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
SR 202 OVER SKUNK CREEK Washington Good 2024 21.1 m 10,490
I-90 Washington Fair 1962 77.1 m 10,477
I-90 Washington Fair 1962 76.8 m 10,477
China Ditch Washington Fair 2009 31.1 m 10,460
CLEAR CREEK Washington Good 2006 21.3 m 10,457
SR 410 RAMPS Washington Good 2021 42.8 m 10,448
SR 410 RAMPS Washington Good 1967 66.4 m 10,448
SLOUGH Washington Fair 1945 15.8 m 10,445
SLOUGH Washington Good 1945 17.7 m 10,445
SLOUGH Washington Good 1945 21.0 m 10,445
CHERRY CREEK Washington Poor 1946 30.8 m 10,445
SLOUGH Washington Good 1984 19.5 m 10,445
C.I.D. CANAL Washington Fair 1956 7.3 m 10,411
I-5 Washington Fair 1961 82.9 m 10,381
WHATCOM CREEK Washington Good 2022 20.4 m 10,360
I-5 SOUND TRANSIT RR Washington Good 1965 100.3 m 10,356
SPRINGBROOK CREEK Washington Good 1986 41.8 m 10,341
CITY STREET NPRR Washington Fair 1959 339.5 m 10,336
COLLECTOR DISTRIBUTOR Washington Good 2004 114.0 m 10,323
15TH ST-PLRR I-705 Washington Good 1987 379.9 m 10,307
MCDONALD CREEK Washington Good 2013 91.4 m 10,300
SIEBERT CREEK Washington Good 2021 53.9 m 10,300
MCDONALD CREEK Washington Good 2013 91.4 m 10,300
SIEBERT CREEK Washington Good 1999 198.1 m 10,300
RAMP NB I-5 TO 50TH Washington Good 1961 13.5 m 10,276
GREEN RIVER Washington Fair 1973 62.8 m 10,269
WOODS CREEK Washington Good 2004 25.0 m 10,268
S FK WILLAPA RIVER Washington Poor 1966 182.9 m 10,253
I-5 Washington Fair 1959 87.8 m 10,241
RAILROAD Washington Good 1989 53.3 m 10,220
RAILROAD Washington Fair 1964 53.3 m 10,220
COFFEE CREEK Washington Good 1955 7.3 m 10,213
PUGET SOUND @ SEATTLE Washington Good 1990 27.4 m 10,212
PUGET SOUND @ SEATTLE Washington Fair 2019 193.5 m 10,212
NOOKSACK R OVERFLOW Washington Poor 1994 11.6 m 10,205
NOOKSACK RIVER Washington Good 1994 142.0 m 10,205
HATCH ROAD Washington Good 2001 66.4 m 10,193
HATCH ROAD Washington Good 2001 78.0 m 10,193
LAKE LOIS Washington Good 2014 7.3 m 10,192
SR 23 Washington Fair 1967 35.1 m 10,191
SR 23 Washington Fair 1967 35.1 m 10,191
SLOUGH Washington Fair 1945 17.7 m 10,190
SAMMAMISH RIVER Washington Fair 1968 92.4 m 10,166
HANSEN CREEK Washington Good 1949 15.2 m 10,162
MILLER CREEK Washington Good 2005 14.9 m 10,150
BROWNE ST Washington Fair 1967 150.0 m 10,132
SR 224 Washington Fair 1973 50.9 m 10,124
SR 224 Washington Fair 1973 50.9 m 10,124
WILDCAT CREEK Washington Good 2024 27.7 m 10,124
E FK WILDCAT CR Washington Good 1962 32.3 m 10,124

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.