEK | Washington | Poor | 1978 | 82.3 m | 4,524 |
| WILKESON CREEK | Washington | Good | 1967 | 25.3 m | 4,521 |
| SO PRAIRIE CRK | Washington | Good | 1981 | 174.0 m | 4,521 |
| TERRAIN | Washington | Fair | 1988 | 127.4 m | 4,510 |
| OKANOGAN RIVER | Washington | Fair | 1950 | 139.6 m | 4,504 |
| ISSAQUAH CK | Washington | Good | 2015 | 29.0 m | 4,500 |
| CEDAR HOME RD | Washington | Fair | 2002 | 10.8 m | 4,500 |
| I-5 | Washington | Fair | 1954 | 63.2 m | 4,499 |
| LIND COULEE | Washington | Good | 1956 | 36.9 m | 4,494 |
| I-82 | Washington | Fair | 1984 | 77.1 m | 4,482 |
| SMITH CREEK | Washington | Fair | 1929 | 35.1 m | 4,478 |
| ELKHORN CR | Washington | Fair | 1929 | 29.9 m | 4,478 |
| I-5 | Washington | Fair | 1967 | 108.5 m | 4,466 |
| UNION RIVER | Washington | Good | 1992 | 14.3 m | 4,462 |
| PILCHUCK RIVER | Washington | Good | 1999 | 42.0 m | 4,458 |
| ASOTIN CREEK | Washington | Good | 1956 | 33.5 m | 4,450 |
| MUCK CREEK | Washington | Fair | 1947 | 9.8 m | 4,450 |
| I-5 NB I-5 EXPRESS RAMP | Washington | Good | 1962 | 129.1 m | 4,447 |
| I-82 | Washington | Fair | 1980 | 68.9 m | 4,440 |
| SOUND TRANSIT | Washington | Good | 2024 | 10.3 m | 4,435 |
| DEMPSEY CREEK | Washington | Good | 1995 | 7.3 m | 4,432 |
| Portage Creek | Washington | Good | 1999 | 27.8 m | 4,432 |
| SLOUGH | Washington | Fair | 1953 | 93.6 m | 4,428 |
| SLOUGH | Washington | Fair | 1953 | 85.0 m | 4,428 |
| MILL CREEK | Washington | Fair | 1902 | 15.8 m | 4,412 |
| BIG BEEF CREEK | Washington | Good | 1995 | 7.3 m | 4,400 |
| S-S RAMP I-705 TO SR 7 | Washington | Fair | 1965 | 80.8 m | 4,393 |
| CMSTPR RR | Washington | Fair | 1965 | 68.6 m | 4,393 |
| CHASE LAKE | Washington | Fair | 1968 | 138.4 m | 4,386 |
| GHEER CREEK | Washington | Good | 1947 | 11.3 m | 4,376 |
| S FORK NEWAUKUM RIVER | Washington | Good | 1989 | 97.5 m | 4,376 |
| OVERFLOW CHANNEL | Washington | Fair | 2006 | 32.9 m | 4,372 |
| ARKANSAS CREEK | Washington | Good | 1981 | 50.6 m | 4,365 |
| TWISP R | Washington | Good | 2000 | 60.4 m | 4,361 |
| COLEMAN CREEK | Washington | Good | 2015 | 8.8 m | 4,356 |
| NANEUM CREEK | Washington | Good | 2015 | 8.2 m | 4,356 |
| TOWN DITCH | Washington | Good | 2015 | 12.2 m | 4,356 |
| WB OFF RAMP | Washington | Poor | 1971 | 144.5 m | 4,350 |
| WIND RIVER | Washington | Good | 1985 | 202.1 m | 4,346 |
| Siebert Creek | Washington | Good | 1998 | 83.5 m | 4,344 |
| COLUMBIA R KETTLE FALLS | Washington | Fair | 1941 | 386.2 m | 4,342 |
| SPOKANE RIVER | Washington | Good | 1992 | 107.5 m | 4,341 |
| CHINA CREEK | Washington | Fair | 1944 | 9.4 m | 4,336 |
| FRENCH CREEK | Washington | Good | 2000 | 35.4 m | 4,328 |
| NORTH CREEK | Washington | Fair | 1984 | 23.5 m | 4,323 |
| I-5 | Washington | Fair | 1954 | 59.1 m | 4,314 |
| DRY CREEK | Washington | Fair | 1920 | 29.6 m | 4,314 |
| COULTER CR | Washington | Fair | 1956 | 35.4 m | 4,313 |
| SOOS CREEK | Washington | Fair | 1971 | 9.8 m | 4,306 |
| STEELE CREEK | Washington | Good | 2007 | 7.3 m | 4,305 |
Frequently Asked Questions
The National Bridge Inventory (NBI) is a federal database maintained by the Federal Highway Administration containing inspection data for all bridges on public roads in the U.S. with a span of more than 20 feet. Bridge owners must inspect each structure at least every 24 months.
ADT stands for Average Daily Traffic, the average number of vehicles crossing the bridge per day. Bridges are sorted by ADT by default because high-traffic bridges in poor condition pose the greatest risk to the most people.
Yes. Use the search field above to find bridges by name, location, or features crossed. You can also combine the search with state and condition filters to narrow your results.