State profile · Below median Poor share

Washington bridge safety

Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Washington, based on the FHWA National Bridge Inventory.

8,808
Public bridges
42.4%
Good condition
4.8%
Poor condition

Data updated May 2026

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 whose lowest applicable component is rated 0-4

-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 - Poor-condition share 16.0%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Condition Distribution

Washington49.9%44.4%GoodFairPoor
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 by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Washington on the same metric.

CA

California

4.60% top marginal rate
Structure
Progressive
Burden @ $100K
$27,040

AR

Arkansas

4.71% top marginal rate
Structure
Progressive
Burden @ $100K
$5,544
Selected

WA

Washington

4.81% top marginal rate
Structure
Progressive
Burden @ $100K
$8,808

IN

Indiana

4.94% top marginal rate
Structure
Progressive
Burden @ $100K
$18,630

KS

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 the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

SILVER CK RD 00670

Poor

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

Poor

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 99

Unknown

Over: TUKWILA INT'L BLVD

1.8 N JCT I-5, King, WA

Built 1966 ADT: 21,114

S-S RAMP

Unknown

Over: S 116TH WAY

1.8 N JCT I-5, King, WA

Built 1966 ADT: 1,756

SR 99

Unknown

Over: TUKWILA INT'L BLVD

1.8 N JCT I-5, King, WA

Built 1966 ADT: 21,114

ABERDEEN AVE NE

Unknown

Over: SR 900

0.3 E JCT I-405, King, WA

Built 1967 ADT: 24,027

E MARGINAL WAY

Unknown

Over: SR 599

1.4 N JCT I-5, King, WA

Built 1967 ADT: 40,145

SR 167

Unknown

Over: SR 516

0.1 E JCT SR 181, King, WA

Built 1967 ADT: 38,206

SR 167

Unknown

Over: SR 516

0.1 E JCT SR 181, King, WA

Built 1967 ADT: 38,206

SR 167

Unknown

Over: JAMES ST

0.6 N JCT SR 516, King, WA

Built 1967 ADT: 17,200

12TH AVE S

Unknown

Over: I-90

0.2 E JCT I-5, King, WA

Built 1968 ADT: 9,982

I-90 RAMP TO I-405

Unknown

Over: I-90 MAINLINE

JCT I-405, King, WA

Built 1969 ADT: 63,576

W-N RAMP TO I-405

Unknown

Over: S-W RAMP TO I-90

0.1 E JCT I-405, King, WA

Built 1968 ADT: 12,098

I-90

Unknown

Over: W-S RAMP RICHARD RD

0.2 E JCT I-405, King, WA

Built 1969 ADT: 20,968

I-90 W-S RAMP

Unknown

Over: I-90 MAINLINE

JCT I-405, King, WA

Built 1969 ADT: 63,576

I-405

Unknown

Over: I-90 FACTORIA

JCT I-405, King, WA

Built 1969 ADT: 63,576

I-405 NB HOV

Unknown

Over: I-90 FACTORIA

JCT I-405, King, WA

Built 1969 ADT: 63,576

I-405 RAMP

Unknown

Over: EB I-90 RAMP

JCT I-405, King, WA

Built 1969 ADT: 14,083

I-5

Unknown

Over: N-W RAMP E-N RAMP

2.2 N JCT I-90, King, WA

Built 1967 ADT: 22,473

S 132ND ST PED

Unknown

Over: SR 509

1.0 N JCT SR 518, King, WA

Built 1968 ADT: 58,437

SR 509

Unknown

Over: N-N RAMP

4.0 N JCT SR 518, King, WA

Built 1968 ADT: 43,832

CLOVERDALE ST

Unknown

Over: SR 509

4.0 N JCT SR 518, King, WA

Built 1968 ADT: 43,832

195TH ST

Unknown

Over: I-405

0.8 N JCT SR 522, King, WA

Built 1968 ADT: 104,974

NP RY FACTORI

Unknown

Over: INTERSTATE ROUTE 90

7.0 E JCT I-5, King, WA

Built 1967 ADT: 84,429

I-405

Unknown

Over: SR 522 SAMMAMISH R

1.3 E JCT SR 527, King, WA

Built 1968 ADT: 24,447

I-405

Unknown

Over: SR 522 SAMMAMISH R

1.3 E JCT SR 527, King, WA

Built 1968 ADT: 24,447

I-405 N-W RAMP

Unknown

Over: SAMMAMISH R, I-405, SR 5

8.7 N JCT SR 520, King, WA

Built 1968 ADT: 110,142

SR 522

Unknown

Over: SAMMAMISH RIVER

JCT SR 522, King, WA

Built 1968 ADT: 110,142

S 277TH ST

Unknown

Over: SR 167

3.6 N JCT SR 18, King, WA

Built 1968 ADT: 112,926

I-90

Unknown

Over: SR 906 W-W RAMP

JCT I-90, King, WA

Built 1969 ADT: 1,148

160TH/BRICKYARD RD

Unknown

Over: I-405

7.8 N JCT SR 520, King, WA

Built 1969 ADT: 146,349

SR 900

Unknown

Over: I-90

6.0 E JCT I-405, King, WA

Built 1970 ADT: 78,544

S136TH ST

Unknown

Over: SR 509

0.8 N JCT SR 518, King, WA

Built 1969 ADT: 58,437

I-90

Unknown

Over: MERCER SL

6.4 E JCT I-5, King, WA

Built 1970 ADT: 9,916

I-90

Unknown

Over: MERCER SLOUGH

6.4 E JCT I-5, King, WA

Built 1940 ADT: 9,916

I-90 S-E RAMP

Unknown

Over: I-90 MERCER SLOUGH

6.4 E JCT I-5, King, WA

Built 1970 ADT: 136,899

I-90 W-N RAMP

Unknown

Over: I-90 WBCD

6.4 E JCT I-5, King, WA

Built 1969 ADT: 21,966

NE 124TH ST

Unknown

Over: I-405

5.5 N JCT SR 520, King, WA

Built 1969 ADT: 127,595

24TH AVE S

Unknown

Over: SR 518, RAMPS

1.5 E JCT SR 509, King, WA

Built 1970 ADT: 68,142

NE 72ND PLACE

Unknown

Over: I-405

2.6 N JCT SR 520, King, WA

Built 1970 ADT: 164,679

NE 80TH ST PED

Unknown

Over: I-405

3.0 N JCT SR 520, King, WA

Built 1970 ADT: 158,156

I-405 NBCD

Unknown

Over: NE 85TH ST

JCT I-405, King, WA

Built 1970 ADT: 44,198

I-405

Unknown

Over: NE 85TH ST

JCT I-405, King, WA

Built 1971 ADT: 44,198

I-405

Unknown

Over: NE 85TH ST

JCT I-405, King, WA

Built 1971 ADT: 44,198

I-405 SBCD

Unknown

Over: NE 85TH ST

JCT I-405, King, WA

Built 1971 ADT: 44,198

SO 160TH ST

Unknown

Over: SR 509

6.3 N JCT SR 516, King, WA

Built 1971 ADT: 22,507

S 156TH ST

Unknown

Over: SR 509

6.5 N JCT SR 516, King, WA

Built 1970 ADT: 35,130

SO 152ND ST

Unknown

Over: SR 509

6.8 N JCT SR 516, King, WA

Built 1971 ADT: 35,130

SO 146TH ST

Unknown

Over: SR 509

0.1 N JCT SR 518, King, WA

Built 1970 ADT: 23,969

SR 518

Unknown

Over: SR 509

7.0 N JCT SR 516, King, WA

Built 1971 ADT: 23,969

S 154TH ST

Unknown

Over: SR 518

1.9 E JCT SR 509, King, WA

Built 1971 ADT: 51,803

I-405

Unknown

Over: SE 8TH ST

1.7 N JCT I-90, King, WA

Built 1971 ADT: 19,658

Showing 401-450 of 8,808 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

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.

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.