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 21

Good

Over: GRANITE CREEK

53.0 N LINCOLN CO, Ferry, WA

Built 2001 Load: 48.1 t ADT: 409

US 101

Good

Over: S FORK BOULDER CR

36.2 N JCT SR 109, Grays Harbor, WA

Built 2004 Load: 48.1 t ADT: 1,984

SR 167 SB OFF-RAMP

Good

Over: SPRINGBROOK CREEK

1.8 N JCT SR 516, King, WA

Built 1986 Load: 48.1 t ADT: 10,099

SR 516

Good

Over: WETLANDS

2.9 E JCT SR 515, King, WA

Built 1994 Load: 48.1 t ADT: 31,532

I-405 RAMP

Good

Over: SOUTHCENTER BLVD

0.9 N JCT I-5, King, WA

Built 1994 Load: 48.1 t ADT: 8,919

SR 18

Good

Over: GREEN RIVER

2.5 E JCT SR 164, King, WA

Built 1995 Load: 48.1 t ADT: 27,460

SR 18

Good

Over: CAREY CREEK

4.0 E JCT SR 169, King, WA

Built 1996 Load: 48.1 t ADT: 15,143

WB I-90

Good

Over: TIBBETTS CREEK

5.4 E JCT I-405, King, WA

Built 2004 Load: 48.1 t ADT: 39,272

EB I-90

Good

Over: TIBBETTS CREEK

5.4 E JCT I-405, King, WA

Built 2004 Load: 48.1 t ADT: 39,272

SR 3

Good

Over: GORST CREEK

6.3 N MASON CO, Kitsap, WA

Built 1988 Load: 48.1 t ADT: 11,690

NO DATA ENTERED

Good

Over: GALE CREEK

NO DATA ENTERED, Kittitas, WA

Built 1983 Load: 48.1 t ADT: 100

I-5 N-W RAMP

Good

Over: DILLENBAUGH CR

6.8 N JCT SR 508, Lewis, WA

Built 1976 Load: 48.1 t ADT: 3,301

SR 6

Good

Over: S FORK CHEHALIS R

18.0 E PACIFIC CO, Lewis, WA

Built 2009 Load: 48.1 t ADT: 3,973

LOGAN HILL ROAD

Good

Over: BERWICK CREEK

1.10 JCT 94000, Lewis, WA

Built 2007 Load: 48.1 t ADT: 1,001

US 101

Good

Over: NORTH NEMAH RIVER

6.3 N JCT SR 4, Pacific, WA

Built 1992 Load: 48.1 t ADT: 2,728

Bear Paw Rd

Good

Over: West Branch Priest River

7.4 mile w/o Idaho Hwy 57, Pend Oreille, WA

Built 2007 Load: 48.1 t ADT: 100

PARK AV S

Good

Over: CLOVER CREEK

.25 W JCT SR7, Pierce, WA

Built 1967 Load: 48.1 t ADT: 2,000

SR 20

Good

Over: COAL CREEK

3.9 E JCT SR 9, Skagit, WA

Built 1948 Load: 48.1 t ADT: 9,377

5 TH ST - INDEX

Good

Over: N.F. SKYKOMISH RIVER

1.0 NE JCT SR 2, Snohomish, WA

Built 1999 Load: 48.1 t ADT: 842

O.K. MILL RD

Good

Over: DUBUQUE CREEK

3.6 SE JCT SR92, Snohomish, WA

Built 2005 Load: 48.1 t ADT: 8,197

PLEASANT GLADE RD

Good

Over: WOODLAND CREEK

0.85 m E of SleaterKinney, Thurston, WA

Built 2003 Load: 48.1 t ADT: 420

SR 542

Good

Over: OVERFLOW CHANNEL

9.9 E JCT I-5, Whatcom, WA

Built 1999 Load: 48.1 t ADT: 11,016

BAKER LK RD

Good

Over: SULPHUR CR

2.05 N SKAGIT LINE, Whatcom, WA

Built 2010 Load: 48.1 t ADT: 916

US 101

Good

Over: MATRIOTTI CREEK

14.6 E JCT SR 117, Clallam, WA

Built 2017 Load: 48.3 t ADT: 20,910

WAHATIS PEAK ROAD

Good

Over: WAHLUKE BRANCH CANAL

NR MATTAWA, WA, Grant, WA

Built 1967 Load: 48.3 t ADT: 3

SR 104

Good

Over: QUILCENE-CHIMAKUM RD

4.2 E JCT US 101, Jefferson, WA

Built 1964 Load: 48.3 t ADT: 8,606

405 N-E RAMP

Good

Over: 116TH AVE NE

3.8 N JCT I-90, King, WA

Built 2011 Load: 48.3 t ADT: 27,000

E LAKE SAMMAMISH

Good

Over: N FORK ISSAQUAH CREEK

1.3 E JCT SR 900, King, WA

Built 2017 Load: 48.3 t ADT: 35,000

I-405

Good

Over: MAY CREEK

1.8 N JCT SR 900, King, WA

Built 2023 Load: 48.3 t ADT: 72,796

KELLY RD NE

Good

Over: HARRIS CREEK

2.5 MI E OF SR-203, King, WA

Built 2005 Load: 48.3 t ADT: 3,101

Riverview Blvd. S

Good

Over: Veterans Dr.

1.5 MI E OF I-5, King, WA

Built 2007 Load: 48.3 t ADT: 750

NO DATA ENTERED

Good

Over: BIG MEADOW CREEK

NO DATA ENTERED, Chelan, WA

Built 2023 Load: 48.6 t ADT: 80

S. Lakeshore Road

Good

Over: Slide Ridge Chute

MP 8.99 So Lakeshore Road, Chelan, WA

Built 2022 Load: 48.6 t ADT: 447

108TH AVE NE

Good

Over: YARROW CREEK

5.27 E JCT SR 513, King, WA

Built 2014 Load: 48.6 t ADT: 12,500

SE 416th ST

Good

Over: NEWAUKUM CREEK

0.6 MI E OF SR-169, King, WA

Built 2009 Load: 48.6 t ADT: 1,874

SOUTH KINGSTON RD

Good

Over: CARPENTER CREEK

0.1 S JCT W KINGSTON RD, Kitsap, WA

Built 2011 Load: 48.6 t ADT: 4,891

DOETSCH RANCH ROAD

Good

Over: BURLINGTON NORTHERN RR

BEACON ROCK STATE PARK, Skamania, WA

Built 2006 Load: 48.6 t ADT: 200

CASCADE DRIVE

Good

Over: GREENLEAF CREEK

00.1 N BPA LINES, Skamania, WA

Built 2004 Load: 48.6 t ADT: 100

FIRST STREET

Good

Over: PATIT CREEK

0.2 N JCT US 12, Columbia, WA

Built 2005 Load: 48.9 t ADT: 100

ABERNATHY CREEK RD

Good

Over: ABERNATHY CREEK

1.40 N OF SR 4 (MP 48.32), Cowlitz, WA

Built 2005 Load: 48.9 t ADT: 371

SCHMID ROAD

Good

Over: DRAINAGE CANAL

0.1 N JCT CR 1098, Grays Harbor, WA

Built 2013 Load: 48.9 t ADT: 74

72ND AVENUE SOUTH

Good

Over: Mill Creek

0.25 MI E OF SR-181, King, WA

Built 2017 Load: 48.9 t ADT: 5,000

Nelson Siding Road

Good

Over: Little Creek

2.68 SE of I-90, Kittitas, WA

Built 2012 Load: 48.9 t ADT: 800

SR 532

Good

Over: DAVIS SLOUGH

2.9 E ROUTE BEGIN, Snohomish, WA

Built 2015 Load: 48.9 t ADT: 20,742

JAMES STREET

Good

Over: SQUALICUM CREEK

1 MI. N. OF SUNSET, Whatcom, WA

Built 2015 Load: 48.9 t ADT: 11,500

CO RD 47670

Good

Over: ENTIAT RIVER

04.1W ENTIAT, Chelan, WA

Built 1921 Load: 49.0 t ADT: 59

SR 500

Good

Over: 15TH ST

0.4 E JCT I-5, Clark, WA

Built 1984 Load: 49.0 t ADT: 16,812

SR 500

Good

Over: THURSTON WAY

3.9 E JCT I-5, Clark, WA

Built 2002 Load: 49.0 t ADT: 49,037

INGLEWOOD DR

Good

Over: WESTOVER CREEK

0.03 W ALPHA DR (MP 0.34), Cowlitz, WA

Built 1997 Load: 49.0 t ADT: 1,000

US 101

Good

Over: WEST FORK HOQUIAM RIVER

7.0 N JCT SR 109, Grays Harbor, WA

Built 1990 Load: 49.0 t ADT: 2,205

Showing 7,601-7,650 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.