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
CEDAR GROVE RD
FairOver: CEDAR RIVER
0.2 MI E OF SR-169, King, WA
Built 1962 Load: 36.3 t ADT: 5,971
NE 85TH STREET
FairOver: SAMMAMISH RIVER
0.5 MI W OF JCT SR-202, King, WA
Built 1985 Load: 36.3 t ADT: 12,000
1st Avenue ramp
FairOver: S Spokane St
1st Ave S at S Spokane St, King, WA
Built 2014 Load: 36.3 t ADT: 2,030
SR 3
FairOver: ANDERSON HILL RD
9.9 N JCT SR 304, Kitsap, WA
Built 1972 Load: 36.3 t ADT: 25,087
SR 3
FairOver: ANDERSON HILL RD
9.9 N JCT SR 304, Kitsap, WA
Built 1978 Load: 36.3 t ADT: 25,087
I-90
FairOver: W NELSON SIDING RD
19.3 E JCT SR 906, Kittitas, WA
Built 1962 Load: 36.3 t ADT: 15,915
I-90
FairOver: W NELSON SIDING RD
19.3 E JCT SR 906, Kittitas, WA
Built 1962 Load: 36.3 t ADT: 15,915
ROAD
FairOver: LOG CREEK
NO DATA ENTERED, Kittitas, WA
Built 1961 Load: 36.3 t ADT: 50
THRALL ROAD
FairOver: CHERRY CREEK
00.05 E NO. 6 ROAD, Kittitas, WA
Built 1969 Load: 36.3 t ADT: 2,284
SR 6
FairOver: CHEHALIS RIVER
21.9 E PACIFIC CO, Lewis, WA
Built 1971 Load: 36.3 t ADT: 7,052
NO DATA ENTERED
FairOver: SMITH CREEK
4.3 MILES SE OF JCT HWY 1, Lewis, WA
Built 1969 Load: 36.3 t ADT: 20
NORTH FORK RD
FairOver: N.FORK NEWAUKUM RIVER
4.5 NE FOREST, Lewis, WA
Built 1980 Load: 36.3 t ADT: 441
TWIN OAKS ROAD
FairOver: STEARNS CR.
2.5 SW CHEHALIS, Lewis, WA
Built 1979 Load: 36.3 t ADT: 923
MINKLER ROAD
FairOver: OLEQUA CREEK
1.0 W ST. URBAN, Lewis, WA
Built 1951 Load: 36.3 t ADT: 691
SR 23
FairOver: FIRST AVE
3.7 N WHITMAN CO, Lincoln, WA
Built 1968 Load: 36.3 t ADT: 1,334
SR 167
FairOver: CITY STREETS & RR
0.2 N JCT SR 410, Pierce, WA
Built 1973 Load: 36.3 t ADT: 29,656
SOUTH SKAGIT HWY
FairOver: LORETTA CREEK
11 MI E JCT SR9, Skagit, WA
Built 1961 Load: 36.3 t ADT: 825
KNAPP ROAD
FairOver: NOOKACHAMPS CREEK
0.1 E JCT SR 9, Skagit, WA
Built 1977 Load: 36.3 t ADT: 405
NO DATA ENTERED
FairOver: LOST CREEK
ABOUT 13 1/2 MILES SOUTHW, Skamania, WA
Built 1955 Load: 36.3 t ADT: 30
US 2
FairOver: EBEY SLOUGH
1.0 E JCT I-5, Snohomish, WA
Built 1993 Load: 36.3 t ADT: 38,740
MOUNTAIN LOOP HWY
FairOver: S.F. STILLAGUAMISH RIVER
1.8 NE JCT SR 92, Snohomish, WA
Built 1934 Load: 36.3 t ADT: 6,285
108TH ST. NE
FairOver: CENTENNIAL TRAIL
0.6 W SR9, Snohomish, WA
Built 1998 Load: 36.3 t ADT: 5,481
I-5
FairOver: OWR N RR
1.0 N JCT US 101, Thurston, WA
Built 1957 Load: 36.3 t ADT: 137,442
US 101
FairOver: MUD BAY
1.3 S JCT SR 8, Thurston, WA
Built 1958 Load: 36.3 t ADT: 20,937
HENDERSON BLVD
FairOver: DESCHUTES RIVER
0.55 mile S Yelm Hwy, Thurston, WA
Built 1961 Load: 36.3 t ADT: 13,945
Madrona Beach Road
FairOver: PERRY CREEK
0.6 W Mud Bay Rd, Thurston, WA
Built 1958 Load: 36.3 t ADT: 1,325
STEILACOOM ROAD
FairOver: MCALLISTER CREEK
2.0 m S of I-5 on ramp, Thurston, WA
Built 1964 Load: 36.3 t ADT: 1,384
SR 4
FairOver: W FK SKAMOKAWA CR
22.7 E JCT SR 401, Wahkiakum, WA
Built 1938 Load: 36.3 t ADT: 1,224
SR 20
FairOver: LILLIAN CR
19.8 E SKAGIT CO, Whatcom, WA
Built 1971 Load: 36.3 t ADT: 1,257
BIRCH BAY LYNDEN
FairOver: BERTRAND CR
00.3 W.RATHBONE RD., Whatcom, WA
Built 1949 Load: 36.3 t ADT: 8,369
BAKER LK RD
FairOver: SANDY CR
03.85 N SKAGIT LINE, Whatcom, WA
Built 1957 Load: 36.3 t ADT: 916
US 195
FairOver: UNION FLAT CREEK
9.4 N JCT US 195 SP, Whitman, WA
Built 1988 Load: 36.3 t ADT: 5,449
SR 823
FairOver: YAKIMA RIVER
0.1 N JCT I-82, Yakima, WA
Built 1947 Load: 36.3 t ADT: 2,615
US 97
FairOver: SATUS CREEK
4.0 N KLICKITAT CO, Yakima, WA
Built 1975 Load: 36.3 t ADT: 3,968
I-82
FairOver: UP RR
8.9 E JCT SR 223, Yakima, WA
Built 1982 Load: 36.3 t ADT: 9,325
CUNNINGHAM RD
FairOver: EAST LOW CANAL 4202+20
01.61 MI E BOOKER RD., Adams, WA
Built 1971 Load: 36.6 t ADT: 478
SACKMAN RD
FairOver: DRY WASH
1.26 MI East of Dewald RD, Adams, WA
Built 1939 Load: 36.6 t ADT: 27
HUNT ROAD
FairOver: CHIMACUM CREEK
0.15 MI. NE SR-116, Jefferson, WA
Built 1971 Load: 36.6 t ADT: 140
W VALLEY HWY
FairOver: MILL CR
0.7 MI S JCT SR-516, King, WA
Built 1915 Load: 36.6 t ADT: 24,100
SR 410
FairOver: GREENWATER RIVER
17.9 E JCT SR 164, King, WA
Built 1932 Load: 36.6 t ADT: 1,884
MILL STREET
FairOver: SALMON CREEK
.31 MI WEST OF SR215, Okanogan, WA
Built 2006 Load: 36.6 t ADT: 450
THOMAS ROAD
FairOver: SAMISH RIVER
0.3 N JCT ALLEN WEST RD, Skagit, WA
Built 1973 Load: 36.6 t ADT: 216
RIVERSIDE DRIVE
FairOver: HOAG & STEWARD ST
RIVERSIDE DR JCT HOAG ST, Skagit, WA
Built 2003 Load: 36.6 t ADT: 21,640
ALLEN ROAD
FairOver: CHAMOKANE CREEK
.07 W SPRINGDALE-HUNTERS, Stevens, WA
Built 1966 Load: 36.6 t ADT: 65
RD. NO. 20
FairOver: S FORK SAUK RIVER
MP 31.2 RD. NO. 20, Snohomish, WA
Built 1978 Load: 36.8 t ADT: 140
CALLOWAY RD
FairOver: DRY WASH
.09E SR261, Adams, WA
Built 1900 Load: 36.9 t ADT: 26
LYNX CREEK ROAD
FairOver: HALL CREEK
00.02 W HALL CRK RD, Ferry, WA
Built 1989 Load: 36.9 t ADT: 116
UTOPIA ROAD
FairOver: BLACK SLOUGH
0.5 E JCT Hoehn Road, Skagit, WA
Built 1984 Load: 36.9 t ADT: 77
SO SKAGIT HWY
FairOver: MILL CREEK
17.0 E JCT SR9, Skagit, WA
Built 1969 Load: 36.9 t ADT: 635
FRIDAY CREEK ROAD
FairOver: FRIDAY CREEK
0.59 N JCT OLD 99, Skagit, WA
Built 1979 Load: 36.9 t ADT: 184
Showing 3,951-4,000 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 |