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 |
|---|---|---|---|---|---|
| STEELE CREEK | Washington | Good | 2007 | 7.3 m | 4,305 |
| S 170TH | Washington | Fair | 1972 | 45.1 m | 4,300 |
| THIRD STREET | Washington | Fair | 1980 | 109.7 m | 4,300 |
| C.I.D. CANAL | Washington | Fair | 1959 | 8.0 m | 4,291 |
| SALMON CR | Washington | Fair | 1929 | 23.2 m | 4,290 |
| I-5 | Washington | Good | 1986 | 76.2 m | 4,290 |
| I-82 | Washington | Good | 1978 | 62.8 m | 4,287 |
| SILVER CREEK | Washington | Good | 1992 | 31.1 m | 4,286 |
| SIWASH CREEK | Washington | Good | 1948 | 15.8 m | 4,282 |
| ISSAQUAH CREEK | Washington | Good | 2009 | 30.8 m | 4,279 |
| FIFTEEN MILE CREEK | Washington | Poor | 1932 | 12.2 m | 4,279 |
| ELWHA RIVER | Washington | Good | 2024 | 153.1 m | 4,276 |
| S FORK PALOUSE RIVER | Washington | Fair | 1981 | 25.6 m | 4,272 |
| US 395 | Washington | Good | 2008 | 105.2 m | 4,265 |
| MARION DRAIN CANAL | Washington | Good | 1931 | 14.9 m | 4,257 |
| TOPPENISH CREEK | Washington | Good | 2002 | 67.1 m | 4,257 |
| CURLEY CREEK | Washington | Good | 2011 | 38.7 m | 4,251 |
| Port of Longview RR | Washington | Good | 2002 | 37.5 m | 4,250 |
| CROWN Z MILL WATER DITCH | Washington | Fair | 1919 | 7.0 m | 4,231 |
| WAPATO CREEK | Washington | Good | 2023 | 13.9 m | 4,225 |
| HYLEBOS CREEK | Washington | Good | 2023 | 21.3 m | 4,225 |
| N FK STILLAGUAMISH RIVER | Washington | Good | 1949 | 91.4 m | 4,211 |
| SQUALLICUM CREEK | Washington | Fair | 1970 | 8.2 m | 4,200 |
| SQUALLICUM CREEK | Washington | Fair | 1970 | 8.5 m | 4,200 |
| SQUALLICUM CREEK | Washington | Fair | 1970 | 128.3 m | 4,200 |
| HENDERSON BLVD RR | Washington | Fair | 1957 | 69.5 m | 4,197 |
| OLD RAILROAD GRADE | Washington | Good | 1958 | 58.8 m | 4,188 |
| BNRR (ABANDONED) | Washington | Fair | 1962 | 88.4 m | 4,188 |
| UPRR (ABANDONED) | Washington | Fair | 1964 | 40.8 m | 4,188 |
| SOUTHCENTER BLVD | Washington | Fair | 1996 | 67.7 m | 4,180 |
| US 101 | Washington | Good | 1985 | 443.8 m | 4,179 |
| MAPLE STREET | Washington | Fair | 1958 | 20.0 m | 4,177 |
| N-N RAMP | Washington | Good | 1996 | 78.3 m | 4,176 |
| N-N RAMP | Washington | Fair | 1996 | 78.3 m | 4,176 |
| MILL CREEK | Washington | Good | 2007 | 15.8 m | 4,170 |
| MILL CREEK | Washington | Fair | 2007 | 25.6 m | 4,169 |
| Cougar Creek | Washington | Good | 2012 | 19.4 m | 4,165 |
| CATTLE PASS | Washington | Fair | 1970 | 9.2 m | 4,155 |
| NACHES RIVER | Washington | Poor | 1964 | 75.0 m | 4,150 |
| ANDERSON CREEK | Washington | Fair | 2005 | 16.2 m | 4,147 |
| DUNGENESS RIVER | Washington | Fair | 1977 | 124.1 m | 4,147 |
| BUR. NOR. RAILROAD | Washington | Good | 1978 | 38.1 m | 4,134 |
| TRIB WEISER CR | Washington | Fair | 2005 | 67.5 m | 4,115 |
| SAMISH RIVER | Washington | Fair | 1920 | 22.9 m | 4,112 |
| SILVER CREEK | Washington | Fair | 1957 | 51.8 m | 4,109 |
| N-W RAMP SR 518 | Washington | Fair | 1971 | 185.6 m | 4,108 |
| OKANOGAN RIVER | Washington | Good | 2003 | 103.6 m | 4,100 |
| WESTOVER CREEK | Washington | Good | 2000 | 16.2 m | 4,100 |
| CHIMACUM CREEK | Washington | Fair | 1955 | 7.6 m | 4,080 |
| FRENCHTOWN ACCESS RD | Washington | Good | 2023 | 17.4 m | 4,072 |
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.