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
KLINGER STREET
FairOver: BRICKYARD CREEK
0.2 MI N of COOK ROAD, Skagit, WA
Built 2002 Load: 43.4 t ADT: 1,620
WOBURN STREET
FairOver: WHATCOM CREEK
0.1 MI. S. IOWA ST., Whatcom, WA
Built 1989 Load: 43.4 t ADT: 11,900
EVERGREEN BLVD.
FairOver: BLANDFORD DRIVE
0.0 E BLANDFORD DR, Clark, WA
Built 1969 Load: 43.5 t ADT: 3,785
I-90
FairOver: WEBER COULEE
12.2 E JCT SR 17, Grant, WA
Built 1967 Load: 43.5 t ADT: 5,894
I-90
FairOver: WEBER COULEE
12.2 E JCT SR 17, Grant, WA
Built 1967 Load: 43.5 t ADT: 5,894
I-5
FairOver: TERRAIN
4.5 N JCT SR 900, King, WA
Built 1966 Load: 43.5 t ADT: 120,321
SR 520 W-N RAMP
FairOver: NORTHUP WAY
JCT I-405, King, WA
Built 1993 Load: 43.5 t ADT: 12,263
51ST AVE SOUTH
FairOver: SOUTHCENTER BLVD
0.06 MI N SR-518 UC BR, King, WA
Built 1996 Load: 43.5 t ADT: 4,180
I-90
FairOver: LITTLE CREEK
21.9 E JCT SR 906, Kittitas, WA
Built 1962 Load: 43.5 t ADT: 16,139
I-90
FairOver: HIGHLINE CANAL
4.8 E JCT SR 970, Kittitas, WA
Built 1965 Load: 43.5 t ADT: 14,112
I-90
FairOver: HIGHLINE CANAL
4.8 E JCT SR 970, Kittitas, WA
Built 1965 Load: 43.5 t ADT: 14,112
DREWS PRAIRIE ROAD
FairOver: LACAMAS CREEK
1.0 W TOLEDO, Lewis, WA
Built 1971 Load: 43.5 t ADT: 309
TUNK VALLEY RD
FairOver: OKANOGAN RIVER
0.32 M E US 97, Okanogan, WA
Built 1969 Load: 43.5 t ADT: 650
STAUFFER ROAD
FairOver: GREEN CREEK
0.79 S JCT SR 6, Pacific, WA
Built 1917 Load: 43.5 t ADT: 178
I-5
FairOver: HILL DITCH
2.1 N SNOHOMISH CO, Skagit, WA
Built 1957 Load: 43.5 t ADT: 31,960
I-5
FairOver: DRAINAGE DITCH
0.6 N JCT SR 11, Skagit, WA
Built 1963 Load: 43.5 t ADT: 26,230
I-5
FairOver: JOE LEARY SLOUGH
0.6 N JCT SR 11, Skagit, WA
Built 1964 Load: 43.5 t ADT: 26,230
SR 525
FairOver: MAPLE RD & ASH WAY
0.4 N JCT I-5, Snohomish, WA
Built 1983 Load: 43.5 t ADT: 32,482
I-90
FairOver: GARDEN SPRINGS RD
4.7 E JCT SR 902, Spokane, WA
Built 1962 Load: 43.5 t ADT: 24,650
LITTLEROCK RD.
FairOver: CREEK
3.9 N SR 12, Thurston, WA
Built 1951 Load: 43.5 t ADT: 3,164
83RD AVE S
FairOver: CATTLE CROSSING
0.7 MI E OF SR-167, King, WA
Built 1990 Load: 43.7 t ADT: 18,758
SW 34TH STREET
FairOver: SPRINGBROOK CREEK
0.2 MI WEST LIND AVE, King, WA
Built 2007 Load: 43.7 t ADT: 1,900
NO DATA ENTERED
FairOver: SKATE CREEK
5.7 MILES NE OF HWY12 ON, Lewis, WA
Built 1990 Load: 44.0 t ADT: 371
DIABLO CAMP ROAD
FairOver: DIABLO TAILRACE
Diablo Powerhouse, King, WA
Built 1962 Load: 44.1 t ADT: 205
HAYWARD ROAD
FairOver: HILINE CANAL
00.78 N SR 10, Kittitas, WA
Built 1931 Load: 44.1 t ADT: 76
SR 9
FairOver: W FK NOOKACHAMPS CR
0.1 N JCT SR 538, Skagit, WA
Built 1920 Load: 44.1 t ADT: 6,059
FRANCIS ROAD
FairOver: NOOKACHAMPS CREEK
2.8 W JCT SR9, Skagit, WA
Built 1979 Load: 44.1 t ADT: 4,694
BLACK CANYON ROAD
FairOver: BLACK CANYON CREEK
NO DATA ENTERED, Okanogan, WA
Built 1965 Load: 44.2 t ADT: 50
I-82
FairOver: COLUMBIA RIVER
1.0 E JCT SR 14, Benton, WA
Built 1988 Load: 44.4 t ADT: 12,412
SR 397
FairOver: BNSF RR
16.5 N JCT I-82, Benton, WA
Built 1965 Load: 44.4 t ADT: 11,543
SR 503
FairOver: EAST FORK LEWIS RIVER
2.0 N JCT SR 502, Clark, WA
Built 1967 Load: 44.4 t ADT: 18,209
SR 28
FairOver: CRAB CREEK
13.2 E JCT SR 17, Grant, WA
Built 1969 Load: 44.4 t ADT: 580
US 101
FairOver: WEST FORK HOQUIAM RIVER
9.2 N JCT SR 109, Grays Harbor, WA
Built 1949 Load: 44.4 t ADT: 2,205
I-5
FairOver: TERRAIN
2.1 N JCT I-90, King, WA
Built 1962 Load: 44.4 t ADT: 10,636
I-5
FairOver: TERRAIN
2.1 N JCT I-90, King, WA
Built 1964 Load: 44.4 t ADT: 3,999
I-90
FairOver: BNRR (REMOVED)
3.0 E JCT SR 202, King, WA
Built 1976 Load: 44.4 t ADT: 20,098
I-90
FairOver: BNRR (REMOVED)
3.0 E JCT SR 202, King, WA
Built 1976 Load: 44.4 t ADT: 20,098
I-90
FairOver: EAST CHANNEL-LK WASH
5.9 E JCT I-5, King, WA
Built 1981 Load: 44.4 t ADT: 61,610
YESLER WAY
FairOver: 5TH AVE S
5th Ave S & Yesler Way, King, WA
Built 1912 Load: 44.4 t ADT: 7,215
CELL PHONE RAMP
FairOver: S 170TH
1 MI S OF SR 518, King, WA
Built 1972 Load: 44.4 t ADT: 4,300
ANDERSON RD
FairOver: MERCER CREEK
00.38 N OF UMPTANUM, Kittitas, WA
Built 1987 Load: 44.4 t ADT: 2,648
CRAIG RD.
FairOver: SKATE CREEK
1.5 NW PACKWOOD, Lewis, WA
Built 1978 Load: 44.4 t ADT: 125
ELK PRAIRIE ROAD
FairOver: FERN CREEK
8.5 E LEWIS CO, Pacific, WA
Built 1916 Load: 44.4 t ADT: 85
SR 410
FairOver: PSPL CO CANAL
1.1 E JCT SR 165, Pierce, WA
Built 1949 Load: 44.4 t ADT: 21,581
SR 512
FairOver: PUYALLUP R & CITY ST'S
2.2 E JCT SR 161, Pierce, WA
Built 1975 Load: 44.4 t ADT: 43,610
SR 530
FairOver: MONTAGUE CREEK
14.2 E JCT SR 9, Snohomish, WA
Built 1968 Load: 44.4 t ADT: 3,499
DUBUQUE RD
FairOver: WEST FORK WOODS CREEK
8.8 NE JCT SR 2, Snohomish, WA
Built 1935 Load: 44.4 t ADT: 2,838
SR 529
FairOver: BNRR
3.6 N JCT SR 529 SPUR, Snohomish, WA
Built 1993 Load: 44.4 t ADT: 5,671
ROBE-MENZEL ROAD
FairOver: POND OVERFLOW
0.6 SE JCT SR 92, Snohomish, WA
Built 1997 Load: 44.4 t ADT: 2,828
228TH ST SW
FairOver: NORTH CREEK
0.5 E INT I405, Snohomish, WA
Built 1999 Load: 44.4 t ADT: 19,782
Showing 4,301-4,350 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 |