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

SR 12

Good

Over: NP RY

10.0 E JCT SR 107, Grays Harbor, WA

Built 1964 Load: 46.3 t ADT: 12,029

COUGAR SMITH ROAD

Good

Over: MIDDLE FORK SATSOP RIVER

0.2 NW JCT 7365, Grays Harbor, WA

Built 2006 Load: 46.3 t ADT: 307

DEKAY ROAD

Good

Over: POLSON CREEK

1.4 W JCT US 101, Grays Harbor, WA

Built 2006 Load: 46.3 t ADT: 192

DEKAY ROAD

Good

Over: POLSON CREEK

0.8 W JCT US 101, Grays Harbor, WA

Built 2006 Load: 46.3 t ADT: 209

WYNOOCHE VALLEY RD

Good

Over: SAVE CREEK

28.4 MILES N. SR12, Grays Harbor, WA

Built 2002 Load: 46.3 t ADT: 329

US 101

Good

Over: DOSEWALLIPS RIVER

21.5 S JCT SR 104, Jefferson, WA

Built 2000 Load: 46.3 t ADT: 3,222

I-5 NBCD RAMP

Good

Over: TERRAIN

JCT I-90, King, WA

Built 1965 Load: 46.3 t ADT: 40,483

SR 518

Good

Over: 42ND AVE S

0.4 E JCT SR 99, King, WA

Built 1966 Load: 46.3 t ADT: 60,822

I-90

Good

Over: ISSAQUAH CREEK

0.9 E JCT SR 900, King, WA

Built 1970 Load: 46.3 t ADT: 44,695

I-90

Good

Over: ISSAQUAH CREEK

0.9 E JCT SR 900, King, WA

Built 1970 Load: 46.3 t ADT: 44,695

US 2

Good

Over: SLOUGH

SNOHOMISH CO LINE, King, WA

Built 1986 Load: 46.3 t ADT: 5,659

US 2

Good

Over: STREAM

0.3 E SNOHOMISH CO, King, WA

Built 1986 Load: 46.3 t ADT: 5,659

SR 18 WESTBOUND

Good

Over: SOOSETTE CREEK

4.7 E JCT SR 164, King, WA

Built 1997 Load: 46.3 t ADT: 27,460

E-N RAMP

Good

Over: 4TH AVE, BUILDINGS

0.2 W JCT I-90, King, WA

Built 2003 Load: 46.3 t ADT: 606

SR 18

Good

Over: TAYLOR CREEK

1.6 E JCT SR 169, King, WA

Built 2004 Load: 46.3 t ADT: 16,302

SR 518 EB OFF RAMP

Good

Over: 8TH AVE

0.2 E JCT SR 509, King, WA

Built 2018 Load: 46.3 t ADT: 5,000

SR 522

Good

Over: SWAMP CREEK

2.1 E JCT SR 104, King, WA

Built 2008 Load: 46.3 t ADT: 34,238

ROAD

Good

Over: GREEN RIVER

7.0 MI W OF TACOMA PASS, King, WA

Built 1963 Load: 46.3 t ADT: 14

S 277TH ST

Good

Over: BNSF RR

0.5 MI EAST OF SR-167, King, WA

Built 2003 Load: 46.3 t ADT: 26,000

S 156TH WAY

Good

Over: MILLER CREEK

0.5 MI S OF SR-518, King, WA

Built 2005 Load: 46.3 t ADT: 10,150

N ForkTeanaway Rd

Good

Over: JACK CREEK

05.36 N. W.F. TEAN.RD., Kittitas, WA

Built 2009 Load: 46.3 t ADT: 313

SR 506

Good

Over: LACAMAS CREEK

7.0 E COWLITZ CO, Lewis, WA

Built 2020 Load: 46.3 t ADT: 2,052

SR 106

Good

Over: SKOKOMISH RIVER

1.4 E JCT US 101, Mason, WA

Built 1987 Load: 46.3 t ADT: 1,584

AGATE RD

Good

Over: CAMPBELL CREEK

3.13 S JCT SR3, Mason, WA

Built 1993 Load: 46.3 t ADT: 3,036

OCR 3683

Good

Over: NESPELEM RIVER

5.1 mi N. SR 155, Okanogan, WA

Built 2022 Load: 46.3 t ADT: 51

SR 4

Good

Over: NASELLE RIVER

1.3 E JCT SR 401, Pacific, WA

Built 1987 Load: 46.3 t ADT: 2,130

SR 162

Good

Over: S PRAIRIE CREEK

12.8 E JCT SR 410, Pierce, WA

Built 1969 Load: 46.3 t ADT: 8,532

PIONEER HWY

Good

Over: FISHER SLOUGH

1.5 SW JCT INTERSTATE 5, Skagit, WA

Built 1987 Load: 46.3 t ADT: 9,516

SR 20

Good

Over: HIGGINS SLOUGH

0.1 E JCT SR 536, Skagit, WA

Built 2007 Load: 46.3 t ADT: 13,243

SR 20

Good

Over: HIGGINS SLOUGH

1.2 E JCT SR 356, Skagit, WA

Built 2007 Load: 46.3 t ADT: 14,246

ROAD

Good

Over: JACKMAN CREEK

NO DATA ENTERED, Skagit, WA

Built 1985 Load: 46.3 t ADT: 10

STEIACOOM ROAD

Good

Over: HARTMAN CREEK

1 MILE E DUTERROW INT, Thurston, WA

Built 2001 Load: 46.3 t ADT: 1,001

188th Ave SW

Good

Over: OVERFLOW

1st Bridge E of Casino, Thurston, WA

Built 2002 Load: 46.3 t ADT: 1,114

128TH AV SW

Good

Over: UNNAMED STREAM

0.08 MILE W LITTLEROCK RD, Thurston, WA

Built 2007 Load: 46.3 t ADT: 3,047

SR 4

Good

Over: RANGILA SLOUGH

6.4 E JCT SR 401, Wahkiakum, WA

Built 1990 Load: 46.3 t ADT: 1,472

HEMMI RD W

Good

Over: TEN MILE CR

00.3 E. ALDRICH RD., Whatcom, WA

Built 1986 Load: 46.3 t ADT: 441

MAIN ST

Good

Over: PEPIN CREEK

100' WEST OF DAHLIA ST, Whatcom, WA

Built 2022 Load: 46.3 t ADT: 6,100

NO DATA ENTERED

Good

Over: TRIB. TO MATHENY CREEK

NO DATA ENTERED, Jefferson, WA

Built 2004 Load: 46.5 t ADT: 15

310TH AVE SE

Good

Over: PATTERSON CREEK

0.8 MI N OF SR-202, King, WA

Built 2008 Load: 46.7 t ADT: 338

308TH AVE SE

Good

Over: PATTERSON CREEK

0.2 MI NO OF SR-202, King, WA

Built 2008 Load: 46.7 t ADT: 300

195TH AVE. NE

Good

Over: TRIBUTARY

1.5 MI N OF SR 202, King, WA

Built 2012 Load: 46.7 t ADT: 7,945

135TH AVE NE

Good

Over: Woodin Creek

135TH AVE NE&NE 171ST ST., King, WA

Built 2018 Load: 46.7 t ADT: 2,570

WOODBRIDGE ST NW

Good

Over: WETLANDS

0.17 SE SILVERDALE WAY NW, Kitsap, WA

Built 2017 Load: 46.7 t ADT: 387

SW LAKE FLORA ROAD

Good

Over: COUTLER CREEK

2.6 MI SE OF SR 3, Kitsap, WA

Built 2020 Load: 46.7 t ADT: 4,545

SINLAHEKIN RD

Good

Over: BLUE LAKE OUTLET

9.5 MI S. OF LOOMIS, Okanogan, WA

Built 2018 Load: 46.7 t ADT: 36

US 395

Good

Over: BNSF RR

4.6 N JCT I-90, Spokane, WA

Built 2015 Load: 46.7 t ADT: 5,500

McDONALD RD

Good

Over: BURLINGAME DITCH

0.200 N of FROG HOLLOW RD, Walla Walla, WA

Built 2009 Load: 46.7 t ADT: 370

TOUCHET GARDENA RD

Good

Over: WALLA WALLA RIVER

0.147 N of SANDPIT RD, Walla Walla, WA

Built 2012 Load: 46.7 t ADT: 990

FROST RD

Good

Over: SAAR CREEK

0.5 N SOUTH PASS ROAD, Whatcom, WA

Built 2004 Load: 46.7 t ADT: 118

NE 31ST STREET

Good

Over: MAY CREEK

0.3 MI E OF I-405, King, WA

Built 2014 Load: 47.0 t ADT: 50

Showing 7,501-7,550 of 8,808 bridges

Related

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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.