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

NORTHLAKE WAY NW

Good

Over: CHICO CREEK

0.2 S JCT SEABECK HWY NW, Kitsap, WA

Built 1997 Load: 43.7 t ADT: 5,557

NW ERLAND POINT RD

Good

Over: CHICO CREEK

0.1 E JCT CHICO WAY NW, Kitsap, WA

Built 1997 Load: 43.7 t ADT: 5,575

SKOK. RIVER RD

Good

Over: WEAVER CREEK

0.69 W JCT SR101, Mason, WA

Built 2012 Load: 43.7 t ADT: 494

North Shore Road

Good

Over: Great Bend Creek

13.3 M JCT SR 300, Mason, WA

Built 2022 Load: 43.7 t ADT: 513

SR 7

Good

Over: MUCK CREEK

5.0 N JCT SR 702, Pierce, WA

Built 2014 Load: 43.7 t ADT: 9,722

SR 162

Good

Over: PUYALLUP RIVER

4.4 E JCT SR 410, Pierce, WA

Built 2015 Load: 43.7 t ADT: 20,315

SR 525

Good

Over: POSSESSION SOUND

1.9 N JCT SR 526, Snohomish, WA

Built 2020 Load: 43.7 t ADT: 13,078

BRENTWOOD DR

Good

Over: NOOKSACK SLOUGH

0.04 MI. W. OF GILLIES RD, Whatcom, WA

Built 2023 Load: 43.7 t ADT: 600

SR 27

Good

Over: FOUR MILE CREEK

8.7 N JCT SR 270, Whitman, WA

Built 1990 Load: 43.7 t ADT: 2,811

HEADWORKS MAINTENA

Good

Over: CRAB CREEK SIPHON NO. 1

Crab Ck Siphon No. 1 Inle, Grant, WA

Built 1947 Load: 43.8 t ADT: 10

Canal Maintenance

Good

Over: East Low Canal - Crab Ck

Crab Ck Siphon No.1 Outle, Grant, WA

Built 1947 Load: 43.8 t ADT: 5

Canal Maintenance

Good

Over: East Low Canal - Brkn Rk

Broken Rock Siphon No.1 I, Grant, WA

Built 1947 Load: 43.8 t ADT: 2

ROAD

Good

Over: BOULDER CREEK

10.3 MI N OF HWY 2, Snohomish, WA

Built 1993 Load: 43.9 t ADT: 44

PEARL HILL RD.

Good

Over: FOSTER CREEK

0.25E JCT. 17 173, Douglas, WA

Built 2016 Load: 44.1 t ADT: 352

I-90

Good

Over: W SNOQUALMIE IC

1.7 E JCT SR 18, King, WA

Built 1976 Load: 44.1 t ADT: 25,826

SR 520

Good

Over: LAKE WASHINGTON

2.9 E JCT SR 513, King, WA

Built 2016 Load: 44.1 t ADT: 28,189

I-90 EB

Good

Over: TALAPUS CR TRIBUTARY

15.7 E JCT SR 202, King, WA

Built 1972 Load: 44.1 t ADT: 18,193

35TH AVE NE

Good

Over: THORTON CREEK

0.5 MILE EAST OF SR 522, King, WA

Built 2014 Load: 44.1 t ADT: 13,900

SR 28

Good

Over: COAL CREEK

24.3 E JCT SR 21, Lincoln, WA

Built 1948 Load: 44.1 t ADT: 522

W Br LeClerc Ck Rd

Good

Over: WB LeClerc Creek

4mile n/o LeClerc Crk Rd, Pend Oreille, WA

Built 2009 Load: 44.1 t ADT: 33

SB ON RAMP

Good

Over: TERRAIN

7.7 N THURSTON CO, Pierce, WA

Built 2020 Load: 44.1 t ADT: 6,443

SR 504

Good

Over: TOUTLE RIVER

11.0 E JCT I-5, Cowlitz, WA

Built 1982 Load: 44.4 t ADT: 1,014

SR 8 WB

Good

Over: EAST FORK WILDCAT CREEK

0.3 E JCT SR 108, Grays Harbor, WA

Built 2018 Load: 44.4 t ADT: 8,278

QUINAULT S SHORE

Good

Over: MERRIMAN CREEK

6.6 E JCT SR 101, Grays Harbor, WA

Built 1985 Load: 44.4 t ADT: 240

I-90

Good

Over: S FK SNOQUALMIE RIVER

1.3 E JCT SR 202, King, WA

Built 1975 Load: 44.4 t ADT: 23,108

I-90

Good

Over: S FK SNOQUALMIE RIVER

1.3 E JCT SR 202, King, WA

Built 1975 Load: 44.4 t ADT: 23,108

I-90 WESTBOUND

Good

Over: Sound Transit Railroad

0.3 E JCT I-5, King, WA

Built 1988 Load: 44.4 t ADT: 52,043

SE 256TH ST

Good

Over: JENKINS CREEK

0.2 N SR 18, King, WA

Built 2002 Load: 44.4 t ADT: 10,000

CW NEAL ROAD

Good

Over: DRAINAGE DITCH

0.3 MI W OF SR-203, King, WA

Built 2007 Load: 44.4 t ADT: 150

NB I-5 RAMP

Good

Over: DILLENBAUGH CREEK

3.8 N JCT SR 508, Lewis, WA

Built 2009 Load: 44.4 t ADT: 2,590

ANDERSON ROAD

Good

Over: CURTIS CREEK

3.8 SW WINLOCK, Lewis, WA

Built 2009 Load: 44.4 t ADT: 36

SR 106

Good

Over: SKOBOB CREEK

0.8 E JCT US 101, Mason, WA

Built 2005 Load: 44.4 t ADT: 1,584

SR 20

Good

Over: TWISP R

38.8 E CHELAN CO, Okanogan, WA

Built 2000 Load: 44.4 t ADT: 4,423

SR 16

Good

Over: 6TH AVE

3.5 N JCT I-5, Pierce, WA

Built 1983 Load: 44.4 t ADT: 36,070

SR 16

Good

Over: S TACOMA WAY/STRR/CENTER

0.1 N JCT I-5, Pierce, WA

Built 2011 Load: 44.4 t ADT: 44,341

SR 410

Good

Over: SILVER CREEK

13.4 E KING CO, Pierce, WA

Built 1996 Load: 44.4 t ADT: 1,427

SR 20

Good

Over: MEADOW CREEK

2.8 E ISLAND CO, Skagit, WA

Built 2008 Load: 44.4 t ADT: 15,819

US 2

Good

Over: EBEY ISLAND

0.8 E JCT I-5, Snohomish, WA

Built 1999 Load: 44.4 t ADT: 39,701

SULTAN BASIN RD

Good

Over: OLNEY CREEK

11.1 NE JCT SR 2, Snohomish, WA

Built 1991 Load: 44.4 t ADT: 77

US 395 N-E RAMP

Good

Over: FARWELL RD

8.9 N JCT I-90, Spokane, WA

Built 2004 Load: 44.4 t ADT: 2,540

SR 395

Good

Over: BNSF RR

4.6 N JCT I-90, Spokane, WA

Built 2015 Load: 44.4 t ADT: 5,500

MARTIN WAY E

Good

Over: SLOUGH

.19 m SW of Nisqually Cut, Thurston, WA

Built 2000 Load: 44.4 t ADT: 17,895

SR 124

Good

Over: UPRR

5.3 E JCT US 12, Walla Walla, WA

Built 2017 Load: 44.4 t ADT: 3,240

RESER RD

Good

Over: YELLOWHAWK CREEK

0.19 E of HOWARD ST, Walla Walla, WA

Built 2011 Load: 44.4 t ADT: 3,610

SR 542

Good

Over: SMITH CREEK

1.3 E JCT SR 9, Whatcom, WA

Built 1948 Load: 44.4 t ADT: 9,002

SB SR 539

Good

Over: NOOKSACK R OVERFLOW

1.7 N JCT SR 544, Whatcom, WA

Built 2009 Load: 44.4 t ADT: 8,300

CLEARBROOK RD

Good

Over: JOHNSON CREEK

00.4 W NOOKSACK RD., Whatcom, WA

Built 2010 Load: 44.4 t ADT: 240

US 12

Good

Over: TIETON RIVER

26.0 E LEWIS CO, Yakima, WA

Built 2010 Load: 44.4 t ADT: 2,265

SR 241

Good

Over: DRY CREEK

15.5 N JCT I-82, Yakima, WA

Built 2010 Load: 44.4 t ADT: 1,511

ROAD

Good

Over: TOUCHET RIVER

NO DATA ENTERED, Columbia, WA

Built 2005 Load: 44.5 t ADT: 60

Showing 7,351-7,400 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.