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

FERN LOOP

Fair

Over: CID CANAL

JCT FERN LP/GROSSCUP BLVD, Benton, WA

Built 1980 Load: 16.3 t ADT: 228

MAINTENANCE ROAD

Fair

Over: WEST CANAL W39.9

West Canal W39.9 Station, Grant, WA

Built 2016 Load: 16.5 t ADT: 10

US 101

Fair

Over: HAMMA HAMMA RIVER

5.1 S JEFFERSON CO, Mason, WA

Built 1924 Load: 16.5 t ADT: 2,489

SR 26

Fair

Over: CMSTPP RR

9.3 E GRANT CO, Adams, WA

Built 1956 Load: 16.5 t ADT: 7,237

I-5

Fair

Over: COLUMBIA RIVER

OREGON LINE, Clark, WA

Built 1958 Load: 16.5 t ADT: 57,550

I-5

Fair

Over: RAILROAD - LAUNDRY SPUR

3.7 N THURSTON CO, Pierce, WA

Built 1957 Load: 16.5 t ADT: 124,570

I-5

Fair

Over: TERRAIN

4.5 N JCT SR 516, King, WA

Built 1966 Load: 16.5 t ADT: 112,452

SR 518

Fair

Over: SR 509

JCT SR 509, King, WA

Built 1971 Load: 16.5 t ADT: 41,591

MABTON-SUNNYSIDE

Fair

Over: I-82

9.7 E JCT SR 223, Yakima, WA

Built 1982 Load: 16.5 t ADT: 6,258

LAT C RD.

Fair

Over: USIS MAIN CANAL

00.06 S LATERAL 1, Yakima, WA

Built 1941 Load: 16.5 t ADT: 170

SO. FRONTAGE RD

Fair

Over: WEBER COULEE

S Frontage 1.4 E of U SE, Grant, WA

Built 1938 Load: 16.5 t ADT: 66

SCOON ROAD

Fair

Over: SVID CANAL

00.35 S ARROWSMITH, Yakima, WA

Built 1962 Load: 16.5 t ADT: 2,190

COUNTY ROAD

Fair

Over: ELTOPIA BRANCH CANAL

0.01 S. of CRESTLOCH 870, Franklin, WA

Built 1965 Load: 16.5 t ADT: 98

LYMAN HAMILTON HWY

Fair

Over: MANNSER CREEK

0.17 W JCT HAMIL CEM RD, Skagit, WA

Built 1954 Load: 16.5 t ADT: 260

OLD STATE HWY/3150

Fair

Over: IMBLER CREEK

0.12 MI SE SR 23, Whitman, WA

Built 1946 Load: 16.5 t ADT: 40

VASHON HWY SW

Fair

Over: JUDD CREEK

M.P. 5.6 VASHON HWY SW, King, WA

Built 1953 Load: 16.5 t ADT: 4,818

16TH AVE S

Fair

Over: MCSORELY CREEK

1.5 MI N OF HW-99, King, WA

Built 1951 Load: 16.5 t ADT: 10,000

BARRETT RD

Fair

Over: BARRETT CREEK

0.4 N W AXTON RD, Whatcom, WA

Built 1969 Load: 16.5 t ADT: 1,316

PLEASANT ST

Fair

Over: YELLOWHAWK CREEK

00.27E SCHOOL AVE, Walla Walla, WA

Built 1923 Load: 16.5 t ADT: 750

TEAGUE ROAD

Fair

Over: LINCOLN CREEK

5.0 W CENTRALIA, Lewis, WA

Built 1964 Load: 16.5 t ADT: 43

COUNTY ROAD

Fair

Over: ELTOPIA BRANCH CANAL

0.46 E HOOPER 617, Franklin, WA

Built 1965 Load: 16.5 t ADT: 34

LATERAL A RD.

Fair

Over: DRAIN

00.49 S BRANCH ROAD, Yakima, WA

Built 1939 Load: 16.5 t ADT: 1,805

JONES RD

Fair

Over: SUMAS RIVER

00.1 W CONCHMAN RD., Whatcom, WA

Built 1917 Load: 16.5 t ADT: 220

FRYAR AV

Fair

Over: WHITE RIVER

1.1 N JCT SR 410, Pierce, WA

Built 1949 Load: 16.5 t ADT: 2,056

C.C.B.

Fair

Over: C.I.D. CANAL

00.1 S SR240, Benton, WA

Built 1970 Load: 16.5 t ADT: 36,358

ESCURE RANCH

Fair

Over: ROCK CREEK

7.5 miles S of Lamont on, Whitman, WA

Built 1950 Load: 16.8 t ADT: 1

SR 14

Fair

Over: CASCADE DRIVE

16.1 E CLARK CO, Skamania, WA

Built 1978 Load: 16.8 t ADT: 4,851

SR 6

Fair

Over: CHEHALIS R

3.4 E PACIFIC CO, Lewis, WA

Built 1931 Load: 16.8 t ADT: 1,801

I-5

Fair

Over: RR AND CAMERON WAY

0.6 N JCT SR 536, Skagit, WA

Built 1954 Load: 16.8 t ADT: 72,062

I-5

Fair

Over: KLICKITAT DR

5.0 N JCT SR 516, King, WA

Built 1965 Load: 16.8 t ADT: 112,452

I-5 N - 6TH RAMP

Fair

Over: E-6TH RAMP EB LANES

5.5 N JCT SR 900, King, WA

Built 1967 Load: 16.8 t ADT: 5,855

MOUNTAIN VIEW RD

Fair

Over: SR 3

2.1 N JCT SR 303, Kitsap, WA

Built 1980 Load: 16.8 t ADT: 320

COUNTY ROAD

Fair

Over: W B 5 GG

0.02 S FERN 438, Franklin, WA

Built 1959 Load: 16.8 t ADT: 56

COUNTY ARTERIAL

Fair

Over: P-E-41-2-C

0.74E JCT R 507, Franklin, WA

Built 1958 Load: 16.8 t ADT: 255

Sullivan Lake Rd

Fair

Over: Pend Oreille River

0.3 m east of Hwy 31, Pend Oreille, WA

Built 1932 Load: 16.8 t ADT: 705

NE 167TH AVE

Fair

Over: MORGAN CREEK

0.8 S NE199 ST, Clark, WA

Built 1954 Load: 16.8 t ADT: 1,014

CUSTER SCHOOL RD

Fair

Over: DAKOTA CR TRIB

00.5 S BEHME RD, Whatcom, WA

Built 1954 Load: 16.8 t ADT: 843

CUSTER SCHOOL RD

Fair

Over: DAKOTA CR

00.6 S BEHME RD, Whatcom, WA

Built 1950 Load: 16.8 t ADT: 844

SR 225

Fair

Over: YAKIMA RIVER

JCT SR 224, Benton, WA

Built 1957 Load: 16.8 t ADT: 10,570

LINDSAY RD

Fair

Over: SUMAS RIVER

01.0 W GARRISON RD., Whatcom, WA

Built 1956 Load: 16.8 t ADT: 267

NORTHWEST DR

Fair

Over: TEN MILE CR

0.1 S OF LAUREL RD, Whatcom, WA

Built 1935 Load: 16.8 t ADT: 4,900

N.W.GILMAN BLVD.

Fair

Over: ISSAQUAH CK.

0.5 MI S OF I-90, King, WA

Built 1940 Load: 16.8 t ADT: 23,500

TAC SPUR-SCHUST SB

Fair

Over: SCHUSTER PKWY NB

1.0 N JCT SR 509, Pierce, WA

Built 1974 Load: 16.8 t ADT: 7,955

DAM ACCESS ROAD

Fair

Over: WEYERHAEUSER CO HAUL RD

MUD MOUNTAIN DAM WA, King, WA

Built 1960 Load: 16.8 t ADT: 75

SR 162

Fair

Over: PUYALLUP RIVER

0.5 E JCT SR 410, Pierce, WA

Built 1973 Load: 17.2 t ADT: 20,071

US 12

Fair

Over: MOX CHEHALIS CREEK

4.5 E JCT SR 8, Grays Harbor, WA

Built 1937 Load: 17.2 t ADT: 5,708

US 12

Fair

Over: GULCH

6.2 E JCT SR 123, Lewis, WA

Built 1949 Load: 17.2 t ADT: 1,729

SR 507

Fair

Over: MUCK CREEK OVERFLOW

7.4 N JCT SR 702, Pierce, WA

Built 1920 Load: 17.2 t ADT: 10,772

SR 160

Fair

Over: PUGET SOUND @ PT VASHON

N END VASHON ISLAND, King, WA

Built 1957 Load: 17.2 t ADT: 7,310

W-S RAMP

Fair

Over: I-5 MAINLINE AND RAMPS

5.5 N JCT SR 900, King, WA

Built 1967 Load: 17.2 t ADT: 6,684

Showing 451-500 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.