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
MERCER SLOUGH Washington Fair 1970 295.7 m 3,203
RAILROAD Washington Good 2010 203.0 m 3,200
INDIAN CR Washington Fair 1927 31.7 m 3,200
SR 520 Washington Good 1980 77.4 m 3,200
SOUND TRANSIT P&R ACCESS Washington Fair 2002 24.4 m 3,200
SNOQUALMIE RIVER Washington Fair 2008 293.2 m 3,200
HENDERSON BLVD Washington Good 1986 73.2 m 3,197
CATHERINE CREEK Washington Good 1997 21.3 m 3,192
COAL CREEK Washington Fair 1950 17.4 m 3,189
I-5 Washington Good 1968 83.5 m 3,185
DUWAMISH RIVER Washington Poor 1949 86.6 m 3,185
I-90 Washington Fair 1965 86.9 m 3,181
LILLIWAUP R Washington Fair 1925 33.8 m 3,173
SR 500/PADDEN PARKWAY Washington Good 2001 33.5 m 3,165
CREEK Washington Fair 1951 18.3 m 3,164
ALPOWA CR Washington Fair 1975 64.9 m 3,159
HUMPTULIPS RIVER OVERFLO Washington Fair 1960 52.0 m 3,153
PORTAGE CANAL Washington Fair 1951 204.2 m 3,152
COTTONWOOD CREEK Washington Good 1982 23.8 m 3,145
PALIX RIVER Washington Fair 1991 301.8 m 3,145
NIAWIAKUM RIVER Washington Fair 1991 419.1 m 3,145
LAKE SACAJAWEA Washington Fair 1940 49.7 m 3,133
DRAINAGE DITCH Washington Good 1999 16.5 m 3,124
SAMISH RIVER Washington Fair 1934 117.3 m 3,113
5TH PLAIN CREEK Washington Good 2022 10.1 m 3,105
I-90 Washington Fair 1988 117.0 m 3,102
SWINOMISH SLOUGH Washington Fair 1957 242.9 m 3,101
HARRIS CREEK Washington Good 2005 24.4 m 3,101
CITY WATERWAY CS2749 Washington Fair 1911 532.8 m 3,100
BURLINGTON NORTHERN Washington Fair 1964 34.5 m 3,100
FARM STORAGE Washington Fair 1970 9.1 m 3,097
GIBBONS CREEK Washington Fair 1940 8.5 m 3,097
PALOUSE RIVER Washington Poor 1937 183.7 m 3,094
SALMON CREEK Washington Fair 1958 17.7 m 3,093
GLENWOOD CREEK Washington Fair 1979 92.3 m 3,083
EAGLE CR Washington Good 1950 25.0 m 3,065
OKANOGAN RIVER Washington Fair 1999 94.2 m 3,056
PUGET SOUND @ EAGLE HRBR Washington Fair 2006 32.0 m 3,052
PUGET SOUND @ EAGLE HRBR Washington Good 2006 134.1 m 3,052
I-5 Washington Good 1966 64.0 m 3,051
PALOUSE RIVER Washington Fair 1938 39.5 m 3,048
BLACK RIVER Washington Fair 1968 30.5 m 3,047
UNNAMED STREAM Washington Good 2007 8.8 m 3,047
BEAVER CREEK Washington Fair 1970 18.0 m 3,040
CAMPBELL CREEK Washington Good 1993 7.9 m 3,036
HIGH CREEK Washington Good 2016 8.5 m 3,035
EAST FORK ROCKY CREEK Washington Good 1999 20.1 m 3,025
CHELAN RIVER Washington Fair 1927 139.3 m 3,024
COUTLER CREEK Washington Good 2020 24.7 m 3,021
SWAMP CREEK Washington Good 2013 27.9 m 3,021

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.