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

SUNNYSIDE ROAD

Fair

Over: WHITE SALMON RIVER

1.38 NE JCT SR 141, Klickitat, WA

Built 1972 Load: 11.3 t ADT: 292

LAST CHANCE RD

Fair

Over: MILL CREEK

02.15 N FROG HOLLOW, Walla Walla, WA

Built 1977 Load: 11.3 t ADT: 681

TIETON RESERVOIRRD

Fair

Over: TIETON RIVER

00.10 S SR 12, Yakima, WA

Built 1958 Load: 11.3 t ADT: 809

OLD GOLDENDALE RD.

Fair

Over: TOPPENISH CREEK

00.73 S MARIONDRAIN, Yakima, WA

Built 1948 Load: 11.3 t ADT: 140

SUMAS AVE

Fair

Over: JOHNSON CR

0.15 N FRONT ST, Whatcom, WA

Built 1970 Load: 11.3 t ADT: 926

ADAMS STREET

Fair

Over: ESQUATZEL COULEE

0.0 E JCT N 2ND AV, Franklin, WA

Built 1966 Load: 11.3 t ADT: 431

W NORTH BEND WAY

Fair

Over: S FORK SNOQUALMIE RIVER

3.2 MI E OF I-90, King, WA

Built 1941 Load: 11.3 t ADT: 6,500

SR 99

Fair

Over: SR 518 RIVERTON HTS

4.9 N JCT SR 516, King, WA

Built 1962 Load: 11.7 t ADT: 32,844

I-5

Fair

Over: MCALLISTER CR

2.2 N JCT SR 510, Thurston, WA

Built 1968 Load: 11.7 t ADT: 48,169

I-5

Fair

Over: MCALLISTER CREEK

2.2 N JCT SR 510, Thurston, WA

Built 1968 Load: 11.7 t ADT: 48,169

U PEOH POINT ROAD

Fair

Over: HILINE CANAL

01.64 W MARKOVICH R, Kittitas, WA

Built 1988 Load: 11.7 t ADT: 701

NE 68TH ST

Fair

Over: MATNEY CREEK

0.4E OF NE217 AVE, Clark, WA

Built 1938 Load: 11.7 t ADT: 807

DUFFY ROAD

Fair

Over: SULPHER CREEK WASTEWAY

00.11 NW SR 241, Yakima, WA

Built 1970 Load: 11.7 t ADT: 141

COUNTY HIGHWAY

Fair

Over: POTHOLES EAST CANAL

0.11 E JCT 903, Franklin, WA

Built 1954 Load: 11.7 t ADT: 943

MEYERS RD.

Fair

Over: WANITY SLOUGH

00.09 S CHAMBERS RD, Yakima, WA

Built 1965 Load: 11.7 t ADT: 16

BAKER LK RD

Fair

Over: ROCKY CR

0.52 N SKAGIT LINE, Whatcom, WA

Built 1956 Load: 11.7 t ADT: 917

SR 548

Fair

Over: DAKOTA CREEK

11.5 W JCT I-5, Whatcom, WA

Built 1930 Load: 11.8 t ADT: 7,586

PIPELINE ROAD

Fair

Over: LITTLE KLICKITAT RIVER

0.2 NW JCT SR 142, Klickitat, WA

Built 1965 Load: 11.8 t ADT: 1,200

WILLIAMS CREEK RD

Fair

Over: WILLIAMS CREEK

1.3 W JCT CR 9641, Grays Harbor, WA

Built 1973 Load: 11.8 t ADT: 146

MCGRAW ST

Fair

Over: RAVINE

McGRAW ST & 3RD AVE N, King, WA

Built 1935 Load: 11.8 t ADT: 3,000

E INTERLAKEN BLVD

Fair

Over: 26TH AVE E

26TH AVE E & INTERLAKEN, King, WA

Built 1912 Load: 11.8 t ADT: 200

SR 14

Fair

Over: BN RR

18.7 E CLARK CO, Skamania, WA

Built 1978 Load: 12.0 t ADT: 4,851

SR 20

Fair

Over: DECEPTION PASS

25.4 E JCT SR 525, Island, WA

Built 1935 Load: 12.0 t ADT: 18,339

SR 14

Fair

Over: ROCK CR

22.1 E CLARK CO, Skamania, WA

Built 1938 Load: 12.0 t ADT: 6,378

I-90

Fair

Over: I-5

JCT I-5, King, WA

Built 1966 Load: 12.0 t ADT: 19,194

I-90

Fair

Over: CITY STREETS

0.8 E JCT US 195, Spokane, WA

Built 1967 Load: 12.0 t ADT: 97,890

S-S RAMP

Fair

Over: S 116TH WAY

JCT SR 99, King, WA

Built 1966 Load: 12.0 t ADT: 1,042

US 12

Fair

Over: SR 107 RR FLOOD PLAIN

10.3 E JCT US 101, Grays Harbor, WA

Built 1969 Load: 12.0 t ADT: 8,348

BEAUDRY ROAD

Fair

Over: MOXEE DRAIN

00.05 S BEAUCHENE, Yakima, WA

Built 1971 Load: 12.0 t ADT: 290

HARTFORD ROAD

Fair

Over: ROZA POWER WASTEWAY

00.25 W BUTTERFIELD, Yakima, WA

Built 1964 Load: 12.0 t ADT: 630

APP/GOLF CRS. 1020

Fair

Over: HANGMAN CREEK

1.70 MI SE FARMINGTON, Whitman, WA

Built 1963 Load: 12.0 t ADT: 20

ESTES/5300

Fair

Over: BRANCH FOUR MILE CREEK

00.20 MI E SR 27, Whitman, WA

Built 1973 Load: 12.0 t ADT: 123

SR 231

Fair

Over: SPOKANE RIVER

13.6 N JCT US 2, Lincoln, WA

Built 1949 Load: 12.3 t ADT: 1,069

NB SR 539

Fair

Over: NOOKSACK R OVERFLOW

2.6 N JCT SR 544, Whatcom, WA

Built 1950 Load: 12.3 t ADT: 8,300

BROADWAY AVE. NB

Fair

Over: I-5 RAMPS

0.1 N JCT I-5, Snohomish, WA

Built 1950 Load: 12.3 t ADT: 5,763

I-5

Fair

Over: KING-JACKSON ST

0.3 N JCT I-90, King, WA

Built 1965 Load: 12.3 t ADT: 69,913

I-5

Fair

Over: SR 529 NB RAMP

4.4 N JCT US 2, Snohomish, WA

Built 1968 Load: 12.3 t ADT: 63,840

9TH ST SW/94TH AVE

Fair

Over: SR 512

6.2 E JCT SR 7, Pierce, WA

Built 1971 Load: 12.3 t ADT: 29,975

COUNTY ROAD

Fair

Over: POTHOLES EAST CANAL

0.79W LANGFORD 605, Franklin, WA

Built 1957 Load: 12.3 t ADT: 105

THOMPSON ROAD

Fair

Over: COWICHE CREEK N. FORK

00.36 E ELLIOT ROAD, Yakima, WA

Built 1951 Load: 12.3 t ADT: 991

Nuss Farm Road

Fair

Over: EAST LOW CANAL EL 20 LAT

NR MOSES LAKE WA, Grant, WA

Built 1957 Load: 12.6 t ADT: 5

SR 520

Fair

Over: PORTAGE BAY

0.3 E JCT I-5, King, WA

Built 1963 Load: 12.6 t ADT: 35,304

SR 99

Fair

Over: TUKWILA INTL BLVD

1.8 N JCT I-5, King, WA

Built 1966 Load: 12.6 t ADT: 17,503

I-5 SB

Fair

Over: RAILROAD

3.8 N JCT SR 527, Snohomish, WA

Built 1967 Load: 12.6 t ADT: 88,747

US 12

Fair

Over: SLIDE AREA

5.0 E JCT SR 123, Lewis, WA

Built 1968 Load: 12.6 t ADT: 1,729

I-90

Fair

Over: FRONT ST N

1.3 E JCT SR 900, King, WA

Built 1971 Load: 12.6 t ADT: 30,913

SR509

Fair

Over: THEA FOSS WATRWAY & D ST

0.1 N JCT I-705, Pierce, WA

Built 1996 Load: 12.6 t ADT: 36,578

TULE RD.

Fair

Over: IRRIGATION CANAL

00.48 W PLANK ROAD, Yakima, WA

Built 1957 Load: 12.6 t ADT: 36

ANDERSON ROAD

Fair

Over: UPRR TRACKS

1.0 E CHENEY-SPOK, Spokane, WA

Built 1971 Load: 12.6 t ADT: 221

BUMPING RIVER ROAD

Fair

Over: BUMPING RIVER

00.34 E OF MP 10, Yakima, WA

Built 1955 Load: 12.6 t ADT: 568

Showing 101-150 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.