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

I-5

Unknown

Over: NE NORTHGATE WAY

2.0 N JCT SR 522, King, WA

Built 1964 ADT: 45,581

I-5

Unknown

Over: NE NORTHGATE WAY

2.0 N JCT SR 522, King, WA

Built 1964 ADT: 46,050

SR 18

Unknown

Over: M STREET

0.6 E JCT SR 164, King, WA

Built 1984 ADT: 18,226

I-90 EB

Unknown

Over: I-90 WB

JCT I-5, King, WA

Built 1988 ADT: 9,982

NE 51ST STREET

Unknown

Over: SR 520

3.9 E JCT I-405, King, WA

Built 1987 ADT: 61,404

NE 4TH STREET

Unknown

Over: I-405

2.4 N JCT I-90, King, WA

Built 1987 ADT: 9,639

I-90

Unknown

Over: RAINIER AVE

0.6 E JCT I-5, King, WA

Built 1988 ADT: 28,381

CITY ST - 76TH AVE

Unknown

Over: I-90

4.0 E JCT I-5, King, WA

Built 1989 ADT: 125,642

77TH AVE SE

Unknown

Over: I-90

4.2 E JCT I-5, King, WA

Built 1989 ADT: 118,092

80TH AVE

Unknown

Over: I-90

4.4 E JCT I-5, King, WA

Built 1988 ADT: 118,092

ISLAND CREST WAY

Unknown

Over: I-90

4.5 E JCT I-5, King, WA

Built 1989 ADT: 118,092

EAST MERCER WAY

Unknown

Over: I-90

5.7 E JCT I-5, King, WA

Built 1988 ADT: 123,219

NORTH MERCER WAY

Unknown

Over: I-90

5.4 E JCT I-5, King, WA

Built 1989 ADT: 123,219

NE 4TH ST

Unknown

Over: CITY STREET AND SBCD

2.4 N JCT I-90, King, WA

Built 1989 ADT: 16,919

SHOREWOOD DRIVE

Unknown

Over: I-90

5.0 E JCT I-5, King, WA

Built 1989 ADT: 123,219

I-5

Unknown

Over: METRO ACCESS

0.9 N JCT SR 523, King, WA

Built 1990 ADT: 1,144

66TH AVE S

Unknown

Over: I-405

0.8 N JCT I-5, King, WA

Built 1990 ADT: 153,756

LIND AVE (88TH AVE

Unknown

Over: I-405

1.1 N JCT SR 181, King, WA

Built 1990 ADT: 166,259

SE 180TH AVE

Unknown

Over: SR 18

0.9 E JCT SR 516, King, WA

Built 1988 ADT: 36,767

SR 202

Unknown

Over: SR 522

0.8 E JCT I-405, King, WA

Built 1989 ADT: 62,639

SOUND TRANSIT RAIL

Unknown

Over: I-5 & CITY STREETS

JCT I-90, King, WA

Built 1991 ADT: 5,488

SE 28TH ST

Unknown

Over: I-90 E-S RAMP

4.4 E JCT I-5, King, WA

Built 1992 ADT: 5,539

I-90

Unknown

Over: CITY STREETS

0.1 N JCT I-90, King, WA

Built 1991 ADT: 27,000

NE 124TH ST

Unknown

Over: RAMP/120TH AVE

5.5 N JCT SR 520, King, WA

Built 1990 ADT: 6,271

PEDESTRIAN

Unknown

Over: RAINIER AVE S

0.6 E JCT I-5, King, WA

Built 1992 ADT: 28,381

I-90

Unknown

Over: RAINIER AVE S

0.6 E JCT I-5, King, WA

Built 1992 ADT: 28,381

PEDESTRIAN

Unknown

Over: SR 90 RAMP

0.7 E JCT I-5, King, WA

Built 1992 ADT: 8,799

E-E RAMP

Unknown

Over: I-90, RAMPS, MERCER SL

6.4 E JCT I-5, King, WA

Built 1993 ADT: 68,450

S-E RAMP I-405

Unknown

Over: SR 520

JCT I-405, King, WA

Built 1993 ADT: 64,231

E-N RAMP SR 520

Unknown

Over: I-405 & SR 520

3.7 N JCT I-90, King, WA

Built 1993 ADT: 162,591

RENTON AVE S

Unknown

Over: SR 405

0.9 N JCT SR 515, King, WA

Built 1994 ADT: 169,413

CEDAR AVE S

Unknown

Over: I-405

0.8 N JCT SR 515, King, WA

Built 1993 ADT: 169,413

I-405

Unknown

Over: SR 169

10.0 N JCT SR 18, King, WA

Built 1994 ADT: 39,269

I-90 RAMP

Unknown

Over: MERCER SLOUGH, I-90

6.4 E JCT I-5, King, WA

Built 1995 ADT: 68,450

BICYCLE/PEDESTR.

Unknown

Over: I-90 RAMP EB TO RAINIER

0.6 E JCT I-5, King, WA

Built 1995 ADT: 6,034

I-5 SBCD

Unknown

Over: SR 104/205TH ST

1.2 E JCT SR 99, King, WA

Built 1995 ADT: 43,749

SR 18

Unknown

Over: BNRR, AUBURN-BLK DIAMOND

2.3 E JCT SR 164, King, WA

Built 1995 ADT: 9,224

PEDESTRIANS

Unknown

Over: SR 519

W END MARION ST, King, WA

Built 1994 ADT: 12,000

SR 520

Unknown

Over: PKWY & SAMMAMISH RIVER

4.9 E JCT I-405, King, WA

Built 1995 ADT: 38,940

SR 520

Unknown

Over: SR 202 & BIKE PATH

7.7 E JCT SR 522, King, WA

Built 1995 ADT: 35,875

ACCESS (AVONDALE)

Unknown

Over: RAMP & NE 76TH

0.1 E JCT SR 520, King, WA

Built 1996 ADT: 16,261

SR 99

Unknown

Over: DUWAMISH RIVER

0.1 N JCT SR 509, King, WA

Built 1996 ADT: 22,940

I-5 RAMP

Unknown

Over: NORTHGATE WAY

2.0 N JCT SR 522, King, WA

Built 1995 ADT: 45,581

SE 188TH ST

Unknown

Over: SR 18

4.0 E JCT SR 169, King, WA

Built 1996 ADT: 22,663

SR 18

Unknown

Over: HOLDER CR HOBART RD

4.6 E JCT SR 169, King, WA

Built 1996 ADT: 8,691

I-5 HOV LANES

Unknown

Over: I-405 NB, RAMPS

JCT I-5, King, WA

Built 1996 ADT: 36,699

E-N RAMP

Unknown

Over: SR 900

JCT I-405, King, WA

Built 1997 ADT: 25,253

304TH ST

Unknown

Over: SR 18

4.6 E JCT SR 164, King, WA

Built 1997 ADT: 54,920

SE 312TH WAY

Unknown

Over: SR 18

3.8 E JCT SR 164, King, WA

Built 1997 ADT: 54,920

COVINGTON WAY SE

Unknown

Over: SR 18

7.1 E JCT SR 164, King, WA

Built 1997 ADT: 28,822

Showing 501-550 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.