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.

Clear
BridgeLocationConditionYear BuiltLengthADT
UNION RIVER Washington Fair 1960 19.8 m 12,136
OVERFLOW SL Washington Fair 1954 25.0 m 12,132
DRAINAGE OVERFLOW Washington Poor 1954 27.1 m 12,132
I-5 Washington Good 1964 86.0 m 12,100
NP RY Washington Good 1964 40.8 m 12,077
NP RY Washington Fair 1964 40.8 m 12,077
MERCER ST Washington Good 2015 39.3 m 12,045
I-405 Washington Good 1990 62.5 m 12,000
PUGET SOUND @ SEATTLE Washington Fair 2019 63.1 m 12,000
POSSESSION SOUND Washington Fair 1987 32.0 m 12,000
I-5 SB Washington Good 2007 55.5 m 12,000
SAMMAMISH RIVER Washington Fair 1985 54.6 m 12,000
COWLITZ R. AND BNSF RR Washington Good 2007 197.2 m 12,000
Tibbetts Creek Washington Good 2001 12.6 m 12,000
WIDE HOLLOW CREEK Washington Poor 1970 7.9 m 12,000
SR 99 Washington Fair 1959 65.2 m 11,989
SR 509 Washington Good 1971 68.3 m 11,984
SR 18 Washington Good 1997 78.9 m 11,963
SOOSETTE CREEK Washington Good 1997 176.8 m 11,963
SR 509 Washington Good 1971 77.1 m 11,946
SR 509 Washington Good 2001 64.9 m 11,919
NORTH CR & GILLMAN TRAIL Washington Good 1968 42.7 m 11,919
US 97 ALT EUCLID AVE Washington Good 1979 48.2 m 11,918
BN RR Washington Good 1974 55.8 m 11,918
US 97 ALT EUCLID AVE Washington Good 1979 48.2 m 11,918
CITY STREETS Washington Good 1991 372.5 m 11,916
NEWMAN CREEK Washington Good 1965 18.3 m 11,911
NEWMAN CREEK Washington Good 1965 18.3 m 11,911
WHATCOM CREEK Washington Fair 1989 20.1 m 11,900
I-5 Washington Poor 1957 33.8 m 11,876
CSO TANK #6 SHADLE BLUFF Washington Good 2015 43.6 m 11,844
EAST SELAH Washington Fair 1967 31.7 m 11,833
EAST SELAH Washington Fair 1967 31.7 m 11,833
BNSF RR Washington Fair 1965 80.3 m 11,820
TERRAIN Washington Good 1933 43.3 m 11,814
I-5 Washington Fair 1972 97.5 m 11,783
I-205 Washington Good 1975 217.9 m 11,760
Thompson Creek Washington Good 2021 6.9 m 11,759
PARKER HORN Washington Good 1955 31.7 m 11,733
DRAINAGE SLOUGH Washington Good 2014 8.5 m 11,723
LITTLE SKOOKUM CREEK Washington Good 2016 6.7 m 11,722
GORST CREEK Washington Good 1988 15.8 m 11,713
SR 16 Washington Good 1988 410.6 m 11,713
WHISKEY CREEK Washington Fair 2006 11.3 m 11,706
S. CHANNEL SPOKANE RIVER Washington Good 1973 99.4 m 11,678
I-5 Washington Fair 1974 63.7 m 11,673
SKAGIT RIVER Washington Poor 1959 296.3 m 11,660
HARTS SLOUGH Washington Fair 1959 62.8 m 11,660
BATEY SLOUGH Washington Fair 1959 55.5 m 11,660
SLOUGH Washington Fair 1926 13.7 m 11,627

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.