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 112

Good

Over: OLSEN CREEK

7.3 E MAKAH RES, Clallam, WA

Built 2018 Load: 52.5 t ADT: 865

ENDICOTT/4000

Good

Over: ROCK CREEK

1.89 MI E ADAMS CNTY LINE, Whitman, WA

Built 2000 Load: 52.5 t ADT: 554

NE 15TH AVENUE

Good

Over: BURNT BRIDGE CREEK

500 FT N OF SR 500, Clark, WA

Built 1984 Load: 52.6 t ADT: 2,958

DUNLAP ROAD

Good

Over: SLOUGH

00.9 S JCT SR12, Grays Harbor, WA

Built 1985 Load: 52.6 t ADT: 30

SR 516

Good

Over: MULLEN SLOUGH & DIRT RD.

1.8 E JCT I-5, King, WA

Built 1983 Load: 52.6 t ADT: 23,306

SR 516

Good

Over: BIG SOOS CREEK

3.7 E JCT SR 515, King, WA

Built 1994 Load: 52.6 t ADT: 28,754

SR 18

Good

Over: JENKINS CREEK

2.1 E JCT SR 516, King, WA

Built 2002 Load: 52.6 t ADT: 19,491

SR 18

Good

Over: SE 240TH ST

3.5 E JCT SR 516, King, WA

Built 2002 Load: 52.6 t ADT: 19,491

I-405

Good

Over: SPRINGBROOK/OAKESDALE

0.6 N JCT SR 181, King, WA

Built 2009 Load: 52.6 t ADT: 166,259

S-W RAMP

Good

Over: CAMPUS WAY NE

0.6 W JCT I-405, King, WA

Built 2008 Load: 52.6 t ADT: 8,549

I-705 RAMP

Good

Over: FLAT TERRAIN

1.2 N JCT I-5, Pierce, WA

Built 1987 Load: 52.6 t ADT: 6,123

ALDER CUTOFF RD E

Good

Over: TACOMA RAIL MNT. DIV.

3.3 E JCT SR 161, Pierce, WA

Built 1946 Load: 52.6 t ADT: 2,725

CONRAD ROAD

Good

Over: SUTTER CREEK

0.59 E JCT SR20, Skagit, WA

Built 2011 Load: 52.6 t ADT: 23

US 2

Good

Over: 87TH AVE SE

1.9 E JCT SR 204, Snohomish, WA

Built 1982 Load: 52.6 t ADT: 26,056

SR 290

Good

Over: SPOKANE RIVER

0.2 E JCT SR 27, Spokane, WA

Built 1987 Load: 52.6 t ADT: 10,736

JAMES ROAD

Good

Over: OVERFLOW CHANNEL

1. S JCT SR12, Thurston, WA

Built 1985 Load: 52.6 t ADT: 1,265

JAMES ROAD SW

Good

Over: SCATTER CREEK

0.46 m W of Denmark Rd, Thurston, WA

Built 1982 Load: 52.6 t ADT: 1,265

143RD AVE S W

Good

Over: SCATTER CREEK

0.25 m N jct. SR 507, Thurston, WA

Built 1987 Load: 52.6 t ADT: 1,256

123RD. S.W.

Good

Over: BLACK RIVER

0.37m W of Littlerock Rd, Thurston, WA

Built 1986 Load: 52.6 t ADT: 229

Mullen Road

Good

Over: CREEK

.7 mi. W of Marvin Rd, Thurston, WA

Built 1999 Load: 52.6 t ADT: 7,703

BRUCE RD

Good

Over: CALIFORNIA CR

00.2 N. BAY RD., Whatcom, WA

Built 1923 Load: 52.6 t ADT: 643

SR 270

Good

Over: BN & UPRR, SE Spring Str

0.3 E SR 270 COPULLMN, Whitman, WA

Built 1996 Load: 52.6 t ADT: 11,051

SR 27

Good

Over: PINE CREEK

4.1 N JCT SR 271, Whitman, WA

Built 2010 Load: 52.6 t ADT: 387

ROAD

Good

Over: THORP CREEK

NO DATA ENTERED, Kittitas, WA

Built 1979 Load: 52.7 t ADT: 10

WASHOUGAL RIVER RD

Good

Over: WASHOUGAL RIVER

.3 E JCT SR14, Clark, WA

Built 1993 Load: 52.8 t ADT: 6,484

SPRUCE CREEK RD

Good

Over: MILL CREEK

0.01 W MILL CRK RD (1.00), Cowlitz, WA

Built 2004 Load: 52.8 t ADT: 350

Adams Rd

Good

Over: Lateral block 73

Adams at 11.5 NW, Grant, WA

Built 2017 Load: 52.8 t ADT: 589

US 12

Good

Over: SATSOP R OVERFLOW

4.8 E JCT SR 107, Grays Harbor, WA

Built 1965 Load: 52.8 t ADT: 11,538

15TH AVE NE

Good

Over: THORNTON CR, RAVINE

10411 15th Ave NE, King, WA

Built 1949 Load: 52.8 t ADT: 9,189

I-90

Good

Over: RESORT CREEK

4.8 E JCT SR 906, Kittitas, WA

Built 2012 Load: 52.8 t ADT: 17,475

I-90

Good

Over: RESORT CREEK

4.8 E JCT SR 906, Kittitas, WA

Built 2015 Load: 52.8 t ADT: 17,475

BIGELOW GULCH ROAD

Good

Over: FORKER ROAD

3.2 MI E OF ARGONNE RD, Spokane, WA

Built 2018 Load: 52.8 t ADT: 7,019

North Road

Good

Over: Chumstick Creek

North Road, Chelan, WA

Built 2009 Load: 53.1 t ADT: 1,168

BIA Route 1102

Good

Over: WA-ATCH RIVER

3 KM SW OF NEAH BAY, Clallam, WA

Built 2010 Load: 53.1 t ADT: 300

SOUTH BANK ROAD

Good

Over: GADDIS CREEK

0.53 S JCT 96540, Grays Harbor, WA

Built 2017 Load: 53.1 t ADT: 832

MANASTASH ROAD

Good

Over: NORTH FORK CREEK

4.74 WEST COVE ROAD, Kittitas, WA

Built 2016 Load: 53.1 t ADT: 270

GAFFNEY ROAD 3606

Good

Over: DRAINAGE

1.52 N JCT SR 23, Lincoln, WA

Built 1930 Load: 53.1 t ADT: 65

CASCADE RIVER RD

Good

Over: HARD CREEK

12.7 E JCT SR 20, Skagit, WA

Built 1997 Load: 53.1 t ADT: 84

DELEZENNE ROAD

Good

Over: DELEZENNE CREEK

03.7 S JCT 96412, Grays Harbor, WA

Built 1993 Load: 53.5 t ADT: 24

US 101

Good

Over: SALMON CREEK

7.8 S CLALLAM CO, Jefferson, WA

Built 1986 Load: 53.5 t ADT: 13,287

UPPER HOH ROAD

Good

Over: UNNAMED CREEK

6.95 E JCT SR 101, Jefferson, WA

Built 2016 Load: 53.5 t ADT: 877

SR 167 OFF RAMP NB

Good

Over: SPRINGBROOK CREEK

1.8 N JCT SR 516, King, WA

Built 1986 Load: 53.5 t ADT: 8,606

W-N I-90 RAMP

Good

Over: PEDESTRIAN-BIKE PATH

0.6 E JCT I-5, King, WA

Built 1988 Load: 53.5 t ADT: 7,337

I-90 EB

Good

Over: TALAPUS CREEK

15.6 E JCT SR 202, King, WA

Built 1972 Load: 53.5 t ADT: 18,193

I-90

Good

Over: BIG CR

20.6 E JCT SR 906, Kittitas, WA

Built 1962 Load: 53.5 t ADT: 16,139

SR 506

Good

Over: OLEQUA CREEK

4.9 E COWLITZ CO, Lewis, WA

Built 1981 Load: 53.5 t ADT: 1,590

SR 20

Good

Over: BACON CREEK

13.3 E JCT SR 530, Skagit, WA

Built 1972 Load: 53.5 t ADT: 1,971

SR 9

Good

Over: HARVEY CK RD / HARVEY CK

1.4 N JCT SR 530, Snohomish, WA

Built 2008 Load: 53.5 t ADT: 7,017

SNOHOMISH-MONRO RD

Good

Over: FRENCH CREEK

1.8 S JCT SR2, Snohomish, WA

Built 2000 Load: 53.5 t ADT: 4,129

WADDELL CREEK RD.

Good

Over: STONEY CREEK

00.3W DELPHI Rd, Thurston, WA

Built 1976 Load: 53.5 t ADT: 1,531

Showing 7,801-7,850 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.