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 302

Good

Over: MINTER CREEK

6.3 E MASON CO, Pierce, WA

Built 2020 Load: 45.4 t ADT: 15,920

ORVILLE RD E

Good

Over: KAPOWSIN CREEK

5.0 E Jct SR 161, Pierce, WA

Built 2006 Load: 45.4 t ADT: 2,025

D Street

Good

Over: Railroad

East D St., Pierce, WA

Built 2008 Load: 45.4 t ADT: 4,000

SR 20

Good

Over: DEBRIS CHANNEL

24.5 E JCT SR 9, Skagit, WA

Built 2000 Load: 45.4 t ADT: 2,925

I-405

Good

Over: 228TH ST

1.3 N KING CO, Snohomish, WA

Built 1968 Load: 45.4 t ADT: 45,734

SR 530

Good

Over: DEER CREEK

11.6 E JCT SR 9, Snohomish, WA

Built 1972 Load: 45.4 t ADT: 4,505

RD. NO. 23

Good

Over: STUJACK CREEK

M.P. 3.5 RD. NO. 23, Snohomish, WA

Built 2011 Load: 45.4 t ADT: 50

AIRPORT WAY

Good

Over: SNOHOMISH R.

1.1 N JCT SR#9, Snohomish, WA

Built 1983 Load: 45.4 t ADT: 16,383

SULTAN BASIN RD

Good

Over: OLNEY CREEK

7.2 NE JCT SR 2, Snohomish, WA

Built 1990 Load: 45.4 t ADT: 174

O.K. MILL RD

Good

Over: PILCHUCK RIVER

3.5 S JCT SR92, Snohomish, WA

Built 2005 Load: 45.4 t ADT: 8,197

Index-Galena Road

Good

Over: Howard Creek

9.0 NE JCT SR2, Snohomish, WA

Built 2017 Load: 45.4 t ADT: 31

SR 291

Good

Over: LITTLE SPOKANE R

10.0 N JCT US 2, Spokane, WA

Built 1966 Load: 45.4 t ADT: 8,085

BARKER RD

Good

Over: RR

.4 N GARLAND AVE, Spokane, WA

Built 2022 Load: 45.4 t ADT: 8,422

SB I-5

Good

Over: PRAIRIE CREEK

2.4 N LEWIS CO, Thurston, WA

Built 2010 Load: 45.4 t ADT: 34,801

MCLANE DELPHI ROAD

Good

Over: MCLANE CREEK

50 yd S of Mckenz Rd intr, Thurston, WA

Built 1992 Load: 45.4 t ADT: 2,686

US 12

Good

Over: UP RR

0.8 E JCT SR 125 SPUR, Walla Walla, WA

Built 1972 Load: 45.4 t ADT: 13,009

WOODWARD CANYON RD

Good

Over: US 12

15.2 E JCT US 730 SPUR, Walla Walla, WA

Built 2023 Load: 45.4 t ADT: 100

LOWER DRY CREEK RD

Good

Over: US 12

16.6 E JCT US 730 SPUR, Walla Walla, WA

Built 2023 Load: 45.4 t ADT: 100

SR 542

Good

Over: GALLUP CREEK

10.5 E JCT SR 547, Whatcom, WA

Built 2010 Load: 45.4 t ADT: 1,869

ROAD # 3160

Good

Over: CANYON CREEK

RD 3160 MP 0.50, Whatcom, WA

Built 1985 Load: 45.4 t ADT: 10

STEIN RD

Good

Over: DAKOTA CREEK

00.1 S. LOOMIS TRAIL ROAD, Whatcom, WA

Built 2000 Load: 45.4 t ADT: 720

KOK ROAD

Good

Over: FISH TRAP CREEK

00.2 E GUIDE MERIDIAN, Whatcom, WA

Built 2012 Load: 45.4 t ADT: 6,791

NOON RD

Good

Over: TEN MILE CREEK

01.1 N E. SMITH ROAD, Whatcom, WA

Built 2012 Load: 45.4 t ADT: 645

HOLE IN GRND/3300

Good

Over: PINE CREEK

1.05 MI SE BELSBY, Whitman, WA

Built 2008 Load: 45.4 t ADT: 25

OLD SR 26 RD

Good

Over: PALOUSE RIVER OVERRUN

00.03 MI SW GRAY RD, Adams, WA

Built 1944 Load: 45.7 t ADT: 96

NICHOLS ROAD

Good

Over: BIG RIVER

0.07 N JCT CR91460, Clallam, WA

Built 2011 Load: 45.7 t ADT: 30

Tucannon Road

Good

Over: Un-named creek

M.P. 14.75 Rd No. 92330, Columbia, WA

Built 2017 Load: 45.7 t ADT: 200

S 116TH ST

Good

Over: DRAINAGE DITCH-RELIEF

0.3 MI W OF SR-99, King, WA

Built 2020 Load: 45.7 t ADT: 6,500

I-5 RAMP

Good

Over: CMSTPP RR

0.2 N JCT I-5, Pierce, WA

Built 1964 Load: 45.7 t ADT: 17,238

160TH ST NW

Good

Over: HUGE CREEK

0.5 W JCT 118 AVE, Pierce, WA

Built 2021 Load: 45.7 t ADT: 1,650

ELEANOR LANE

Good

Over: MADDOX CREEK

0.1 E JCT OLD HIGHWAY 99, Skagit, WA

Built 2006 Load: 45.7 t ADT: 460

US 12

Good

Over: DRY CREEK

16.1 E JCT US 730 SPUR, Walla Walla, WA

Built 2023 Load: 45.7 t ADT: 4,006

US 12

Good

Over: DRY CREEK

16.1 E JCT US 730 SPUR, Walla Walla, WA

Built 2023 Load: 45.7 t ADT: 4,006

WICKERSHAM RD

Good

Over: SAMISH RIVER

00.4 E of Valley HWY, Whatcom, WA

Built 1998 Load: 45.7 t ADT: 159

YAKIMA VALLEY HWY

Good

Over: S.V.I.D. CANAL

00.06 SE PARKER HTS, Yakima, WA

Built 1953 Load: 45.7 t ADT: 2,260

Country Club Drive

Good

Over: Roza Canal

.06 S of Terrace Hts Dr, Yakima, WA

Built 2006 Load: 45.7 t ADT: 870

Cowiche Mill Road

Good

Over: Cowiche Creek

4.53 W Sunset Way, Yakima, WA

Built 2022 Load: 45.7 t ADT: 186

ROAD

Good

Over: BECKLER RIVER

1.0 MI N O HYW 2/65 JCT, Snohomish, WA

Built 1988 Load: 45.8 t ADT: 114

NE 199TH STREET

Good

Over: WOODIN CREEK

0.56 M. E OF SR 503, Clark, WA

Built 2003 Load: 46.0 t ADT: 10,556

VANCE CR LOOP

Good

Over: FIR CREEK

NFSR 23 TO NFSR 2230, Mason, WA

Built 2010 Load: 46.0 t ADT: 10

OCR 3683

Good

Over: NESPELEM RIVER

5.13 NO. JCT. SR 155, Okanogan, WA

Built 2017 Load: 46.0 t ADT: 51

SR 6

Good

Over: WILLAPA RIVER

9.4 E JCT US 101, Pacific, WA

Built 1953 Load: 46.0 t ADT: 1,780

N HARBORVIEW DR

Good

Over: DONKEY CREEK

0.05 NE JCT HARBORVIEW DR, Pierce, WA

Built 2013 Load: 46.0 t ADT: 5,341

RIVERSIDE DRIVE

Good

Over: SKAGIT RIVER

0.7 N JCT SR 538, Skagit, WA

Built 2004 Load: 46.0 t ADT: 21,640

W. White Swan Road

Good

Over: Simco Creek

0.29 E of Hawk Rd., Yakima, WA

Built 2022 Load: 46.0 t ADT: 530

SR 240

Good

Over: OLD SR 12/COLUMBIA PK TR

1.7 E JCT I-182, Benton, WA

Built 2006 Load: 46.3 t ADT: 48,296

ROAD

Good

Over: TOUCHET RIVER

NO DATA ENTERED, Columbia, WA

Built 2005 Load: 46.3 t ADT: 60

8817: LONE RANCH N

Good

Over: Lone Ranch Creek

0.4 miles east of Hwy 21, Ferry, WA

Built 2018 Load: 46.3 t ADT: 2

COUNTY ROAD

Good

Over: POTHOLES EAST CANAL

0.77W SAGEMOOR 908, Franklin, WA

Built 1953 Load: 46.3 t ADT: 313

SR 170

Good

Over: EAST LOW CANAL

2.4 E JCT SR 17, Grant, WA

Built 1980 Load: 46.3 t ADT: 2,802

Showing 7,451-7,500 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.