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

WEYERHAEUSER WAY S

Unknown

Over: SR 18

0.7 E JCT I-5, King, WA

Built 1970 ADT: 55,921

W MAIN ST

Unknown

Over: SR 167

0.1 N JCT SR 18, King, WA

Built 1972 ADT: 43,163

15TH ST NW

Unknown

Over: SR 167

1.5 N JCT SR 18, King, WA

Built 1972 ADT: 114,151

37TH ST NW

Unknown

Over: SR 167

2.7 N JCT SR 18, King, WA

Built 1971 ADT: 129,748

SR 518

Unknown

Over: N-W RAMP, SR 518

1.9 E JCT SR 509, King, WA

Built 1971 ADT: 51,803

I-90

Unknown

Over: 468TH AVE SE

4.4 E JCT SR 202, King, WA

Built 1971 ADT: 5,568

I-90

Unknown

Over: 468TH AVE SE

4.4 E JCT SR 202, King, WA

Built 1971 ADT: 5,568

SR 520

Unknown

Over: 124 AVE NE - NW RAMP

0.6 E JCT I-405, King, WA

Built 1971 ADT: 13,000

SR 520

Unknown

Over: 124 AVE NE - NW RAMP

0.6 E JCT I-405, King, WA

Built 1971 ADT: 13,000

HANSEN CR RD

Unknown

Over: I-90

17.1 E JCT SR 202, King, WA

Built 1971 ADT: 35,874

I-90

Unknown

Over: W LAKE SAMMAMISH PKWY

3.7 E JCT I-405, King, WA

Built 1972 ADT: 15,961

I-90

Unknown

Over: W LAKE SAMMAMISH PKWY

3.7 E JCT I-405, King, WA

Built 1972 ADT: 15,961

I-90 RAMP

Unknown

Over: W LAKE SAMMAMISH PKWY

3.7 E JCT I-405, King, WA

Built 1972 ADT: 15,759

150TH AVE SE

Unknown

Over: I-90

1.7 E JCT I-405, King, WA

Built 1973 ADT: 127,706

150TH AVE SE

Unknown

Over: I-90

1.7 E JCT I-405, King, WA

Built 1973 ADT: 127,706

TINKHAM RD

Unknown

Over: I-90

11.7 E JCT SR 202, King, WA

Built 1973 ADT: 36,310

15TH ST SW

Unknown

Over: SR 167

2.3 N PIERCE CO, King, WA

Built 1975 ADT: 90,546

SR 167 NB

Unknown

Over: SR 18

2.3 E JCT I-5, King, WA

Built 1973 ADT: 57,729

SR 167

Unknown

Over: SR 18

2.3 E JCT I-5, King, WA

Built 1973 ADT: 57,729

NB RAMP

Unknown

Over: N-E RAMP

2.7 N PIERCE CO, King, WA

Built 1975 ADT: 10,288

SR 167 RAMP

Unknown

Over: SR 18

2.3 E JCT I-5, King, WA

Built 1974 ADT: 57,729

RAMP

Unknown

Over: I-90, RAMPS, CITY STREET

1.7 E JCT I-405, King, WA

Built 1973 ADT: 127,706

148TH ST-W RAMP

Unknown

Over: I-90 WBCD RAMP

1.7 E JCT I-405, King, WA

Built 1973 ADT: 2,858

I-405

Unknown

Over: SE 8TH ST OC

1.7 N JCT I-90, King, WA

Built 1972 ADT: 19,658

SE 231ST ST

Unknown

Over: SR 18

4.3 E JCT SR 516, King, WA

Built 1972 ADT: 26,396

S EASTGATE PEDESTR

Unknown

Over: I-90 RAMPS

1.7 N JCT I-405, King, WA

Built 1973 ADT: 7,357

N EASTGATE PEDESTR

Unknown

Over: EASTGATE WAY & W-S RAMP

1.7 E JCT I-405, King, WA

Built 1973 ADT: 2,858

PEDESTRIAN

Unknown

Over: I-90

3.3 E JCT I-405, King, WA

Built 1973 ADT: 113,791

I-90

Unknown

Over: HOMESTEAD VALLEY RD

7.5 E JCT SR 202, King, WA

Built 1974 ADT: 213

I-90

Unknown

Over: HOMESTEAD VALLEY RD

7.5 E JCT SR 202, King, WA

Built 1974 ADT: 213

I-90

Unknown

Over: SR 18

12.1 E JCT SR 169, King, WA

Built 1975 ADT: 21,327

I-90

Unknown

Over: HIGH POINT RD

4.4 E JCT SR 900, King, WA

Built 1975 ADT: 931

436TH AVE SE

Unknown

Over: I-90

2.3 E JCT SR 202, King, WA

Built 1976 ADT: 37,344

SE 82ND ST

Unknown

Over: I-90

6.7 E JCT SR 900, King, WA

Built 1975 ADT: 55,271

W-S RAMP I-90

Unknown

Over: I-90

2.2 E JCT SR 900, King, WA

Built 1976 ADT: 59,685

142ND PL SE

Unknown

Over: I-90, RAMPS, CITY STREET

1.2 E JCT I-405, King, WA

Built 1976 ADT: 127,706

I-90

Unknown

Over: SR 202

8.8 E JCT SR 203, King, WA

Built 1976 ADT: 10,067

I-90

Unknown

Over: SR 202

8.8 E JCT SR 203, King, WA

Built 1975 ADT: 10,067

SR 520

Unknown

Over: WLS PKWY & SAMMAMISH R

4.9 E JCT I-405, King, WA

Built 1976 ADT: 38,940

PEDESTRIAN TRAFFIC

Unknown

Over: I-405

2.0 N JCT SR 520, King, WA

Built 1978 ADT: 175,928

CLOSED S 176TH ST

Unknown

Over: SR 509

5.2 N JCT SR 516, King, WA

Built 1979 ADT: 28,216

SR 509

Unknown

Over: DES MOINES MEMORIAL

5.8 N JCT SR 516, King, WA

Built 1979 ADT: 5,467

NE 40TH ST

Unknown

Over: SR 520

3.2 E JCT I-405, King, WA

Built 1980 ADT: 61,404

EQUESTRIAN TRAFFIC

Unknown

Over: SR 520

4.3 E JCT I-405, King, WA

Built 1980 ADT: 61,404

SR 509

Unknown

Over: SR 509/DES MOINES MEM

4.7 N JCT SR 516, King, WA

Built 1979 ADT: 9,478

SR 18

Unknown

Over: SR 516

4.1 E JCT SR 515, King, WA

Built 1979 ADT: 26,572

FLYER STOP PED TRF

Unknown

Over: SB 405 OFF RAMP TO 72ND

2.6 N JCT SR 520, King, WA

Built 1980 ADT: 5,919

148TH AVE

Unknown

Over: SR 520

2.3 E JCT I-405, King, WA

Built 1981 ADT: 86,292

NE 30TH ST

Unknown

Over: SR 405

1.1 N JCT SR 900, King, WA

Built 1981 ADT: 136,172

TALBOT HILL PED.

Unknown

Over: SR 515

6.2 N JCT SR 516, King, WA

Built 1983 ADT: 23,820

Showing 451-500 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.