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 |
|---|---|---|---|---|---|
| CW RY | Washington | Fair | 1953 | 60.7 m | 36,296 |
| NP RY & DILLENBAUGH CR | Washington | Fair | 1954 | 163.7 m | 36,296 |
| I-205 | Washington | Fair | 1973 | 124.5 m | 36,179 |
| EB I-90 RAMP | Washington | Good | 1969 | 25.0 m | 36,070 |
| NE RAMP OVER PED PATH | Washington | Good | 2021 | 7.6 m | 36,070 |
| PORTAGE BAY PL E | Washington | Poor | 1930 | 61.3 m | 36,000 |
| GREEN RIVER | Washington | Fair | 1966 | 59.1 m | 36,000 |
| RAMP/120TH AVE | Washington | Good | 1990 | 11.0 m | 35,856 |
| RAMPS RAIL CITY STREET | Washington | Fair | 1965 | 263.7 m | 35,848 |
| SR 3 | Washington | Good | 1981 | 73.8 m | 35,743 |
| SILVERDALE WAY NW | Washington | Good | 1982 | 34.1 m | 35,743 |
| I-5 DRAINAGE | Washington | Fair | 1972 | 22.9 m | 35,558 |
| TODD RD | Washington | Good | 1971 | 51.2 m | 35,483 |
| TODD RD | Washington | Good | 1971 | 50.3 m | 35,483 |
| LYON CREEK | Washington | Good | 2015 | 8.2 m | 35,374 |
| I-5 | Washington | Fair | 1964 | 149.7 m | 35,106 |
| SWAMP CREEK | Washington | Good | 2008 | 26.2 m | 35,060 |
| NE PACIFIC ST | Washington | Fair | 1930 | 97.8 m | 35,000 |
| PORTAGE BAY | Washington | Poor | 1915 | 88.7 m | 35,000 |
| N FORK ISSAQUAH CREEK | Washington | Good | 2017 | 7.3 m | 35,000 |
| S 170TH ST | Washington | Good | 2010 | 123.7 m | 35,000 |
| E FK ISSAQUAH CR | Washington | Fair | 1976 | 70.1 m | 34,797 |
| E FK ISSAQUAH CREEK | Washington | Fair | 1976 | 23.8 m | 34,797 |
| E FK ISSAQUAH CREEK | Washington | Good | 1976 | 22.6 m | 34,797 |
| E FK ISSAQUAH CREEK | Washington | Good | 1976 | 23.8 m | 34,797 |
| E FK ISSAQUAH CR | Washington | Fair | 1976 | 22.6 m | 34,797 |
| E FK ISSAQUAH CREEK | Washington | Fair | 1976 | 165.8 m | 34,797 |
| HARDESON ROAD | Washington | Fair | 1969 | 49.8 m | 34,774 |
| BLAKESLEE JCT RR | Washington | Good | 2015 | 100.3 m | 34,754 |
| RR & REYNOLDS RD. | Washington | Good | 2013 | 122.2 m | 34,754 |
| PRAIRIE CREEK | Washington | Good | 2010 | 24.4 m | 34,754 |
| PRAIRIE CREEK | Washington | Fair | 2009 | 23.5 m | 34,754 |
| PARK AVE | Washington | Good | 1963 | 20.4 m | 34,697 |
| I-90 | Washington | Fair | 1985 | 57.6 m | 34,662 |
| R ST | Washington | Good | 1970 | 49.1 m | 34,579 |
| BEAR CREEK | Washington | Fair | 1979 | 15.8 m | 34,500 |
| HOSPITAL ACCESS ROAD | Washington | Fair | 1992 | 10.7 m | 34,442 |
| COLUMBIA R-RIVERSIDE DR | Washington | Fair | 1954 | 768.4 m | 34,219 |
| NAE AOA TUNNEL | Washington | Good | 2010 | 17.7 m | 34,200 |
| ELM ST | Washington | Fair | 1968 | 24.4 m | 34,170 |
| ELM ST | Washington | Good | 1968 | 24.4 m | 34,170 |
| E FK ISSAQUAH CR | Washington | Good | 1975 | 16.2 m | 34,108 |
| E FK ISSAQUAH CR | Washington | Fair | 1951 | 15.8 m | 34,108 |
| RAMP SR 518 TO I-5 | Washington | Good | 1966 | 53.6 m | 34,031 |
| ACCESS RD PARKING | Washington | Good | 2009 | 215.2 m | 34,000 |
| 44TH AVE NW | Washington | Fair | 1971 | 42.1 m | 33,933 |
| 44TH AVE NW | Washington | Fair | 1957 | 36.3 m | 33,933 |
| LOG DUMP RD & BN RY | Washington | Poor | 1972 | 205.7 m | 33,912 |
| LOG DUMP RD | Washington | Fair | 1955 | 31.7 m | 33,912 |
| HIGH POINT RD | Washington | Fair | 1975 | 42.7 m | 33,894 |
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.