Total Bridges
8,808
Public highway bridges in Washington
State profile · Below national median SD
Washington bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Washington — drawn straight from the FHWA National Bridge Inventory.
- 8,808
- Public bridges
- 42.4%
- Good condition
- 4.8%
- Poor condition
- 4.8%
- Structurally deficient
Good Condition
42.4%
3,734 bridges rated 7-9
-7.6pp vs 50% benchmark
Poor Condition
4.8%
424 bridges rated 0-4
Structurally Deficient
4.8%
424 bridges flagged for repair priority
-2.2pp vs national avg 7.0%
Washington vs national bridge condition
Washington — Good condition share 42.4%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Washington — Structurally deficient share 16.0%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Bridge inventory deck-condition mix — Washington (FHWA NBI)
Counties (39)
Adams 190 Asotin 29 Benton 173 Chelan 154 Clallam 152 Clark 228 Columbia 86 Cowlitz 167 Douglas 40 Ferry 54 Franklin 138 Garfield 54 Grant 314 Grays Harbor 365 Island 8 Jefferson 100 King 1364 Kitsap 119 Kittitas 311 Klickitat 91 Lewis 422 Lincoln 181 Mason 139 Okanogan 163 Pacific 120 Pend Oreille 72 Pierce 502 San Juan 13 Skagit 256 Skamania 120 Snohomish 516 Spokane 360 Stevens 81 Thurston 216 Wahkiakum 36 Walla Walla 200 Whatcom 358 Whitman 351 Yakima 565
Washington vs nearby ranks
Adjacent states on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Washington on the same metric.
06
California
4.60% top marginal rate
05
Arkansas
4.71% top marginal rate
53
Washington
4.81% top marginal rate
18
Indiana
4.94% top marginal rate
20
Kansas
5.25% top marginal rate
Bridges Needing Most Attention in Washington
Six lowest-condition bridges in Washington, ranked by composite NBI rating. Each is inspected at least every 24 months.
SILVER CK RD 00670
Structurally DeficientOver: NINE MILE CREEK
19.05 E SR 21, Ferry, WA
Built 1958 Load: 2.7 t ADT: 47
4TH ST
PoorOver: MILL CREEK
4TH AND MILL CR, Walla Walla, WA
Built 1908 Load: 2.7 t ADT: 2,624
NO DATA ENTERED
Structurally DeficientOver: WEST BRANCH LECLERC CREE
NO DATA ENTERED, Pend Oreille, WA
Built 1954 Load: 3.5 t ADT: 5
STEVENS RD. -IRRIG
PoorOver: DRAIN
00.26 NO CHAMBERS, Yakima, WA
Built 1965 Load: 3.6 t ADT: 68
PEARL HILL RD
PoorOver: JORDAN CREEK
1.44 E JCT HILAND ORCH RD, Douglas, WA
Built 1953 Load: 4.2 t ADT: 72
FARM ACCESS
PoorOver: ROZA ID WASTEWAY NO 3
NR PARKER HEIGHTS, WA, Yakima, WA
Built 1955 Load: 4.4 t ADT: 10
All Bridges in Washington
I-90
FairOver: GARDEN SPRINGS RD
4.7 E JCT SR 902, Spokane, WA
Built 1962 Load: 44.4 t ADT: 24,650
I-90 E-N RAMP
FairOver: BROWNE ST
1.9 E JCT US 195, Spokane, WA
Built 1967 Load: 44.4 t ADT: 9,924
SR 290 W-W RAMP
FairOver: 2ND AVE
0.2 E JCT I-90, Spokane, WA
Built 1974 Load: 44.4 t ADT: 5,240
OLD HWY 99 SW
FairOver: SCATTER CREEK
WEST OF TENINO NEAR TRAC, Thurston, WA
Built 1923 Load: 44.4 t ADT: 5,042
MARTIN WAY EAST
FairOver: MC ALLISTER CREEK
.23 m SW of Nisqually Cu, Thurston, WA
Built 2000 Load: 44.4 t ADT: 17,895
US 195
FairOver: UPRR (ABANDONED)
7.9 N JCT SR 23, Whitman, WA
Built 1964 Load: 44.4 t ADT: 4,027
I-82
FairOver: TEAR-FORSELL ROAD
2.1 E JCT SR 241, Yakima, WA
Built 1981 Load: 44.4 t ADT: 13,793
I-82
FairOver: TEAR-FORSELL ROAD
2.1 E JCT SR 241, Yakima, WA
Built 1981 Load: 44.4 t ADT: 13,793
NO DATA ENTERED
FairOver: CHURCH CREEK
NO DATA ENTERED, Mason, WA
Built 1965 Load: 44.5 t ADT: 50
NO DATA ENTERED
FairOver: STEVENS CREEK
NO DATA ENTERED, Grays Harbor, WA
Built 2005 Load: 44.7 t ADT: 10
WOODINVILLE DUVALL
FairOver: TUCK CREEK
0.9 MI W OF SR-203, King, WA
Built 1948 Load: 44.7 t ADT: 10,564
PACIFIC HIGHWAY
FairOver: DUWAMISH RIVER
0.1 MI N JCT SR599 & SR99, King, WA
Built 2000 Load: 44.7 t ADT: 22,406
LAKEMONT BLVD
FairOver: HILL SIDE
0.1 MI S OF JCT I-90, King, WA
Built 1998 Load: 44.7 t ADT: 16,261
SOUTH SHORE BRIDGE
FairOver: SOUTH SHORE ACCESS
LOWER GRANITE DAM, Garfield, WA
Built 1973 Load: 45.0 t ADT: 150
HAMPTON RD
FairOver: INTERMITTENT STREAM
00.17 MI E SR21, Adams, WA
Built 1952 Load: 45.4 t ADT: 8
MILL CREEK RD
FairOver: MILL CREEK
1.66 N SR 4 (MP 47.64), Cowlitz, WA
Built 1960 Load: 45.4 t ADT: 145
QUINAULT S SHORE
FairOver: FALLS CREEK
2.3 NE JCT US 101, Grays Harbor, WA
Built 1973 Load: 45.4 t ADT: 962
SR 99
FairOver: CLOVERDALE ST
2.5 N JCT SR 599, King, WA
Built 1959 Load: 45.4 t ADT: 27,446
SR 520
FairOver: PEAT BOG
0.2 E JCT I-405, King, WA
Built 1993 Load: 45.4 t ADT: 32,129
US 97
FairOver: SWAUK CR
12.9 N JCT SR 10, Kittitas, WA
Built 1974 Load: 45.4 t ADT: 2,602
SR 6 RAMP TO SB I5
FairOver: DILLENBAUGH CR
6.3 E JCT SR 603, Lewis, WA
Built 1976 Load: 45.4 t ADT: 3,450
BAKER ROAD
FairOver: VEACH CREEK
2.9 SW PACKWOOD, Lewis, WA
Built 1936 Load: 45.4 t ADT: 18
JORGENSEN RD.
FairOver: S.FORK NEWAUKUM RIVER
0.44 SE JCT SR 508, Lewis, WA
Built 1996 Load: 45.4 t ADT: 798
SR 213
FairOver: OKANOGAN RIVER
0.2 N JCT US 97, Okanogan, WA
Built 1962 Load: 45.4 t ADT: 678
COUNTY ROAD 1131
FairOver: WOLF CREEK
3.2 W.SR20 @ WNTHP, Okanogan, WA
Built 1963 Load: 45.4 t ADT: 2,423
304 ST E
FairOver: SOUTH CREEK TRIBUTARY
1.5 E JCT SR 7, Pierce, WA
Built 1955 Load: 45.4 t ADT: 5,600
I-405
FairOver: 228TH ST
1.3 N KING CO, Snohomish, WA
Built 1968 Load: 45.4 t ADT: 45,734
US 2
FairOver: SNOHOMISH R,HIGHLAND AVE
0.2 E JCT I-5, Snohomish, WA
Built 2001 Load: 45.4 t ADT: 39,701
128TH AVE SW
FairOver: BLACK RIVER
.23 W OF LITTLEROCK RD, Thurston, WA
Built 1968 Load: 45.4 t ADT: 3,047
183RD SW
FairOver: SCATTER CREEK
0.5 m W of Sargent Rd Int, Thurston, WA
Built 1949 Load: 45.4 t ADT: 2,813
SR 124
FairOver: ABANDONED RAILROAD
22.7 E JCT US 12, Walla Walla, WA
Built 1966 Load: 45.4 t ADT: 1,579
MYRA RD
FairOver: MILL CREEK
0.22 MI N ROSE ST, Walla Walla, WA
Built 2008 Load: 45.4 t ADT: 13,345
SR 9
FairOver: SLOUGH
9.2 N SKAGIT CO, Whatcom, WA
Built 1952 Load: 45.4 t ADT: 3,307
NEWHALEM CAMPGROUN
FairOver: SKAGIT RIVER
100 feet South of Highway, Whatcom, WA
Built 1958 Load: 45.4 t ADT: 200
I-82
FairOver: WINE COUNTRY RD, RR, PED
3.8 E JCT SR 241, Yakima, WA
Built 1979 Load: 45.4 t ADT: 13,793
COUNTY ROAD 1750
FairOver: SO FORK ASOTIN CREEK
3.3 MI SO JCT RD. 1100, Asotin, WA
Built 1957 Load: 45.7 t ADT: 1
ESTEB ROAD
FairOver: LITTLE KLICKITAT RIVER
1.1 S JCT SR 142, Klickitat, WA
Built 1965 Load: 45.7 t ADT: 27
WASHOUGAL RIVER RD
FairOver: BURLINGTON NORTHERN RY
0.2 E JCT SR 14, Clark, WA
Built 1965 Load: 46.0 t ADT: 8,727
SEABECK HIGHWAY
FairOver: BIG BEEF CREEK
.5 W JCT ANDERSON HILL RD, Kitsap, WA
Built 1974 Load: 46.0 t ADT: 6,604
Sullivan Lake Rd
FairOver: Outlet Creek
1/4 m s/o Ranger Station, Pend Oreille, WA
Built 1995 Load: 46.0 t ADT: 450
FOSTER ROAD
FairOver: ELOCHOMAN RIVER
0.5 W JCT SR 409, Wahkiakum, WA
Built 1977 Load: 46.0 t ADT: 174
Columbia Ctr. Blvd
FairOver: BNSF RR
.05 N. JCT CLEARWATER AVE, Benton, WA
Built 2004 Load: 46.3 t ADT: 26,932
I-182
FairOver: N 20TH AVE
6.8 E BENTON CO, Franklin, WA
Built 1968 Load: 46.3 t ADT: 19,145
US 101
FairOver: HUMPTULIPS OVERFLOW
21.3 N JCT SR 109, Grays Harbor, WA
Built 1950 Load: 46.3 t ADT: 2,251
US 12
FairOver: NP RY
10.0 E JCT SR 107, Grays Harbor, WA
Built 1964 Load: 46.3 t ADT: 12,029
WEST BOUNDARY ROAD
FairOver: SALMON RIVER
4.4 MI NORTH OF HWY 101, Jefferson, WA
Built 1979 Load: 46.3 t ADT: 50
INTERURBAN AVE S
FairOver: GREEN RIVER
0.1 N JCT I-405, King, WA
Built 1963 Load: 46.3 t ADT: 32,860
I-5 RAMP
FairOver: AIRPORT WAY S
5.9 N JCT SR 900, King, WA
Built 1967 Load: 46.3 t ADT: 3,824
W EMERSON ST
FairOver: RR TRACKS, ALLEY
1500 W Emerson St, King, WA
Built 1949 Load: 46.3 t ADT: 19,800
SHYBEAR WY NW
FairOver: WETLAND 1 TRIBUTARY
0.15 M S OF NW TALUS DR, King, WA
Built 2000 Load: 46.3 t ADT: 280
Showing 4,351-4,400 of 8,808 bridges
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |