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: E FK ISSAQUAH CREEK
2.9 E JCT SR 900, King, WA
Built 1976 Load: 35.4 t ADT: 33,574
I-405
FairOver: CEDAR RIVER
0.9 N JCT SR 515, King, WA
Built 1993 Load: 35.4 t ADT: 84,707
SW GRADY WAY
FairOver: SPRINGBROOK CREEK
0.7 MI E OF SR-181, King, WA
Built 1987 Load: 35.4 t ADT: 28,000
SW 27TH STREET
FairOver: SPRINGBROOK CREEK
0.2 MI WEST LIND AVE SW, King, WA
Built 2000 Load: 35.4 t ADT: 1,300
OAKESDALE AVE SW
FairOver: BLACK RIVER DRAIN
1.1 MI N OF I-405, King, WA
Built 1987 Load: 35.4 t ADT: 9,500
S JACKSON ST
FairOver: ST TUNNEL
S Jackson St WO 5th Ave S, King, WA
Built 1987 Load: 35.4 t ADT: 26,700
I-90
FairOver: CLE ELUM RIVER
26.0 E JCT SR 906, Kittitas, WA
Built 1962 Load: 35.4 t ADT: 16,386
I-90
FairOver: DRY RELIEF
10.1 E JCT I-82, Kittitas, WA
Built 1968 Load: 35.4 t ADT: 8,460
SR 14
FairOver: WOOD GULCH CR
32.8 E JCT US 97, Klickitat, WA
Built 1958 Load: 35.4 t ADT: 1,204
US 97
FairOver: COLUMBIA RIVER
OREGON LINE, Klickitat, WA
Built 1962 Load: 35.4 t ADT: 6,042
NO DATA ENTERED
FairOver: PINTO CREEK
ABOUT 10 MILES SOUTH OF H, Lewis, WA
Built 1954 Load: 35.4 t ADT: 59
BLANCHARD ROAD
FairOver: SCAMMON CREEK
1.0 SW CENTRALIA, Lewis, WA
Built 1955 Load: 35.4 t ADT: 173
SKATE CREEK ROAD
FairOver: COWLITZ OVERFLOW
0.5 NW PACKWOOD, Lewis, WA
Built 1955 Load: 35.4 t ADT: 1,359
MAGNUS RD
FairOver: KEARNEY CR
9.0 E ONALASKA, Lewis, WA
Built 1985 Load: 35.4 t ADT: 36
HOWE ROAD
FairOver: SKOOK CREEK
4.9 NW TOLEDO, Lewis, WA
Built 2003 Load: 35.4 t ADT: 40
SR 23
FairOver: NP RY
3.8 N WHITMAN CO, Lincoln, WA
Built 1967 Load: 35.4 t ADT: 1,334
I-90
FairOver: DOERSCHLAG RD
3.6 E ADAMS CO, Lincoln, WA
Built 1968 Load: 35.4 t ADT: 10,407
SR 23
FairOver: LORD'S VALLEY CREEK
13.4 N JCT SR 231, Lincoln, WA
Built 1968 Load: 35.4 t ADT: 367
US 101
FairOver: SKOOKUM CR NP RY
0.3 S JCT SR 108, Mason, WA
Built 1962 Load: 35.4 t ADT: 12,553
US 101
FairOver: SKOOKUM CR NP RY
0.3 S JCT SR 108, Mason, WA
Built 1962 Load: 35.4 t ADT: 12,553
COUNTY ROAD 9455
FairOver: LOST CREEK
17.4 MI.SE JCT.SH30, Okanogan, WA
Built 1958 Load: 35.4 t ADT: 52
SUMNER TAPPS HWY E
FairOver: LAKE TAPPS OUTFALL PSE
.117F N TAPPS HWY, Pierce, WA
Built 1977 Load: 35.4 t ADT: 7,675
NO DATA ENTERED
FairOver: RUSH CREEK
6 1/2 MILES SE OF JCT. FS, Skamania, WA
Built 1966 Load: 35.4 t ADT: 99
I-5
FairOver: STILLAGUAMISH R
0.7 N JCT SR 530, Snohomish, WA
Built 1971 Load: 35.4 t ADT: 43,620
LOCUST WAY
FairOver: SWAMP CREEK
1.9 N KING CO LINE, Snohomish, WA
Built 1993 Load: 35.4 t ADT: 3,514
I-90 S-W RAMP
FairOver: MCCLELLAN ST, BERNARD ST
1.7 E JCT US 195, Spokane, WA
Built 1967 Load: 35.4 t ADT: 9,130
I-82
FairOver: E POMONA RD
5.3 E KITTITAS CO, Yakima, WA
Built 1969 Load: 35.4 t ADT: 9,724
I-82
FairOver: COUNTY ROAD AND CANAL
3.7 E JCT US 97, Yakima, WA
Built 1979 Load: 35.4 t ADT: 14,023
I-82
FairOver: BN RR & DRAIN CANAL
0.5 E JCT SR 223, Yakima, WA
Built 1981 Load: 35.4 t ADT: 10,295
J A MOORE RD
FairOver: MASON CREEK
0.3S NE 299TH ST, Clark, WA
Built 1930 Load: 35.6 t ADT: 1,151
WOODINVILLE DUVALL
FairOver: DUVALL SLOUGH
0.8 MI W OF SR-203, King, WA
Built 1948 Load: 35.6 t ADT: 10,564
OAK FLAT ROAD
FairOver: LUNA CREEK
2.8 S JCT CR 34000, Klickitat, WA
Built 1981 Load: 35.6 t ADT: 32
SR 155
FairOver: OMAK CR
50.5 N DOUGLAS CO, Okanogan, WA
Built 1967 Load: 35.6 t ADT: 2,325
GRIPP ROAD
FairOver: SAMISH RIVER
0.1 E JCT PRAIRIE ROAD, Skagit, WA
Built 1976 Load: 35.6 t ADT: 679
NO DATA ENTERED
FairOver: NORTH FORK CISPUS RIVER
11 1/2 MILES SOUTH OF RAN, Lewis, WA
Built 1956 Load: 35.8 t ADT: 96
CAMAS MEADOWS DRV.
FairOver: DWYER CREEK
0.1 M E NE OF GOODWIN RD, Clark, WA
Built 2000 Load: 36.0 t ADT: 350
FERRY TRAFIC
FairOver: PUGET SOUND @ SEATTLE
W END MARION STREET, King, WA
Built 2019 Load: 36.0 t ADT: 12,000
N 27TH PLACE
FairOver: KENNYDALE CREEK
0.2 MI W OF I-405, King, WA
Built 2000 Load: 36.0 t ADT: 292
SR 119
FairOver: BIG CREEK
9.4 N JCT SR 101, Mason, WA
Built 1960 Load: 36.0 t ADT: 513
FAS ROUTE P240
FairOver: OKANOGAN RIVER
SENWS16T37NR27E, Okanogan, WA
Built 1999 Load: 36.0 t ADT: 2,816
US 101
FairOver: COLUMBIA R
3.37 S OREGON LINE, Pacific, WA
Built 1966 Load: 36.0 t ADT: 23,300
SR 11
FairOver: SAMISH RIVER
2.9 N JCT I-5, Skagit, WA
Built 1920 Load: 36.0 t ADT: 4,012
CUNNINGHAM RD
FairOver: DRY WASH
01.60 E CUNNINGHAM, Adams, WA
Built 1914 Load: 36.3 t ADT: 46
SR 260
FairOver: ESQUATZEL COULEE
6.3 E JCT SR 17, Franklin, WA
Built 1971 Load: 36.3 t ADT: 1,957
20 TH STREET
FairOver: PATAHA CREEK
0.2 S US 12 ON 20TH, Garfield, WA
Built 1965 Load: 36.3 t ADT: 75
SR 167
FairOver: 84TH AVE SOUTH
1.7 N JCT SR 516, King, WA
Built 1967 Load: 36.3 t ADT: 52,291
SR 509
FairOver: S 128TH ST
1.3 N JCT SR 518, King, WA
Built 1968 Load: 36.3 t ADT: 40,368
I-90
FairOver: RAGING RIVER
7.5 E JCT SR 900, King, WA
Built 1975 Load: 36.3 t ADT: 29,903
SR 169
FairOver: CEDAR RIVER
7.9 N JCT SR 18, King, WA
Built 1994 Load: 36.3 t ADT: 38,535
CUMBERLAND-KANASKE
FairOver: GREEN RIVER
4.25 MI E OF SR-169, King, WA
Built 1918 Load: 36.3 t ADT: 2,061
Showing 3,901-3,950 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 |