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

SR 395

Good

Over: BNSF RR

4.6 N JCT I-90, Spokane, WA

Built 2015 Load: 44.4 t ADT: 5,500

SR 124

Good

Over: UPRR

5.3 E JCT US 12, Walla Walla, WA

Built 2017 Load: 44.4 t ADT: 3,240

SR 8 WB

Good

Over: EAST FORK WILDCAT CREEK

0.3 E JCT SR 108, Grays Harbor, WA

Built 2018 Load: 44.4 t ADT: 8,278

SR 902

Good

Over: I-90

12.3 E JCT I-90, Spokane, WA

Built 2020 Load: 44.4 t ADT: 5,852

QUINAULT S SHORE

Good

Over: MERRIMAN CREEK

6.6 E JCT SR 101, Grays Harbor, WA

Built 1985 Load: 44.4 t ADT: 240

SULTAN BASIN RD

Good

Over: OLNEY CREEK

11.1 NE JCT SR 2, Snohomish, WA

Built 1991 Load: 44.4 t ADT: 77

SR 410

Good

Over: SILVER CREEK

13.4 E KING CO, Pierce, WA

Built 1996 Load: 44.4 t ADT: 1,427

MARTIN WAY E

Good

Over: SLOUGH

.19 m SW of Nisqually Cut, Thurston, WA

Built 2000 Load: 44.4 t ADT: 17,895

CW NEAL ROAD

Good

Over: DRAINAGE DITCH

0.3 MI W OF SR-203, King, WA

Built 2007 Load: 44.4 t ADT: 150

CLEARBROOK RD

Good

Over: JOHNSON CREEK

00.4 W NOOKSACK RD., Whatcom, WA

Built 2010 Load: 44.4 t ADT: 240

ANDERSON ROAD

Good

Over: CURTIS CREEK

3.8 SW WINLOCK, Lewis, WA

Built 2009 Load: 44.4 t ADT: 36

RESER RD

Good

Over: YELLOWHAWK CREEK

0.19 E of HOWARD ST, Walla Walla, WA

Built 2011 Load: 44.4 t ADT: 3,610

RD. NO. 24

Good

Over: NO NAME CREEK

M.P. 5.2 RD. NO. 24, Snohomish, WA

Built 1988 Load: 44.5 t ADT: 85

ROAD

Good

Over: S PRAIRIE CREEK

5.9 MI E OF SUNSET LAKE, Pierce, WA

Built 1966 Load: 44.5 t ADT: 41

NO DATA ENTERED

Good

Over: E FK HUMPTULIPS RIVER

NO DATA ENTERED, Grays Harbor, WA

Built 1979 Load: 44.5 t ADT: 150

ROAD

Good

Over: TOUCHET RIVER

NO DATA ENTERED, Columbia, WA

Built 2005 Load: 44.5 t ADT: 60

US 101

Good

Over: BONE RIVER

16.3 N JCT SR 4, Pacific, WA

Built 2013 Load: 44.7 t ADT: 3,392

USFS ROAD

Good

Over: NORTH FORK TOUCHET RIVER

TOUCHET CORRAL SNOWPARK, Columbia, WA

Built 2010 Load: 44.7 t ADT: 10

BROWN RD. N.

Good

Over: WAPATO CANAL

01.00 N W WAPATO RD, Yakima, WA

Built 1990 Load: 44.7 t ADT: 41

Vantage Rd

Good

Over: FRENCHMAN SPRINGS

Vantage Rd 1.1 W Silica, Grant, WA

Built 1931 Load: 44.7 t ADT: 169

ARTIC ROAD

Good

Over: LITTLE NORTH RIVER

0.25 E JCT US 101, Grays Harbor, WA

Built 2001 Load: 44.7 t ADT: 149

RIMROCK MEADOWS RD

Good

Over: DRY WASH

32/33 23N25E, Douglas, WA

Built 2002 Load: 44.7 t ADT: 438

JOHNSON/9050

Good

Over: STALEY CREEK

4.18 MI. SW SR 270, Whitman, WA

Built 2007 Load: 44.7 t ADT: 156

Surro Ave

Good

Over: CSO Detention Tank

Surro Ave, Spokane, WA

Built 2009 Load: 44.7 t ADT: 32

MAY CR RD

Good

Over: MAY CREEK

1.6 NE JCT SR2, Snohomish, WA

Built 2017 Load: 44.7 t ADT: 303

BISCUIT RIDGE RD

Good

Over: DRY CREEK

6.057 MI SOUTH OF SR 12, Walla Walla, WA

Built 2018 Load: 44.7 t ADT: 45

CANNERY WAY

Good

Over: WHITE RIVER

0.3 E JCT SR 167, Pierce, WA

Built 2019 Load: 44.7 t ADT: 9,500

SR 99

Good

Over: MERCER ST

5.7 N JCT SR 509, King, WA

Built 2015 Load: 45.0 t ADT: 19,818

MURRAY RD SW

Good

Over: I-5

8.7 N THURSTON CO, Pierce, WA

Built 2020 Load: 45.0 t ADT: 7,879

EAST L STREET

Good

Over: I-5

0.8 N JCT SR 7, Pierce, WA

Built 2021 Load: 45.0 t ADT: 5,491

FS ROUTE NO. 1104

Good

Over: GRANITE CREEK

CACHE CREEK ROAD, Pend Oreille, WA

Built 1957 Load: 45.0 t ADT: 50

FLETCHER LANE

Good

Over: WENAS CREEK

00.54 N SO WENAS RD, Yakima, WA

Built 1976 Load: 45.0 t ADT: 274

Locust Way

Good

Over: Swamp Creek

0.9 mi north King Co line, Snohomish, WA

Built 2016 Load: 45.0 t ADT: 11,359

Adams road

Good

Over: Lateral. Block 73

Adams road at Martin, Grant, WA

Built 2017 Load: 45.0 t ADT: 247

SEABECK-HOLLY RD

Good

Over: ANDERSON CREEK

0.01 SW JCT OLD HOLLYHILL, Kitsap, WA

Built 2017 Load: 45.0 t ADT: 291

WHITE/1075

Good

Over: WILLOW CREEK

0.04 MI S WARNER, Whitman, WA

Built 2020 Load: 45.0 t ADT: 21

Homer Adams Road

Good

Over: Deckerville Creek

0.15 mi. S Deckerville rd, Mason, WA

Built 2021 Load: 45.0 t ADT: 50

NO DATA ENTERED

Good

Over: TRIB TO MATHENY CREEK

NO DATA ENTERED, Jefferson, WA

Built 2004 Load: 45.2 t ADT: 15

SR 291

Good

Over: LITTLE SPOKANE R

10.0 N JCT US 2, Spokane, WA

Built 1966 Load: 45.4 t ADT: 8,085

I-405

Good

Over: 228TH ST

1.3 N KING CO, Snohomish, WA

Built 1968 Load: 45.4 t ADT: 45,734

SR 162

Good

Over: S PRAIRIE CREEK

13.5 E JCT SR 410, Pierce, WA

Built 1969 Load: 45.4 t ADT: 6,481

US 12

Good

Over: W-E RAMP

14.6 E JCT SR 410, Yakima, WA

Built 1970 Load: 45.4 t ADT: 6,839

37TH ST NW

Good

Over: SR 167

2.7 N JCT SR 18, King, WA

Built 1971 Load: 45.4 t ADT: 5,527

US 12

Good

Over: UP RR

0.8 E JCT SR 125 SPUR, Walla Walla, WA

Built 1972 Load: 45.4 t ADT: 13,009

SR 530

Good

Over: DEER CREEK

11.6 E JCT SR 9, Snohomish, WA

Built 1972 Load: 45.4 t ADT: 4,505

SR 14

Good

Over: 27TH ST & BN RY

2.1 E JCT SR 500, Clark, WA

Built 1972 Load: 45.4 t ADT: 17,541

POWELL RD

Good

Over: I-5

9.3 N JCT SR 4, Cowlitz, WA

Built 1975 Load: 45.4 t ADT: 771

I-182

Good

Over: N 20TH AVE

0.4 E JCT US 395, Franklin, WA

Built 1968 Load: 45.4 t ADT: 19,145

US 101

Good

Over: WEST FORK HOQUIAM RIVER

6.0 N JCT SR 109, Grays Harbor, WA

Built 1985 Load: 45.4 t ADT: 2,585

US 101

Good

Over: SNOW CREEK

0.1 S JCT SR 20, Jefferson, WA

Built 1986 Load: 45.4 t ADT: 13,287

Showing 6,851-6,900 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.