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
SNOHOMISH R. Washington Good 1983 109.7 m 16,383
THOMAS CREEK Washington Fair 2000 38.6 m 16,353
I-90 RAMP Washington Fair 1958 45.7 m 16,352
LITTLE MINTER CREEK Washington Good 2021 6.1 m 16,302
MINTER CREEK Washington Good 2020 48.2 m 16,302
SNOHOMISH RIVER Washington Poor 1927 816.9 m 16,286
SNOHOMISH RIVER Washington Poor 1954 751.3 m 16,286
SR 529/E MARINE VIEW DR Washington Good 1955 19.5 m 16,286
SR 529/E MARINE VIEW DR Washington Good 1955 19.5 m 16,286
SR 305 Washington Good 1993 38.1 m 16,274
SR 305 Washington Good 1993 41.1 m 16,274
PEDESTRAIN TRAIL Washington Fair 1957 74.1 m 16,274
I-5 Washington Good 2011 53.6 m 16,270
SR 16 Washington Good 1984 69.5 m 16,262
RAVINE Washington Fair 1998 30.2 m 16,261
HILL SIDE Washington Fair 1998 256.3 m 16,261
SR 202 BNRR Washington Good 2007 132.6 m 16,261
MEADOW CREEK Washington Good 2008 43.9 m 16,214
I-90 Washington Fair 1956 36.0 m 16,203
I-90 Washington Good 1978 36.0 m 16,203
YAKIMA RIVER Washington Fair 1967 206.0 m 16,152
YAKIMA RIVER Washington Fair 1967 206.0 m 16,152
SKOOKUMCHUCK RIVER Washington Good 1968 38.1 m 16,139
SIMDARS RD Washington Good 1999 42.7 m 16,083
SR 823 (N 1ST ST) Washington Good 1969 64.6 m 16,048
SR 823 (N 1ST ST) Washington Good 1969 64.6 m 16,048
WISHKAH RIVER Washington Poor 1925 110.6 m 16,009
DUWAMISH RIVER Washington Good 2014 280.7 m 16,000
CASCADE CANAL OVERFLOW Washington Fair 1967 97.8 m 15,974
CASCADE CANAL OVERFLOW Washington Fair 1967 97.8 m 15,974
YAKIMA RIVER Washington Fair 1967 181.4 m 15,974
DRY CREEK Washington Poor 1967 118.9 m 15,974
YAKIMA RIVER Washington Fair 1967 181.4 m 15,974
DRY CREEK Washington Poor 1967 118.9 m 15,974
PARADISE CREEK Washington Fair 1985 11.3 m 15,937
S FORK PALOUSE RIVER Washington Good 1992 27.4 m 15,937
I-5 Washington Good 1963 88.4 m 15,928
SR 99 NB SR 99 NB/RAMP Washington Good 2015 54.6 m 15,919
FLETT CREEK Washington Good 1972 13.1 m 15,914
BRICKYARD CREEK Washington Good 2000 16.5 m 15,887
DEER CREEK Washington Good 1957 21.6 m 15,878
NOOKSACK R OVERFLOW Washington Good 2009 7.6 m 15,862
NOOKSACK R OVERFLOW Washington Good 2009 7.6 m 15,862
SR 524 E-S I-5 S-E Washington Good 1999 74.4 m 15,848
SALMON CREEK Washington Good 1994 33.5 m 15,818
CRANBERRY CREEK Washington Fair 1957 21.6 m 15,815
JOHNS CREEK Washington Fair 1948 25.0 m 15,751
GREEN RIVER Washington Fair 1968 57.9 m 15,698
WILSON CREEK Washington Fair 1967 36.0 m 15,658
WILSON CREEK Washington Poor 1967 36.0 m 15,658

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.