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 |
|---|---|---|---|---|---|
| SR 202 OVER SKUNK CREEK | Washington | Good | 2024 | 21.1 m | 10,490 |
| I-90 | Washington | Fair | 1962 | 77.1 m | 10,477 |
| I-90 | Washington | Fair | 1962 | 76.8 m | 10,477 |
| China Ditch | Washington | Fair | 2009 | 31.1 m | 10,460 |
| CLEAR CREEK | Washington | Good | 2006 | 21.3 m | 10,457 |
| SR 410 RAMPS | Washington | Good | 2021 | 42.8 m | 10,448 |
| SR 410 RAMPS | Washington | Good | 1967 | 66.4 m | 10,448 |
| SLOUGH | Washington | Fair | 1945 | 15.8 m | 10,445 |
| SLOUGH | Washington | Good | 1945 | 17.7 m | 10,445 |
| SLOUGH | Washington | Good | 1945 | 21.0 m | 10,445 |
| CHERRY CREEK | Washington | Poor | 1946 | 30.8 m | 10,445 |
| SLOUGH | Washington | Good | 1984 | 19.5 m | 10,445 |
| C.I.D. CANAL | Washington | Fair | 1956 | 7.3 m | 10,411 |
| I-5 | Washington | Fair | 1961 | 82.9 m | 10,381 |
| WHATCOM CREEK | Washington | Good | 2022 | 20.4 m | 10,360 |
| I-5 SOUND TRANSIT RR | Washington | Good | 1965 | 100.3 m | 10,356 |
| SPRINGBROOK CREEK | Washington | Good | 1986 | 41.8 m | 10,341 |
| CITY STREET NPRR | Washington | Fair | 1959 | 339.5 m | 10,336 |
| COLLECTOR DISTRIBUTOR | Washington | Good | 2004 | 114.0 m | 10,323 |
| 15TH ST-PLRR I-705 | Washington | Good | 1987 | 379.9 m | 10,307 |
| MCDONALD CREEK | Washington | Good | 2013 | 91.4 m | 10,300 |
| SIEBERT CREEK | Washington | Good | 2021 | 53.9 m | 10,300 |
| MCDONALD CREEK | Washington | Good | 2013 | 91.4 m | 10,300 |
| SIEBERT CREEK | Washington | Good | 1999 | 198.1 m | 10,300 |
| RAMP NB I-5 TO 50TH | Washington | Good | 1961 | 13.5 m | 10,276 |
| GREEN RIVER | Washington | Fair | 1973 | 62.8 m | 10,269 |
| WOODS CREEK | Washington | Good | 2004 | 25.0 m | 10,268 |
| S FK WILLAPA RIVER | Washington | Poor | 1966 | 182.9 m | 10,253 |
| I-5 | Washington | Fair | 1959 | 87.8 m | 10,241 |
| RAILROAD | Washington | Good | 1989 | 53.3 m | 10,220 |
| RAILROAD | Washington | Fair | 1964 | 53.3 m | 10,220 |
| COFFEE CREEK | Washington | Good | 1955 | 7.3 m | 10,213 |
| PUGET SOUND @ SEATTLE | Washington | Good | 1990 | 27.4 m | 10,212 |
| PUGET SOUND @ SEATTLE | Washington | Fair | 2019 | 193.5 m | 10,212 |
| NOOKSACK R OVERFLOW | Washington | Poor | 1994 | 11.6 m | 10,205 |
| NOOKSACK RIVER | Washington | Good | 1994 | 142.0 m | 10,205 |
| HATCH ROAD | Washington | Good | 2001 | 66.4 m | 10,193 |
| HATCH ROAD | Washington | Good | 2001 | 78.0 m | 10,193 |
| LAKE LOIS | Washington | Good | 2014 | 7.3 m | 10,192 |
| SR 23 | Washington | Fair | 1967 | 35.1 m | 10,191 |
| SR 23 | Washington | Fair | 1967 | 35.1 m | 10,191 |
| SLOUGH | Washington | Fair | 1945 | 17.7 m | 10,190 |
| SAMMAMISH RIVER | Washington | Fair | 1968 | 92.4 m | 10,166 |
| HANSEN CREEK | Washington | Good | 1949 | 15.2 m | 10,162 |
| MILLER CREEK | Washington | Good | 2005 | 14.9 m | 10,150 |
| BROWNE ST | Washington | Fair | 1967 | 150.0 m | 10,132 |
| SR 224 | Washington | Fair | 1973 | 50.9 m | 10,124 |
| SR 224 | Washington | Fair | 1973 | 50.9 m | 10,124 |
| WILDCAT CREEK | Washington | Good | 2024 | 27.7 m | 10,124 |
| E FK WILDCAT CR | Washington | Good | 1962 | 32.3 m | 10,124 |
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.