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.

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BridgeLocationConditionYear BuiltLengthADT
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.