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
BNSF RAILWAY Washington Good 2010 88.2 m 30,397
ARGENT ROAD Washington Fair 1984 44.5 m 30,320
ARGENT ROAD Washington Good 1984 39.6 m 30,320
EVANS CREEK Washington Good 2007 21.3 m 30,193
E.FK.ISSAQUAH CK. Washington Fair 1970 12.5 m 30,000
I-5 Washington Fair 1964 85.3 m 30,000
SAMMAMISH RIVER Washington Fair 1992 35.1 m 30,000
SR 512 Washington Fair 1971 86.6 m 29,975
PARKER HORN Washington Fair 1958 45.1 m 29,630
I-405 Washington Fair 2003 68.3 m 29,600
N 4TH AVE Washington Fair 1964 49.7 m 29,585
N 4TH AVE Washington Good 1968 53.9 m 29,585
WEST CAMAS SLOUGH Washington Fair 1964 316.4 m 29,477
ERLAND POINT RD Washington Good 1966 49.0 m 29,466
ERLAND POINT RD Washington Fair 1966 48.9 m 29,466
I-5 Washington Fair 1958 63.4 m 29,346
SHIP CANAL Washington Fair 1917 96.6 m 29,300
SWAMP CREEK Washington Fair 1960 6.9 m 29,286
NEWAUKUM RIVER Washington Fair 1952 86.6 m 29,186
NEWAUKUM RIVER Washington Fair 1952 86.6 m 29,186
WHITWORTH DRIVE Washington Fair 1985 44.8 m 29,166
I-5 RAMPS Washington Poor 1961 97.8 m 29,145
I-5 Washington Good 2001 98.8 m 29,024
2ND ST Washington Fair 1963 64.0 m 29,011
SNOHOMISH R OVERFLOW Washington Fair 1960 113.1 m 29,011
SNOHOMISH RIVER Washington Fair 1959 338.6 m 29,011
OSTRANDER CREEK Washington Fair 1965 6.4 m 28,965
LAKE WASHINGTON Washington Good 2016 249.9 m 28,957
LAKE WASHINGTON Washington Fair 2016 2,327.1 m 28,957
LAKE WASHINGTON Washington Good 2016 249.3 m 28,957
COWEEMAN RIVER Washington Fair 1979 92.7 m 28,940
COWEEMAN RIVER Washington Fair 1979 141.4 m 28,940
COWEEMAN RIVER Washington Fair 1979 150.9 m 28,940
COWEEMAN RIVER Washington Fair 1980 150.6 m 28,940
COWEEMAN RIVER Washington Fair 1979 80.8 m 28,940
COWEEMAN RIVER Washington Fair 1979 149.7 m 28,940
CITY STREETS & RAILROAD Washington Good 2011 293.8 m 28,886
SR 519 (ATLANTIC ST)/RR Washington Good 2011 206.3 m 28,886
TERRAIN Washington Good 2011 289.9 m 28,886
I-5 Washington Fair 1960 73.5 m 28,856
QUARRY RD Washington Fair 1957 8.5 m 28,694
STADIUM BNSFRR 4TH AVE Washington Fair 2002 251.2 m 28,680
DEXTER WAY N Washington Fair 1930 10.7 m 28,629
CLOVER CREEK Washington Good 1993 11.9 m 28,600
SIRR (UPRR) Washington Fair 1971 238.8 m 28,557
18TH STREET Washington Fair 1979 12.5 m 28,500
BNSF RR Washington Poor 1934 64.3 m 28,316
JOE LEARY SLOUGH Washington Fair 1964 20.7 m 28,272
DRAINAGE DITCH Washington Fair 1963 20.7 m 28,272
I-5 Washington Fair 1966 546.5 m 28,260

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.