State profile · Below median Poor share

Washington bridge safety

According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Washington.

8,474
Public bridges
50.1%
Good condition
5.5%
Poor condition

Washington has 8,474 public highway bridges in the FHWA's 2024 National Bridge Inventory, and 462 of them are rated Poor.

That is 5.5% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 24 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.

Inventory: FHWA NBI 2024 · last ETL August 2026

Total Bridges

8,474

Public highway bridges in Washington

Good Condition

50.1%

4,246 bridges rated 7-9

0.1pp vs 50% benchmark

Poor Condition

5.5%

462 bridges whose lowest applicable component is rated 0-4

-2.1pp vs national avg 7.5%

Washington vs national bridge condition

Washington - Good condition share 50.1%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Washington - Poor-condition share 18.2%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

Washington in the national condition pattern

Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.

Inventory size and Poor-condition share are different measures: Washington has 8,474 bridges and a 5.5% Poor-condition share in the 2024 NBI, rank #24 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold. Scatter plot of 54 data points. 0%10%20%30%40% 0k20k40k60k Public bridges in inventory (thousands) Poor-condition share (%) WA, Public bridges in inventory (thousands): 8.5k · Poor-condition share (%): 5.45%AL, Public bridges in inventory (thousands): 16.2k · Poor-condition share (%): 3.35%AK, Public bridges in inventory (thousands): 1.7k · Poor-condition share (%): 7.89%AZ, Public bridges in inventory (thousands): 8.6k · Poor-condition share (%): 1.15%AR, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 5.43%CA, Public bridges in inventory (thousands): 25.8k · Poor-condition share (%): 5.91%CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%DE, Public bridges in inventory (thousands): 0.9k · Poor-condition share (%): 1.26%DC, Public bridges in inventory (thousands): 0.3k · Poor-condition share (%): 1.95%FL, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 2.79%GA, Public bridges in inventory (thousands): 15.1k · Poor-condition share (%): 1.59%GU, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 12.77%HI, Public bridges in inventory (thousands): 1.2k · Poor-condition share (%): 6.53%ID, Public bridges in inventory (thousands): 4.6k · Poor-condition share (%): 4.9%IL, Public bridges in inventory (thousands): 26.9k · Poor-condition share (%): 9.35%IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%IA, Public bridges in inventory (thousands): 23.7k · Poor-condition share (%): 19.16%KS, Public bridges in inventory (thousands): 24.9k · Poor-condition share (%): 5.26%KY, Public bridges in inventory (thousands): 14.5k · Poor-condition share (%): 7.37%LA, Public bridges in inventory (thousands): 12.7k · Poor-condition share (%): 11.48%ME, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 15.41%MD, Public bridges in inventory (thousands): 5.5k · Poor-condition share (%): 4.56%MA, Public bridges in inventory (thousands): 5.3k · Poor-condition share (%): 8.88%MI, Public bridges in inventory (thousands): 11.4k · Poor-condition share (%): 11.27%MN, Public bridges in inventory (thousands): 13.5k · Poor-condition share (%): 4.44%MS, Public bridges in inventory (thousands): 16.7k · Poor-condition share (%): 6.03%MO, Public bridges in inventory (thousands): 24.6k · Poor-condition share (%): 8.95%MT, Public bridges in inventory (thousands): 5.2k · Poor-condition share (%): 6.81%NE, Public bridges in inventory (thousands): 15.4k · Poor-condition share (%): 7.9%NV, Public bridges in inventory (thousands): 2.1k · Poor-condition share (%): 1.14%NH, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 7.51%NJ, Public bridges in inventory (thousands): 6.8k · Poor-condition share (%): 6.01%NM, Public bridges in inventory (thousands): 4k · Poor-condition share (%): 4.51%NY, Public bridges in inventory (thousands): 17.6k · Poor-condition share (%): 9.43%NC, Public bridges in inventory (thousands): 19.2k · Poor-condition share (%): 6.76%ND, Public bridges in inventory (thousands): 4.3k · Poor-condition share (%): 10.98%OH, Public bridges in inventory (thousands): 26.7k · Poor-condition share (%): 4.74%OK, Public bridges in inventory (thousands): 22.9k · Poor-condition share (%): 7.7%OR, Public bridges in inventory (thousands): 8.3k · Poor-condition share (%): 4.61%PA, Public bridges in inventory (thousands): 23.3k · Poor-condition share (%): 12.58%PR, Public bridges in inventory (thousands): 2.4k · Poor-condition share (%): 13.92%RI, Public bridges in inventory (thousands): 0.8k · Poor-condition share (%): 15.2%SC, Public bridges in inventory (thousands): 9.5k · Poor-condition share (%): 6.17%SD, Public bridges in inventory (thousands): 5.9k · Poor-condition share (%): 16.36%TN, Public bridges in inventory (thousands): 20.4k · Poor-condition share (%): 4.41%TX, Public bridges in inventory (thousands): 56.7k · Poor-condition share (%): 1.23%UT, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 2.91%VT, Public bridges in inventory (thousands): 2.9k · Poor-condition share (%): 2.9%VI, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 29.17%VA, Public bridges in inventory (thousands): 14.1k · Poor-condition share (%): 3.39%WV, Public bridges in inventory (thousands): 7.3k · Poor-condition share (%): 18.64%WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%
Inventory size and Poor-condition share are different measures: Washington has 8,474 bridges and a 5.5% Poor-condition share in the 2024 NBI, rank #24 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold.

Washington vs all states by public bridge inventory

Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges

8,474 29th of 54 higher than 25 of 54 states

States and territories, banded by public bridge inventory size

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · 2024

Read the rank neighborhood for Washington

The highlighted point is Washington: 8,474 bridges and 5.45% in Poor condition, rank #24 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Washington on that same Poor-share ordering:

  • Kansas: 24,894 bridges · 5.26% Poor
  • Arkansas: 12,974 bridges · 5.43% Poor
  • Washington: 8,474 bridges · 5.45% Poor
  • California: 25,848 bridges · 5.91% Poor
  • New Jersey: 6,827 bridges · 6.01% Poor

The full national sortable table lives on the rankings page.

Material families in Washington

Exclusive FHWA material families across all 8,474 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains Washington’s inventory

State agency holds 39.9% of the 8,474 public highway bridges filed under Washington in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When Washington’s bridges were built

Pre-1950 construction accounts for 12.8% of the 8,474 bridges with a recorded original year in Washington. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

Washington50.1%44.4%GoodFairPoor
Bridge inventory deck-condition mix - Washington (FHWA NBI)

Counties (39)

Adams 187 Asotin 29 Benton 167 Chelan 149 Clallam 151 Clark 218 Columbia 86 Cowlitz 160 Douglas 40 Ferry 53 Franklin 134 Garfield 54 Grant 306 Grays Harbor 363 Island 7 Jefferson 99 King 1238 Kitsap 115 Kittitas 308 Klickitat 90 Lewis 419 Lincoln 180 Mason 133 Okanogan 161 Pacific 120 Pend Oreille 71 Pierce 472 San Juan 13 Skagit 254 Skamania 120 Snohomish 500 Spokane 307 Stevens 75 Thurston 205 Wahkiakum 36 Walla Walla 195 Whatcom 354 Whitman 347 Yakima 558

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.

KS

Kansas

5.26% top marginal rate
Structure
Progressive
Burden @ $100K
$24,894

AR

Arkansas

5.43% top marginal rate
Structure
Progressive
Burden @ $100K
$12,974
Selected

WA

Washington

5.45% top marginal rate
Structure
Progressive
Burden @ $100K
$8,474

CA

California

5.91% top marginal rate
Structure
Progressive
Burden @ $100K
$25,848

NJ

New Jersey

6.01% top marginal rate
Structure
Progressive
Burden @ $100K
$6,827

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.

STATE ROUTE 509

Poor

Over: PUYALLUP WATERWAY RR

2.5 N JCT I-5, Pierce, WA

Built 1911 Load: 0.0 t ADT: 2,400

I-82

Poor

Over: WASTEWATER NUMBER 3

8.4 E JCT US 97, Yakima, WA

Built 1980 Load: 0.0 t ADT: 28,146

Fish War Mem X-ing

Poor

Over: PUYALLUP RIVER

0.2 N JCT I-5, Pierce, WA

Built 1925 Load: 0.0 t ADT: 15,255

POST STREET

Poor

Over: SPOKANE RIVER

00.6 N OF I-90, Spokane, WA

Built 1917 Load: 0.0 t ADT: 1,685

W Galer Street

Poor

Over: Private Road

Magnolia Seattle, King, WA

Built 1929 Load: 0.0 t

SILVER CK RD 00670

Poor

Over: NINE MILE CREEK

19.05 E SR 21, Ferry, WA

Built 1958 Load: 2.7 t ADT: 47

All Bridges in Washington

US 101

Good

Over: S FORK BOULDER CR

36.2 N JCT SR 109, Grays Harbor, WA

Built 2004 Load: 48.1 t ADT: 1,984

WB I-90

Good

Over: TIBBETTS CREEK

5.4 E JCT I-405, King, WA

Built 2004 Load: 48.1 t ADT: 39,272

EB I-90

Good

Over: TIBBETTS CREEK

5.4 E JCT I-405, King, WA

Built 2004 Load: 48.1 t ADT: 39,272

PERRY STREET

Good

Over: US 395

0.9 N JCT US 2, Spokane, WA

Built 2007 Load: 48.1 t ADT: 5,700

SR 6

Good

Over: S FORK CHEHALIS R

18.0 E PACIFIC CO, Lewis, WA

Built 2009 Load: 48.1 t ADT: 3,973

NO DATA ENTERED

Good

Over: GALE CREEK

NO DATA ENTERED, Kittitas, WA

Built 1983 Load: 48.1 t ADT: 100

RAINY CREEK

Good

Over: NASON CREEK

NO DATA ENTERED, Chelan, WA

Built 1996 Load: 48.1 t ADT: 25

PARK AV S

Good

Over: CLOVER CREEK

.25 W JCT SR7, Pierce, WA

Built 1967 Load: 48.1 t ADT: 2,000

FRONTIER STREET

Good

Over: CLALLAM RIVER

00.44 NE JCT SR112, Clallam, WA

Built 1995 Load: 48.1 t ADT: 400

OLY.HOTSPRINGS RD.

Good

Over: LITTLE RIVER

00.2 SE JCT SR101, Clallam, WA

Built 1986 Load: 48.1 t ADT: 557

5 TH ST - INDEX

Good

Over: N.F. SKYKOMISH RIVER

1.0 NE JCT SR 2, Snohomish, WA

Built 1999 Load: 48.1 t ADT: 842

SR 225

Good

Over: DRAINAGE CANAL

0.3 N JCT SR 224, Benton, WA

Built 2003 Load: 48.1 t ADT: 10,570

PLEASANT GLADE RD

Good

Over: WOODLAND CREEK

0.85 m E of SleaterKinney, Thurston, WA

Built 2003 Load: 48.1 t ADT: 420

O.K. MILL RD

Good

Over: DUBUQUE CREEK

3.6 SE JCT SR92, Snohomish, WA

Built 2005 Load: 48.1 t ADT: 8,197

Bear Paw Rd

Good

Over: West Branch Priest River

7.4 mile w/o Idaho Hwy 57, Pend Oreille, WA

Built 2007 Load: 48.1 t ADT: 100

BAKER LK RD

Good

Over: SULPHUR CR

2.05 N SKAGIT LINE, Whatcom, WA

Built 2010 Load: 48.1 t ADT: 916

LOGAN HILL ROAD

Good

Over: BERWICK CREEK

1.10 JCT 94000, Lewis, WA

Built 2007 Load: 48.1 t ADT: 1,001

WAHATIS PEAK ROAD

Good

Over: WAHLUKE BRANCH CANAL

NR MATTAWA WA, Grant, WA

Built 1967 Load: 48.3 t ADT: 3

SR 104

Good

Over: QUILCENE-CHIMAKUM RD

4.2 E JCT US 101, Jefferson, WA

Built 1964 Load: 48.3 t ADT: 8,606

NORTH MERCER WAY

Good

Over: I-90

5.0 E JCT SR 900, King, WA

Built 1989 Load: 48.3 t ADT: 2,922

405 N-E RAMP

Good

Over: 116TH AVE NE

3.8 N JCT I-90, King, WA

Built 2011 Load: 48.3 t ADT: 27,000

SR 507 NB

Good

Over: I-5 RAMP

JCT I-5, Lewis, WA

Built 2014 Load: 48.3 t ADT: 7,639

US 101

Good

Over: MATRIOTTI CREEK

14.6 E JCT SR 117, Clallam, WA

Built 2017 Load: 48.3 t ADT: 20,910

E LAKE SAMMAMISH

Good

Over: N FORK ISSAQUAH CREEK

1.3 E JCT SR 900, King, WA

Built 2017 Load: 48.3 t ADT: 35,000

I-405

Good

Over: MAY CREEK

1.8 N JCT SR 900, King, WA

Built 2023 Load: 48.3 t ADT: 72,796

KELLY RD NE

Good

Over: HARRIS CREEK

2.5 MI E OF SR-203, King, WA

Built 2005 Load: 48.3 t ADT: 3,101

Riverview Blvd. S

Good

Over: Veterans Dr.

1.5 MI E OF I-5, King, WA

Built 2007 Load: 48.3 t ADT: 750

108TH AVE NE

Good

Over: YARROW CREEK

5.27 E JCT SR 513, King, WA

Built 2014 Load: 48.6 t ADT: 12,500

NO DATA ENTERED

Good

Over: BIG MEADOW CREEK

NO DATA ENTERED, Chelan, WA

Built 2023 Load: 48.6 t ADT: 80

DOETSCH RANCH ROAD

Good

Over: BURLINGTON NORTHERN RR

BEACON ROCK STATE PARK, Skamania, WA

Built 2006 Load: 48.6 t ADT: 200

CASCADE DRIVE

Good

Over: GREENLEAF CREEK

00.1 N BPA LINES, Skamania, WA

Built 2004 Load: 48.6 t ADT: 100

SE 416th ST

Good

Over: NEWAUKUM CREEK

0.6 MI E OF SR-169, King, WA

Built 2009 Load: 48.6 t ADT: 1,874

SOUTH KINGSTON RD

Good

Over: CARPENTER CREEK

0.1 S JCT W KINGSTON RD, Kitsap, WA

Built 2011 Load: 48.6 t ADT: 4,891

S. Lakeshore Road

Good

Over: Slide Ridge Chute

MP 8.99 So Lakeshore Road, Chelan, WA

Built 2022 Load: 48.6 t ADT: 447

SR 432 E-S RAMP

Good

Over: SR 432 E-E RAMP

JCT I-5, Cowlitz, WA

Built 2011 Load: 48.9 t ADT: 11,154

SR 532

Good

Over: DAVIS SLOUGH

2.9 E ROUTE BEGIN, Snohomish, WA

Built 2015 Load: 48.9 t ADT: 20,742

FIRST STREET

Good

Over: PATIT CREEK

0.2 N JCT US 12, Columbia, WA

Built 2005 Load: 48.9 t ADT: 100

ABERNATHY CREEK RD

Good

Over: ABERNATHY CREEK

1.40 N OF SR 4 (MP 48.32), Cowlitz, WA

Built 2005 Load: 48.9 t ADT: 371

Nelson Siding Road

Good

Over: Little Creek

2.68 SE of I-90, Kittitas, WA

Built 2012 Load: 48.9 t ADT: 800

SCHMID ROAD

Good

Over: DRAINAGE CANAL

0.1 N JCT CR 1098, Grays Harbor, WA

Built 2013 Load: 48.9 t ADT: 74

JAMES STREET

Good

Over: SQUALICUM CREEK

1 MI. N. OF SUNSET, Whatcom, WA

Built 2015 Load: 48.9 t ADT: 11,500

72ND AVENUE SOUTH

Good

Over: Mill Creek

0.25 MI E OF SR-181, King, WA

Built 2017 Load: 48.9 t ADT: 5,000

SR 500

Good

Over: 15TH ST

0.4 E JCT I-5, Clark, WA

Built 1984 Load: 49.0 t ADT: 16,812

US 2

Good

Over: N FK DEEP CR LOWER X-ING

0.5 E LINCOLN CO, Spokane, WA

Built 1947 Load: 49.0 t ADT: 6,935

SR 20

Good

Over: WISEMAN CREEK

4.5 E JCT SR 9, Skagit, WA

Built 1948 Load: 49.0 t ADT: 9,377

LITTLE ROCK RD

Good

Over: BEAVER CREEK

6.9 JCT SR 12, Thurston, WA

Built 1951 Load: 49.0 t ADT: 3,577

SR 20

Good

Over: ABANDONED RR

8.1 E ISLAND CO, Skagit, WA

Built 1962 Load: 49.0 t ADT: 17,952

SR 7 NB

Good

Over: SR 7 SB

5.6 N JCT SR 512, Pierce, WA

Built 1965 Load: 49.0 t ADT: 14,255

NB RAMP

Good

Over: N-E RAMP

2.7 N PIERCE CO, King, WA

Built 1975 Load: 49.0 t ADT: 3,756

US 195

Good

Over: POWERS RD

7.0 N WHITMAN CO, Spokane, WA

Built 1973 Load: 49.0 t ADT: 4,652

Showing 7,101-7,150 of 8,474 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.

What to do with this

Use Washington's inventory picture to drill to a county or a specific span.

  • Browse counties in Washington and open the highest-Poor shares first. County list
  • See where this state sits among peers on Poor-condition share. State rankings
  • Compare this state with another jurisdiction on the same measures. State compare

NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Washington Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.