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
SOUTH FORK DEADMAN CREEK Washington Fair 1975 9.9 m 1
RUBY CREEK Washington Poor 1970 12.4 m 1
COUSE CREEK Washington Fair 1957 9.1 m 1
DRY RELIEF Washington Fair 1900 7.9 m 1
HOPE CR. Washington Good 2000 12.4 m 1
UNION FLAT CREEK Washington Good 1975 21.3 m 1
SO FORK ASOTIN CREEK Washington Fair 1957 9.8 m 1
DRY WASH Washington Fair 1915 11.6 m 1
INTERMITTENT STREAM Washington Fair 1961 7.1 m 1
THORN CREEK Washington Good 1994 9.8 m 1
BOULDER CREEK Washington Fair 1920 10.7 m 1
LOUP LOUP CREEK Washington Good 2014 15.8 m 1
MILL CR. Washington Good 2021 19.4 m 1
SAMMAMISH RIVER Washington Fair 2022 179.8 m 1
KESTNER CREEK Washington Fair 2003 24.7 m 1
CLOVER CREEK Washington Poor 1960 17.5 m 1
SR 99 TUNNEL VOID SPACE Washington Good 2018 37.5 m -
HARVEY CREEK Washington Fair 1974 12.4 m -
ROCK CREEK Washington Fair 1914 22.6 m -
SKAGIT RIVER Washington Fair 1940 29.6 m -

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.