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

IRR BIA RTE 1123

Fair

Over: SITDOWN CREEK

26.9 KM NW OF SUB-AGENCY, Ferry, WA

Built 1993 Load: 32.8 t ADT: 50

E. PIONEER WAY

Fair

Over: DRAINAGE BASIN

EAST OF OAK HARBOR, Island, WA

Built 2006 Load: 32.9 t ADT: 30

US 101

Fair

Over: BERNARD CR

4.4 N JCT SR 109, Grays Harbor, WA

Built 1957 Load: 33.0 t ADT: 4,908

I-5

Fair

Over: SAMISH RIVER PVT RD

2.9 N JCT SR 11, Skagit, WA

Built 1963 Load: 33.0 t ADT: 26,524

LAUER RD

Fair

Over: DRY WASH

01.44 MI N TOKIO RD, Adams, WA

Built 1933 Load: 33.0 t ADT: 38

DUNKLE ROAD

Fair

Over: NORTH FORK ROCK CREEK

02.0 E ROCKFORD, Spokane, WA

Built 1986 Load: 33.0 t ADT: 29

MOE RIDGE ROAD

Fair

Over: MAD RIVER

544 SO. OF MAD RIVER RD., Chelan, WA

Built 2001 Load: 33.0 t ADT: 65

I-90

Fair

Over: COAL CREEK

0.5 E JCT SR 906, Kittitas, WA

Built 1928 Load: 33.4 t ADT: 17,475

I-5

Fair

Over: I-205 SB

5.3 N JCT SR 500, Clark, WA

Built 1959 Load: 33.4 t ADT: 26,922

I-5

Fair

Over: I-205 SB

5.3 N JCT SR 500, Clark, WA

Built 1959 Load: 33.4 t ADT: 26,922

SR 520 RAMP

Fair

Over: PORTAGE BAY

0.8 E JCT I-5, King, WA

Built 1963 Load: 33.4 t ADT: 11,169

I-90

Fair

Over: REESER CREEK

1.4 E JCT US 97, Kittitas, WA

Built 1967 Load: 33.4 t ADT: 15,014

I-90

Fair

Over: REESER CREEK

1.4 E JCT US 97, Kittitas, WA

Built 1967 Load: 33.4 t ADT: 15,014

I-5

Fair

Over: NISQUALLY OVERFLOW-SOUTH

2.7 N JCT SR 510, Thurston, WA

Built 1982 Load: 33.4 t ADT: 48,169

CASE ROAD

Fair

Over: ROZA CANAL

0.60 N HANKS RD, Benton, WA

Built 1973 Load: 33.4 t ADT: 599

Monse Bridge Rd

Fair

Over: OKANOGAN RIVER

.NWSES34T31NR25E, Okanogan, WA

Built 1967 Load: 33.4 t ADT: 479

LIND AVE SW

Fair

Over: P9 CHANNEL/PANTHER CREEK

0.6 MI S OF I-405, King, WA

Built 1981 Load: 33.4 t ADT: 8,345

SULLIVAN ROAD (SB)

Fair

Over: SPOKANE RIVER

0.25 N 1-90, Spokane, WA

Built 2016 Load: 33.4 t ADT: 28,100

I-5

Fair

Over: NISQUALLY RIVER

2.9 N JCT SR 510, Thurston, WA

Built 1937 Load: 33.6 t ADT: 61,580

SR 27

Fair

Over: PALOUSE RIVER

14.8 N JCT SR 270, Whitman, WA

Built 1938 Load: 33.6 t ADT: 3,092

US 395

Fair

Over: SR 240 / W COLUMBIA DR

JCT SR 240, Benton, WA

Built 1954 Load: 33.6 t ADT: 37,382

CABIN CR RD

Fair

Over: I-90

9.3 E JCT SR 906, Kittitas, WA

Built 1958 Load: 33.6 t ADT: 210

SR 18

Fair

Over: KENT-BLACK DIAMOND RD SE

6.2 E JCT SR 164, King, WA

Built 1959 Load: 33.6 t ADT: 25,223

S 375TH ST

Fair

Over: I-5

0.7 N PIERCE CO, King, WA

Built 1959 Load: 33.6 t ADT: 516

SR 161

Fair

Over: I-5

1.7 N PIERCE CO, King, WA

Built 1959 Load: 33.6 t ADT: 31,065

S 320TH ST

Fair

Over: I-5

1.8 N JCT SR 18, King, WA

Built 1960 Load: 33.6 t ADT: 49,879

I-5 REV EXP LANES

Fair

Over: RAVENNA BLVD

5.8 N JCT I-90, King, WA

Built 1961 Load: 33.6 t ADT: 34,322

I-5

Fair

Over: S 288TH ST

3.8 N JCT SR 18, King, WA

Built 1961 Load: 33.6 t ADT: 94,670

SR 20

Fair

Over: HALF BR STA 155

5.9 E SKAGIT CO, Whatcom, WA

Built 1900 Load: 33.6 t ADT: 1,732

I-5

Fair

Over: SR 524 SPUR/44TH AVE W

3.0 N JCT SR 104, Snohomish, WA

Built 1963 Load: 33.6 t ADT: 81,547

N-85TH RAMP

Fair

Over: I-5

0.7 N JCT SR 522, King, WA

Built 1964 Load: 33.6 t ADT: 13,701

I-5 SBCD

Fair

Over: KING JACKSON ST

0.3 N JCT I-90, King, WA

Built 1965 Load: 33.6 t ADT: 66,222

I-405

Fair

Over: COAL CREEK PARKWAY SE

4.8 N JCT SR 900, King, WA

Built 1965 Load: 33.6 t ADT: 69,706

I-5

Fair

Over: SR 529 - PACIFIC AVE

4.3 N JCT SR 527, Snohomish, WA

Built 1966 Load: 33.6 t ADT: 84,122

WELLSANDT RD

Fair

Over: I-90

13.2 E JCT SR 261, Adams, WA

Built 1967 Load: 33.6 t ADT: 14

CLOVERDALE ST

Fair

Over: SR 509

4.0 N JCT SR 518, King, WA

Built 1968 Load: 33.6 t ADT: 14,039

SR 27

Fair

Over: LITTLE HANGMAN CREEK

11.6 N JCT SR 271, Whitman, WA

Built 1968 Load: 33.6 t ADT: 1,440

SR 520

Fair

Over: 116TH AVE NE

0.1 E JCT I-405, King, WA

Built 1966 Load: 33.6 t ADT: 43,146

COLUMBIA CTR BLVD

Fair

Over: SR 240

2.8 E JCT I-182, Benton, WA

Built 1970 Load: 33.6 t ADT: 10,770

I-405

Fair

Over: BN RR (ABANDONED)

1.3 N JCT I-90, King, WA

Built 1972 Load: 33.6 t ADT: 95,581

I-90 RAMP

Fair

Over: W LAKE SAMMAMISH PKWY

3.7 E JCT I-405, King, WA

Built 1972 Load: 33.6 t ADT: 2,956

SLATER RD

Fair

Over: I-5

3.9 N JCT SR 539, Whatcom, WA

Built 1972 Load: 33.6 t ADT: 11,783

I-90

Fair

Over: E FK ISSAQUAH CR

2.7 E JCT SR 900, King, WA

Built 1976 Load: 33.6 t ADT: 33,574

SR 203

Fair

Over: TOLT RIVER

5.3 N JCT SR 202, King, WA

Built 1977 Load: 33.6 t ADT: 10,640

33RD ST

Fair

Over: I-5

1.6 N JCT SR 14, Clark, WA

Built 1980 Load: 33.6 t ADT: 5,865

I-82

Fair

Over: WINE COUNTRY RD RR PED

3.8 E JCT SR 241, Yakima, WA

Built 1979 Load: 33.6 t ADT: 13,793

I-82

Fair

Over: MELLIS ROAD

4.7 E JCT US 97, Yakima, WA

Built 1980 Load: 33.6 t ADT: 14,023

I-82

Fair

Over: MELLIS ROAD

4.7 E JCT US 97, Yakima, WA

Built 1981 Load: 33.6 t ADT: 14,023

SHERMAN HILL RD

Fair

Over: SR 3

1.7 N JCT SR 308, Kitsap, WA

Built 1981 Load: 33.6 t ADT: 545

SR 125

Fair

Over: YELLOWHAWK CREEK

1.5 N OREGON, Walla Walla, WA

Built 1988 Load: 33.6 t ADT: 16,295

Showing 2,601-2,650 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.