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

YESLER WAY

Unknown

Over: I-5

1.2 N JCT I-90, King, WA

Built 1965 ADT: 139,825

N-W RAMP

Unknown

Over: I-5

6.9 N JCT SR 900, King, WA

Built 1966 ADT: 139,825

I-90 W-S RAMP

Unknown

Over: I-5

6.9 N JCT SR 900, King, WA

Built 1965 ADT: 139,825

I-90

Unknown

Over: I-5

6.9 N JCT SR 900, King, WA

Built 1966 ADT: 139,825

E-N RAMP

Unknown

Over: I-5

6.9 N JCT SR 900, King, WA

Built 1965 ADT: 139,825

I-5 S-E RAMP

Unknown

Over: I-5, RAMPS, RAILROAD

7.1 N JCT SR 900, King, WA

Built 1965 ADT: 139,825

I-5

Unknown

Over: DEARBORN ST

JCT I-90, King, WA

Built 1965 ADT: 21,770

I-5

Unknown

Over: DEARBORN ST

JCT I-90, King, WA

Built 1965 ADT: 21,770

I-5 NBCD

Unknown

Over: DEARBORN ST

JCT I-90, King, WA

Built 1965 ADT: 21,770

I-5 SBCD

Unknown

Over: DEARBORN ST

JCT I-90, King, WA

Built 1965 ADT: 21,770

S-W RAMP

Unknown

Over: AIRPORT WAY S

JCT I-90, King, WA

Built 1966 ADT: 5,480

I-90 WCD RAMP

Unknown

Over: DEARBORN STREET

JCT I-90, King, WA

Built 1965 ADT: 20,500

DEARBORN-N RAMP

Unknown

Over: I-5 NBCD

JCT I-90, King, WA

Built 1965 ADT: 15,180

I-90

Unknown

Over: I-5

JCT I-5, King, WA

Built 1966 ADT: 9,982

I-405

Unknown

Over: N-W RAMP

3.6 N JCT I-90, King, WA

Built 1965 ADT: 8,168

I-405

Unknown

Over: N-W RAMP

3.6 N JCT I-90, King, WA

Built 1966 ADT: 8,168

I-405

Unknown

Over: SR 520

JCT I-405, King, WA

Built 1966 ADT: 86,292

I-405

Unknown

Over: SR 520

JCT I-405, King, WA

Built 1966 ADT: 86,292

N-W RAMP

Unknown

Over: SR 520

JCT I-405, King, WA

Built 1966 ADT: 64,231

S 144TH ST

Unknown

Over: I-5, SOUND TRANSIT RR

0.9 N JCT I-405, King, WA

Built 1965 ADT: 230,246

I-5 P1 15559 RAMP

Unknown

Over: I-5, HOV LANE

1.5 N JCT I-405, King, WA

Built 1966 ADT: 169,761

I-5

Unknown

Over: INTERURBAN AVE

0.1 N JCT SR 599, King, WA

Built 1966 ADT: 17,498

I-5

Unknown

Over: INTERURBAN AVE

0.1 N JCT SR 599, King, WA

Built 1966 ADT: 20,516

S BOEING ACCESS RD

Unknown

Over: I-5

0.5 N JCT SR 900, King, WA

Built 1966 ADT: 185,464

SR 599

Unknown

Over: I-5 (SB LANES ONLY)

1.5 N JCT I-405, King, WA

Built 1966 ADT: 84,881

SR 900

Unknown

Over: I-5

1.6 N JCT SR 599, King, WA

Built 1966 ADT: 190,540

SR 900

Unknown

Over: I-5

1.3 N JCT SR 599, King, WA

Built 1966 ADT: 188,568

NE 44TH ST

Unknown

Over: I-405

2.0 N JCT SR 900, King, WA

Built 1965 ADT: 137,350

LAKE WASHINGTON BV

Unknown

Over: I-405

3.8 N JCT SR 900, King, WA

Built 1965 ADT: 143,139

I-405

Unknown

Over: COAL CREEK PARKWAY SE

4.8 N JCT SR 900, King, WA

Built 1965 ADT: 29,232

I-405

Unknown

Over: COAL CREEK PARKWAY SE

4.8 N JCT SR 900, King, WA

Built 1965 ADT: 29,232

ALBRO ST

Unknown

Over: I-5

3.9 N JCT SR 900, King, WA

Built 1966 ADT: 190,268

BEACON-HOLGATE

Unknown

Over: I-5

6.5 N JCT SR 900, King, WA

Built 1966 ADT: 247,063

I-5

Unknown

Over: N-W RAMP

3.9 N JCT SR 900, King, WA

Built 1966 ADT: 3,978

E-N RAMP

Unknown

Over: I-5

3.9 N JCT SR 900, King, WA

Built 1966 ADT: 190,268

NB I5 OFF RAMP

Unknown

Over: W-S, I5, EB W SEA FRWY

5.6 N JCT SR 900, King, WA

Built 1967 ADT: 189,801

I-5 N - 6TH RAMP

Unknown

Over: E-6TH RAMP EB LANES

5.6 N JCT SR 900, King, WA

Built 1967 ADT: 28,260

E-N RAMP

Unknown

Over: I-5

5.6 N JCT SR 900, King, WA

Built 1966 ADT: 189,801

W-S RAMP

Unknown

Over: I-5 MAINLINE AND RAMPS

5.6 N JCT SR 900, King, WA

Built 1967 ADT: 189,801

I-5

Unknown

Over: E-S RAMP BR

5.5 N JCT SR 900, King, WA

Built 1967 ADT: 2,500

I-5

Unknown

Over: 6TH-S RAMP BR

5.5 N JCT SR 900, King, WA

Built 1967 ADT: 2,500

I-5 SB OFF RAMP

Unknown

Over: S-E RAMP TO COLUMBIA WAY

5.6 N JCT SR 900, King, WA

Built 1967 ADT: 189,801

SPOKANE ST WB LANE

Unknown

Over: I-5

5.6 N JCT SR 900, King, WA

Built 1967 ADT: 189,801

SPOKANE ST EB LANE

Unknown

Over: I-5

5.5 N JCT SR 900, King, WA

Built 1966 ADT: 189,801

I-405

Unknown

Over: SR 900 / N PARK DR

JCT I-405, King, WA

Built 1966 ADT: 25,253

I-405

Unknown

Over: SR 900 / N PARK DR

JCT I-405, King, WA

Built 1966 ADT: 25,253

SR 520

Unknown

Over: 108TH AVE NE

5.2 E JCT SR 513, King, WA

Built 1966 ADT: 15,083

S 129TH ST

Unknown

Over: I-5

0.5 N JCT SR 599, King, WA

Built 1966 ADT: 188,568

RAMP TO I-5 NB/SB

Unknown

Over: CITY STS, RAMP & RR

3.8 N JCT SR 900, King, WA

Built 1966 ADT: 13,467

N-N RAMP

Unknown

Over: SR 599 SB / SR 99 SB

1.7 N JCT I-5, King, WA

Built 1966 ADT: 20,073

Showing 351-400 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.