How many bridges are in Washington?

Washington has 8,808 public highway bridges tracked in the FHWA National Bridge Inventory. View detailed condition data for each bridge on PlainBridges.

What percentage of bridges in Washington are in Poor condition?

4.8% of bridge records in Washington are in Poor condition, meaning the lowest applicable major-component rating is 4 or below, compared with 7.0% across state inventories.

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.

Compiled by PlainBridges, Independent data publisher

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

Bridge inventory deck-condition mix - Washington (FHWA NBI)

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.

California

4.60% top marginal rate

Structure: Progressive
Burden @ $100K: $27,040

Arkansas

4.71% top marginal rate

Structure: Progressive
Burden @ $100K: $5,544

Selected

Washington

4.81% top marginal rate

Structure: Progressive
Burden @ $100K: $8,808

Indiana

4.94% top marginal rate

Structure: Progressive
Burden @ $100K: $18,630

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

Sort by:

I-90

Unknown

Over: SR 18

12.2 E JCT SR 169, King, WA

Built 1963 ADT: 21,327

61ST AVE S

Unknown

Over: I-405

0.3 N JCT I-5, King, WA

Built 1962 ADT: 108,408

SR 99

Unknown

Over: SR 518 RIVERTON HTS

1.9 E JCT SR 509, King, WA

Built 1962 ADT: 51,803

I-5

Unknown

Over: SR 104 / NE 205TH ST

1.3 E JCT SR 99, King, WA

Built 1963 ADT: 43,749

I-5

Unknown

Over: SR 104 / NE 205TH ST

1.3 E JCT SR 99, King, WA

Built 1963 ADT: 43,749

I-5 NBCD

Unknown

Over: SR 104

1.3 E JCT SR 99, King, WA

Built 1963 ADT: 43,749

MILITARY RD

Unknown

Over: I-5

2.0 N JCT SR 516, King, WA

Built 1963 ADT: 209,875

S 208TH ST

Unknown

Over: SR 167 & SPRINGBROOK CR

3.0 N JCT SR 516, King, WA

Built 1963 ADT: 109,316

S 180TH ST

Unknown

Over: SR 167

4.8 N JCT SR 516, King, WA

Built 1964 ADT: 106,515

S 216TH ST

Unknown

Over: I-5

1.1 N JCT SR 516, King, WA

Built 1963 ADT: 209,875

I-5

Unknown

Over: ORILLIA RD/S 188TH ST

3.1 N JCT SR 516, King, WA

Built 1963 ADT: 29,582

I-5

Unknown

Over: ORILLIA RD/S 188TH ST

3.1 N JCT SR 516, King, WA

Built 1963 ADT: 29,582

I-5 NB

Unknown

Over: JAMES, CHERRY, REVERS

0.8 N JCT I-90, King, WA

Built 1964 ADT: 18,166

MADISON ST

Unknown

Over: I-5

1.2 N JCT I-90, King, WA

Built 1964 ADT: 117,150

SPRING ST

Unknown

Over: I-5

1.2 N JCT I-90, King, WA

Built 1964 ADT: 117,150

SENECA ST

Unknown

Over: I-5

1.2 N JCT I-90, King, WA

Built 1964 ADT: 172,787

N-SENECA RAMP

Unknown

Over: I-5 SB & CITY STREETS

1.2 N JCT I-90, King, WA

Built 1964 ADT: 86,394

SPRING ST RAMP

Unknown

Over: I-5 SB COL

1.2 N JCT I-90, King, WA

Built 1964 ADT: 14,608

5TH AVE NE

Unknown

Over: I-5, I-5 EXPRESS LANES

2.2 N JCT SR 520, King, WA

Built 1964 ADT: 165,473

NE 80TH ST

Unknown

Over: I-5, I-5 EXP LNS, RAMPS

0.5 N JCT SR 522, King, WA

Built 1964 ADT: 149,488

NE 92ND ST

Unknown

Over: I-5

0.5 N JCT SR 522, King, WA

Built 1964 ADT: 170,579

N-85TH RAMP

Unknown

Over: I-5

0.5 N JCT SR 522, King, WA

Built 1964 ADT: 149,488

N 85TH TO SB I-5

Unknown

Over: I-5 SB RAMP TO NE 80TH

0.5 N JCT SR 522, King, WA

Built 1964 ADT: 8,502

I-5

Unknown

Over: N-103RD EXP RAMP

5.5 N JCT I-90, King, WA

Built 1964 ADT: 3,206

I-5

Unknown

Over: SBCD NE110TH ST

2.0 N JCT SR 522, King, WA

Built 1964 ADT: 46,050

NP RY

Unknown

Over: STATE ROUTE 202

0.3 E JCT SR 522, King, WA

Built 1963 ADT: 39,506

I-405

Unknown

Over: SR 181

6.1 N JCT SR 516, King, WA

Built 1964 ADT: 32,968

NE117TH ST

Unknown

Over: I-5

2.4 N JCT SR 522, King, WA

Built 1964 ADT: 204,832

NE 130TH ST

Unknown

Over: I-5

3.1 N JCT SR 522, King, WA

Built 1964 ADT: 190,254

SR 523 / NE 145TH

Unknown

Over: I-5

3.8 N JCT SR 522, King, WA

Built 1964 ADT: 166,801

I-5

Unknown

Over: NE 175TH ST

1.6 N JCT SR 523, King, WA

Built 1964 ADT: 166,442

I-5

Unknown

Over: NE 175TH ST

1.6 N JCT SR 523, King, WA

Built 1964 ADT: 166,442

NE 185TH ST

Unknown

Over: I-5

2.6 N JCT SR 523, King, WA

Built 1964 ADT: 180,670

NE 195TH ST PED

Unknown

Over: I-5, RAMPS

2.6 N JCT SR 523, King, WA

Built 1964 ADT: 155,748

I-405

Unknown

Over: SR 167

6.7 N JCT SR 516, King, WA

Built 1964 ADT: 91,692

I-405

Unknown

Over: SR 515

6.9 N JCT SR 516, King, WA

Built 1964 ADT: 46,318

S178TH ST

Unknown

Over: I-5

4.0 N JCT SR 516, King, WA

Built 1964 ADT: 224,903

KLICKITAT DR

Unknown

Over: I-5

5.0 N JCT SR 516, King, WA

Built 1964 ADT: 112,452

I-5

Unknown

Over: I-405 NB / SR 518 EB

0.1 N JCT I-5, King, WA

Built 1966 ADT: 36,699

I-5

Unknown

Over: I-405 NB / SR 518 EB

JCT I-5, King, WA

Built 1966 ADT: 36,699

I-5

Unknown

Over: E-N RAMP

1.1 E JCT SR 99, King, WA

Built 1965 ADT: 14,537

N-W RAMP

Unknown

Over: I-405, E-N, S-N RAMPS

0.1 N JCT I-5, King, WA

Built 1966 ADT: 54,204

RAMP I-5 TO I-405

Unknown

Over: RAMP SR 518 TO I-5

1.1 E JCT SR 99, King, WA

Built 1966 ADT: 14,537

I-405

Unknown

Over: I-5

5.2 N JCT SR 516, King, WA

Built 1965 ADT: 224,903

51ST AVE S

Unknown

Over: SR 518

1.0 E JCT SR 99, King, WA

Built 1966 ADT: 109,319

8TH AVE

Unknown

Over: I-5

1.2 N JCT I-90, King, WA

Built 1964 ADT: 172,787

UNIV-N RAMP

Unknown

Over: I-5

1.2 N JCT I-90, King, WA

Built 1965 ADT: 86,394

PIKE ST

Unknown

Over: I-5

1.5 N JCT I-90, King, WA

Built 1964 ADT: 195,009

PINE ST-BOREN AVE

Unknown

Over: I-5

1.6 N JCT I-90, King, WA

Built 1965 ADT: 195,009

MILITARY ROAD

Unknown

Over: S-W RAMP TO S 188TH ST

3.3 N JCT SR 516, King, WA

Built 1964 ADT: 3,684

Showing 301-350 of 8,808 bridges

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.

Washington vs national bridge condition

Condition Distribution

Counties (39)

Bridges Needing Most Attention in Washington

SILVER CK RD 00670

4TH ST

NO DATA ENTERED

STEVENS RD. -IRRIG

PEARL HILL RD

FARM ACCESS

All Bridges in Washington

I-90

61ST AVE S

SR 99

I-5

I-5

I-5 NBCD

MILITARY RD

S 208TH ST

S 180TH ST

S 216TH ST

I-5

I-5

I-5 NB

MADISON ST

SPRING ST

SENECA ST

N-SENECA RAMP

SPRING ST RAMP

5TH AVE NE

NE 80TH ST

NE 92ND ST

N-85TH RAMP

N 85TH TO SB I-5

I-5

I-5

NP RY

I-405

NE117TH ST

NE 130TH ST

SR 523 / NE 145TH

I-5

I-5

NE 185TH ST

NE 195TH ST PED

I-405

I-405

S178TH ST

KLICKITAT DR

I-5

I-5

I-5

N-W RAMP

RAMP I-5 TO I-405

I-405

51ST AVE S

8TH AVE

UNIV-N RAMP

PIKE ST

PINE ST-BOREN AVE

MILITARY ROAD

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