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

Total Bridges

8,808

Public highway bridges in Washington

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)

Washington42.39327883742053%37.76112624886467%GoodFairPoorStructurally Deficient
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
Structure
Progressive
Burden @ $100K
$27,040

05

Arkansas

4.71% top marginal rate
Structure
Progressive
Burden @ $100K
$5,544
Selected

53

Washington

4.81% top marginal rate
Structure
Progressive
Burden @ $100K
$8,808

18

Indiana

4.94% top marginal rate
Structure
Progressive
Burden @ $100K
$18,630

20

Kansas

5.25% top marginal rate
Structure
Progressive
Burden @ $100K
$23,867

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 Deficient

Over: NINE MILE CREEK

19.05 E SR 21, Ferry, WA

Built 1958 Load: 2.7 t ADT: 47

4TH ST

Poor

Over: MILL CREEK

4TH AND MILL CR, Walla Walla, WA

Built 1908 Load: 2.7 t ADT: 2,624

NO DATA ENTERED

Structurally Deficient

Over: WEST BRANCH LECLERC CREE

NO DATA ENTERED, Pend Oreille, WA

Built 1954 Load: 3.5 t ADT: 5

STEVENS RD. -IRRIG

Poor

Over: DRAIN

00.26 NO CHAMBERS, Yakima, WA

Built 1965 Load: 3.6 t ADT: 68

PEARL HILL RD

Poor

Over: JORDAN CREEK

1.44 E JCT HILAND ORCH RD, Douglas, WA

Built 1953 Load: 4.2 t ADT: 72

FARM ACCESS

Poor

Over: ROZA ID WASTEWAY NO 3

NR PARKER HEIGHTS, WA, Yakima, WA

Built 1955 Load: 4.4 t ADT: 10

All Bridges in Washington

Longfibre Road

Good

Over: Wide Hollow Creek

0.20 S of W Ahtanum Rd, Yakima, WA

Built 2016 Load: 42.4 t ADT: 55

DEKAY ROAD

Good

Over: WEST FORK HOQUIAM RIVER

0.0 W JCT US 101, Grays Harbor, WA

Built 1976 Load: 42.6 t ADT: 297

SOUTH UNION ROAD

Good

Over: CLOQUALLUM CREEK

00.8 E JCT 9740, Grays Harbor, WA

Built 1985 Load: 42.6 t ADT: 732

EAST HUMPTULIPS RD

Good

Over: BRITTAIN CREEK

02.8 E JCT SR101, Grays Harbor, WA

Built 1990 Load: 42.6 t ADT: 41

I-5

Good

Over: MILITARY RD

2.6 N JCT SR 18, King, WA

Built 1959 Load: 42.6 t ADT: 94,670

SR 202

Good

Over: SAMMAMISH R

0.4 E JCT SR 522, King, WA

Built 1963 Load: 42.6 t ADT: 8,987

I-5

Good

Over: SOUTHCENTER BLVD

5.2 N JCT SR 516, King, WA

Built 1965 Load: 42.6 t ADT: 112,452

SR 410

Good

Over: SLIPPERY CREEK

17.6 E JCT SR 164, King, WA

Built 1967 Load: 42.6 t ADT: 1,884

I-5

Good

Over: TERRAIN

3.9 N JCT SR 900, King, WA

Built 1969 Load: 42.6 t ADT: 4,737

SR 509

Good

Over: SO 168TH ST

5.7 N JCT SR 516, King, WA

Built 1979 Load: 42.6 t ADT: 28,216

PRATER ROAD

Good

Over: PARKE CREEK

00.07 S I-90, Kittitas, WA

Built 1968 Load: 42.6 t ADT: 363

SR 508

Good

Over: TILTON RIVER

25.0 E JCT I-5, Lewis, WA

Built 1988 Load: 42.6 t ADT: 1,171

BURRI RD.

Good

Over: LAKE CR.

3.0 SE CURTIS, Lewis, WA

Built 1988 Load: 42.6 t ADT: 47

Cloquallum Road

Good

Over: CLOQUALLUM CREEK

1.53 S JCT Highland rd, Mason, WA

Built 1996 Load: 42.6 t ADT: 627

I-705

Good

Over: CHEHALIS WESTERN RR

JCT I-5 & SR 7, Pierce, WA

Built 1988 Load: 42.6 t ADT: 14,255

BARKUBIEN RD E

Good

Over: CWA CANAL

1.0 E JCT 214 AV E, Pierce, WA

Built 1975 Load: 42.6 t ADT: 1,375

SR 20

Good

Over: TRANSMT. OIL PIPELINE

12.1 E ISLAND CO, Skagit, WA

Built 1972 Load: 42.6 t ADT: 18,697

194TH ST SE

Good

Over: WETLAND

0.2 E JCT SR 527, Snohomish, WA

Built 2003 Load: 42.6 t ADT: 144

BALD HILLS ROAD

Good

Over: LACKAMAS CREEK

7.7 m S Baldhills Rd, Thurston, WA

Built 2006 Load: 42.6 t ADT: 3,480

CASE RD EXT

Good

Over: ALLEN CREEK

0.6 m S of 113th Ave SW, Thurston, WA

Built 2007 Load: 42.6 t ADT: 28

ELOCHOMAN VLY RD

Good

Over: ELOCHOMAN RIVER

2.3 N JCT SR 4, Wahkiakum, WA

Built 1963 Load: 42.6 t ADT: 726

SR 9

Good

Over: S FK NOOKSACK RIVER

5.5 N SKAGIT CO, Whatcom, WA

Built 1987 Load: 42.6 t ADT: 2,122

SR 27

Good

Over: MCCOY CREEK

21.2 N JCT SR 272, Whitman, WA

Built 1964 Load: 42.6 t ADT: 1,176

NO DATA ENTERED

Good

Over: BEAR CREEK

3.2 MI NORTH OF HWY 101, Clallam, WA

Built 1998 Load: 42.7 t ADT: 75

ROAD

Good

Over: BOULDER CREEK

9.3 MI N OF HW 2/68 JCT, King, WA

Built 1999 Load: 42.7 t ADT: 44

ROAD

Good

Over: NORTH FORK TEANAWAY

NO DATA ENTERED, Kittitas, WA

Built 1962 Load: 42.7 t ADT: 25

NO DATA ENTERED

Good

Over: CLEAR FORK COWLITZ

0.7 MILE WEST OF HWY 12 (, Lewis, WA

Built 1993 Load: 42.7 t ADT: 65

RD. NO. 29

Good

Over: TEXAS CREEK

M.P. 0.7 RD. NO. 29, Skagit, WA

Built 1978 Load: 42.7 t ADT: 22

NO DATA ENTERED

Good

Over: PIN CREEK

23 1/2 MILES EAST OF JCT., Skamania, WA

Built 1973 Load: 42.7 t ADT: 99

ROAD

Good

Over: EAST SAN JUAN CREEK

11.0 MI N OF HWY 2, Snohomish, WA

Built 1993 Load: 42.7 t ADT: 44

BADGER CANYON ROAD

Good

Over: KID CANAL

0.30 W BADGER ROAD, Benton, WA

Built 1981 Load: 42.8 t ADT: 339

SMITH HOLLOW RD.

Good

Over: TUCANNON RIVER

0.1 S JCT SR 261, Columbia, WA

Built 2008 Load: 42.8 t ADT: 100

Martin Road

Good

Over: Wasteway

Martin road at Adams, Grant, WA

Built 2017 Load: 42.8 t ADT: 188

SR 99

Good

Over: SR 509

1.6 N JCT SR 516, King, WA

Built 2022 Load: 42.8 t ADT: 23,887

I-90

Good

Over: ROCKY RUN CREEK

2.1 E JCT SR 906, Kittitas, WA

Built 2012 Load: 42.8 t ADT: 17,475

SR 6

Good

Over: UNNAMED CREEK

21.8 E PACIFIC CO, Lewis, WA

Built 2021 Load: 42.8 t ADT: 7,052

SR 108

Good

Over: LITTLE SKOOKUM CREEK

7.7 E GRAYS HBR CO, Mason, WA

Built 2016 Load: 42.8 t ADT: 11,436

N. Shore Road

Good

Over: Cady Creek

3.55 W JCT SR300, Mason, WA

Built 2022 Load: 42.8 t ADT: 513

Salmon Creek Rd

Good

Over: Salmon Creek

3 miles NW of Okanogan, Okanogan, WA

Built 2022 Load: 42.8 t ADT: 430

SR 41

Good

Over: BNRR

0.3 S JCT US 2, Pend Oreille, WA

Built 2019 Load: 42.8 t ADT: 5,000

FS ROUTE NO. 1154

Good

Over: CAMPGROUND CREEK

CAMPGROUND CREEK, Pend Oreille, WA

Built 2010 Load: 42.8 t ADT: 40

8 AV E

Good

Over: MUCK CREEK

4.0 S JCT SR 7, Pierce, WA

Built 2017 Load: 42.8 t ADT: 3,725

Crown Ridge Blvd.

Good

Over: Portage Creek

Crown Ridge Blvd., Snohomish, WA

Built 1999 Load: 42.8 t ADT: 3,600

SR 542

Good

Over: RAZORHONE CREEK

29.2 E JCT SR 547, Whatcom, WA

Built 1945 Load: 42.8 t ADT: 608

SR 542

Good

Over: HEDRICK CREEK

9.1 E JCT SR 547, Whatcom, WA

Built 2017 Load: 42.8 t ADT: 1,903

I-82

Good

Over: WIDE HOLLOW CREEK

0.1 E JCT US 97, Yakima, WA

Built 1900 Load: 42.8 t ADT: 27,524

Hillcrest Drive

Good

Over: Roza canal

00.07 NE of Mountainview, Yakima, WA

Built 2013 Load: 42.8 t ADT: 1,300

NEVADA DR

Good

Over: WESTOVER CREEK

0.17 W SR 411 (MP 2.97), Cowlitz, WA

Built 2000 Load: 43.1 t ADT: 4,100

I-405 N-E RAMP

Good

Over: SR 520 RAMPS

4.6 N JCT I-90, King, WA

Built 2011 Load: 43.1 t ADT: 5,000

PIGEON SPRINGS RD

Good

Over: FRASE CREEK

1.2 N JCT SR 508, Lewis, WA

Built 2019 Load: 43.1 t ADT: 69

Showing 7,251-7,300 of 8,808 bridges

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
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.