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 522

Good

Over: E-N RAMP BR

1.3 E JCT SR 527, King, WA

Built 1968 Load: 17.2 t ADT: 1,600

WIND RIVER ROAD

Good

Over: PARADISE CREEK

20.41 NW JCT SR14, Skamania, WA

Built 1950 Load: 17.2 t ADT: 321

ELK PRAIRIE ROAD

Good

Over: WILLAPA RIVER NORTH FORK

19.1 SE JCT US 101, Pacific, WA

Built 1964 Load: 17.2 t ADT: 65

OLD MILTON HWY

Good

Over: WALLA WALLA RIVER

01.28N STATELINE RD, Walla Walla, WA

Built 1975 Load: 17.2 t ADT: 1,795

MAPLE GROVE ROAD

Good

Over: SVID CANAL

00.18 S ARROWSMITH, Yakima, WA

Built 1962 Load: 17.2 t ADT: 715

COUNTY ROAD

Good

Over: WAHLUKE BRANCH CANAL

6.72 N JCT 460, Franklin, WA

Built 1974 Load: 17.2 t ADT: 369

Skokomish ValleyRd

Good

Over: VANCE CREEK

3.88 W JCT SR 101, Mason, WA

Built 1963 Load: 17.2 t ADT: 494

UPPER HOH ROAD

Good

Over: ALDER CREEK

2.1E JCT SR101, Jefferson, WA

Built 1972 Load: 17.2 t ADT: 950

TERRACE HTS DR

Good

Over: ROZA CANAL

00.07 S BITTNER RD, Yakima, WA

Built 1937 Load: 17.2 t ADT: 1,500

BIG ALKALI/7005

Good

Over: ALKALI FLAT CREEK

9.57 MI NE LITTLE GSE DAM, Whitman, WA

Built 1962 Load: 17.2 t ADT: 99

KENDELL STREET

Good

Over: JOHNSON CREEK

0.3 NE US97 @RIVSD, Okanogan, WA

Built 1976 Load: 17.2 t ADT: 521

COUNTY ROAD

Good

Over: POTHOLES EAST CANAL

0.42 N. ELM RD 960, Franklin, WA

Built 2005 Load: 17.2 t ADT: 112

CHEWUCK ROAD

Good

Over: EIGHTMILE CREEK

NO DATA ENTERED, Okanogan, WA

Built 1949 Load: 17.3 t ADT: 196

SR 508

Good

Over: CINEBAR CREEK

19.5 E JCT I-5, Lewis, WA

Built 1946 Load: 17.5 t ADT: 1,171

I-5

Good

Over: US 2 EB/HEWITT AVE

1.1 N JCT SR 529, Snohomish, WA

Built 1966 Load: 17.5 t ADT: 61,062

SR 507

Good

Over: WEYERHAEUSER RR VACATED

15.7 N LEWIS CO, Thurston, WA

Built 1971 Load: 17.5 t ADT: 5,063

I-90

Good

Over: SO FK SNOQUALMIE R

9.2 E JCT SR 202, King, WA

Built 1976 Load: 17.5 t ADT: 18,182

HEMLOCK ROAD

Good

Over: TROUT CREEK

1.32 SW JCT 92135, Skamania, WA

Built 1975 Load: 17.5 t ADT: 85

OLD MILTON HWY

Good

Over: YELLOWHAWK CREEK

00.6 W PEPPERS RD, Walla Walla, WA

Built 1990 Load: 17.5 t ADT: 2,750

DODSON RD

Good

Over: LAT W20F BLK 89

Dodson 0.7 South of 7 NW, Grant, WA

Built 1993 Load: 17.5 t ADT: 1,489

CUMMINS RD

Good

Over: TOUCHET RIVER

00.1 W OF TOUCHET N RD, Walla Walla, WA

Built 1995 Load: 17.5 t ADT: 142

STALEY ROAD

Good

Over: DRAGOON CREEK

0.5 E MONROE ROAD, Spokane, WA

Built 2000 Load: 17.5 t ADT: 1,241

CHEYNE RD.

Good

Over: SVID CANAL

0.42 S. OF HIGHLAND DR., Yakima, WA

Built 2001 Load: 17.5 t ADT: 1,522

VALLEY GROVE RD

Good

Over: DRY CREEK

1.30 W LOWER WAITSBURG RD, Walla Walla, WA

Built 2003 Load: 17.5 t ADT: 146

RIVER RD

Good

Over: FISH TRAP CREEK

01.2 SW FLYNN ROAD, Whatcom, WA

Built 2004 Load: 17.5 t ADT: 140

SR 14

Good

Over: HORSETHIEF CANYON

2.6 E JCT SR 197, Klickitat, WA

Built 1931 Load: 17.8 t ADT: 2,268

US 12

Good

Over: PACIFIC P L TAILRACE

7.5 E JCT SR 410, Yakima, WA

Built 1934 Load: 17.8 t ADT: 5,637

I-5

Good

Over: BNSF RR

5.0 N JCT SR 528, Snohomish, WA

Built 1970 Load: 17.8 t ADT: 54,758

I-5

Good

Over: BNSF RR

5.0 N JCT SR 528, Snohomish, WA

Built 1970 Load: 17.8 t ADT: 54,758

SO 146TH ST

Good

Over: SR 509

0.1 N JCT SR 518, King, WA

Built 1970 Load: 17.8 t ADT: 5,632

SR 527

Good

Over: NORTH CREEK

0.5 N JCT I-405, Snohomish, WA

Built 1988 Load: 17.8 t ADT: 41,017

72ND AVE SE

Good

Over: FIRST HILL LID

3.4 E JCT I-5, King, WA

Built 1992 Load: 17.8 t ADT: 2,472

S-S RAMP

Good

Over: BN RR

3.1 N THURSTON CO, Pierce, WA

Built 1997 Load: 17.8 t ADT: 4,379

POINT BROWN AVE

Good

Over: CANAL

0.1 N S RAZOR CLAM, Grays Harbor, WA

Built 2003 Load: 17.8 t ADT: 1,497

BEAUCHENE ROAD

Good

Over: MOXEE DRAIN

00.66 W BEAUDRY RD, Yakima, WA

Built 1971 Load: 17.8 t ADT: 230

NEWTON ROAD

Good

Over: COLVILLE RIVER

01.04 W JCT SR 231, Stevens, WA

Built 1974 Load: 17.8 t ADT: 50

TIETON RESERVOIR

Good

Over: CLEAR CREEK

01.82 SW SR 12 (WI), Yakima, WA

Built 1955 Load: 17.8 t ADT: 550

BARKES RD.

Good

Over: USIS CANAL

00.14 S W WAPATO RD, Yakima, WA

Built 1961 Load: 17.8 t ADT: 401

Shelton Matlock Rd

Good

Over: GOLDSBOROUGH CREEK

4.85 W JCT SR 3, Mason, WA

Built 1956 Load: 17.8 t ADT: 2,079

COWICHE CANYON LN.

Good

Over: COWICHE CREEK

00.03 N COWICHE CAN, Yakima, WA

Built 1977 Load: 17.8 t ADT: 75

IRR PIONEER PARKWA

Good

Over: SWINOMISH SLOUGH

0.95 JCT MORRIS ON MAPLE, Skagit, WA

Built 1957 Load: 17.8 t ADT: 3,101

O-SW

Good

Over: WEST LOW CANAL

O SW .06 N of Frenchmen, Grant, WA

Built 1997 Load: 17.8 t ADT: 155

Calicoma Rd

Good

Over: South Fork Tacoma Creek

0.1 M N of WS Calispel, Pend Oreille, WA

Built 2004 Load: 17.8 t ADT: 100

REST HAVEN ROAD

Good

Over: WASTEWAY NO. 2

ROZA ID POWERPLANT YAKIM, Yakima, WA

Built 1937 Load: 18.0 t ADT: 10

SR 125

Good

Over: SPRING VALLEY BRANCH

9.4 N JCT SR 125 SPUR, Walla Walla, WA

Built 1921 Load: 18.1 t ADT: 415

GARRISON RD

Good

Over: JOHNSON CR

2.6 N JCT SR 546, Whatcom, WA

Built 1945 Load: 18.1 t ADT: 624

SR 202

Good

Over: SAMMAMISH R

2.5 E JCT SR 522, King, WA

Built 1955 Load: 18.1 t ADT: 8,751

US 2

Good

Over: LITTLE SPOKANE RIVER

7.9 E JCT SR 206, Spokane, WA

Built 1957 Load: 18.1 t ADT: 7,206

MILITARY RD

Good

Over: SR 18

1.0 E JCT I-5, King, WA

Built 1958 Load: 18.1 t ADT: 12,502

SR 11

Good

Over: HILLSIDE

13.3 N JCT I-5, Skagit, WA

Built 1920 Load: 18.1 t ADT: 2,412

Showing 4,001-4,050 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.