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 516 | Washington | Fair | 1967 | 57.9 m | 55,901 |
| NORTH CREEK | Washington | Good | 1968 | 34.7 m | 55,889 |
| MONTLAKE CUT | Washington | Fair | 1924 | 104.9 m | 55,497 |
| KING JACKSON ST | Washington | Good | 1965 | 216.1 m | 55,400 |
| ADMIRAL WAY AVALON WAY | Washington | Fair | 1963 | 951.9 m | 55,000 |
| 84TH AVE SOUTH | Washington | Fair | 1967 | 69.8 m | 53,546 |
| 84TH AVE SOUTH | Washington | Good | 1967 | 69.8 m | 53,546 |
| I-405 | Washington | Fair | 1968 | 103.9 m | 53,140 |
| SR 501/MILL PLAIN BLVD | Washington | Good | 1981 | 64.0 m | 52,908 |
| MCLOUGHLIN BLVD | Washington | Fair | 1981 | 48.2 m | 52,908 |
| SR 501/MILL PLAIN BLVD | Washington | Good | 1979 | 64.0 m | 52,908 |
| MCLOUGHLIN BLVD | Washington | Good | 1980 | 48.2 m | 52,908 |
| THIRD AVE SW | Washington | Good | 1977 | 50.0 m | 52,419 |
| PEASLEY CANYON RD | Washington | Fair | 1958 | 111.0 m | 52,049 |
| W VALLEY HWY(OLD SR 181) | Washington | Good | 1957 | 34.7 m | 52,049 |
| SHIP CANAL RR | Washington | Fair | 1940 | 609.0 m | 52,000 |
| SHILSHOLE AVE NW | Washington | Fair | 1940 | 179.5 m | 52,000 |
| LINWOOD AVE | Washington | Good | 1955 | 16.2 m | 51,489 |
| UPRR | Washington | Good | 2000 | 18.0 m | 51,385 |
| UPRR | Washington | Good | 2001 | 18.0 m | 51,385 |
| SPRAGUE AVE | Washington | Fair | 2000 | 67.1 m | 51,385 |
| SPRAGUE AVE | Washington | Good | 2001 | 67.4 m | 51,385 |
| VIADUCT STA 1396 US 2 | Washington | Fair | 1967 | 842.8 m | 51,197 |
| CITY STREETS | Washington | Fair | 1967 | 880.9 m | 51,197 |
| 3RD AV & W-E RAMP | Washington | Fair | 1970 | 204.5 m | 51,158 |
| E-N RAMP | Washington | Good | 1976 | 11.6 m | 51,099 |
| SOUTH 12TH STREET | Washington | Good | 2006 | 41.1 m | 50,579 |
| SOUTH 12TH STREET | Washington | Good | 1986 | 59.1 m | 50,579 |
| CMSTPP RR | Washington | Good | 1955 | 85.3 m | 50,541 |
| UP RR | Washington | Good | 1972 | 86.6 m | 50,541 |
| MCALLISTER CR | Washington | Fair | 1968 | 82.9 m | 50,433 |
| MCALLISTER CREEK | Washington | Fair | 1968 | 82.9 m | 50,433 |
| NISQUALLY OVERFLOW | Washington | Fair | 1968 | 61.0 m | 50,433 |
| NISQUALLY OVERFLOW-SOUTH | Washington | Fair | 1982 | 61.0 m | 50,433 |
| I-5 | Washington | Fair | 1960 | 101.2 m | 49,879 |
| MARTIN WAY | Washington | Fair | 1967 | 84.1 m | 49,562 |
| MARTIN WAY | Washington | Fair | 1967 | 86.0 m | 49,562 |
| SBCD VIADUCT STA 2195 | Washington | Fair | 1964 | 245.7 m | 49,417 |
| CAPITOL LAKE | Washington | Good | 1956 | 119.5 m | 49,410 |
| DESCHUTES PARKWAY | Washington | Fair | 1956 | 36.0 m | 49,410 |
| ELLINGSON ROAD | Washington | Fair | 1977 | 49.7 m | 48,865 |
| FIRST AVE N | Washington | Fair | 1977 | 44.5 m | 48,865 |
| I-90 | Washington | Good | 2008 | 272.2 m | 48,783 |
| I-90 FACTORIA | Washington | Fair | 1969 | 183.5 m | 48,783 |
| I-405 | Washington | Good | 2003 | 100.0 m | 48,783 |
| DUWAMISH RIVER | Washington | Fair | 1956 | 917.4 m | 48,204 |
| S WENATCHEE AVE | Washington | Poor | 1973 | 39.6 m | 48,107 |
| PORTAGE CREEK | Washington | Fair | 1957 | 36.9 m | 47,995 |
| PORTAGE CREEK | Washington | Good | 1970 | 36.6 m | 47,995 |
| SOATON CREEK | Washington | Good | 2003 | 9.8 m | 47,924 |
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.