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

WOODINVILLE DUVALL

Fair

Over: TUCK CREEK

0.9 MI W OF SR-203, King, WA

Built 1948 Load: 44.7 t ADT: 10,564

PACIFIC HIGHWAY

Fair

Over: DUWAMISH RIVER

0.1 MI N JCT SR599 & SR99, King, WA

Built 2000 Load: 44.7 t ADT: 22,406

LAKEMONT BLVD

Fair

Over: HILL SIDE

0.1 MI S OF JCT I-90, King, WA

Built 1998 Load: 44.7 t ADT: 16,261

SOUTH SHORE BRIDGE

Fair

Over: SOUTH SHORE ACCESS

LOWER GRANITE DAM, Garfield, WA

Built 1973 Load: 45.0 t ADT: 150

I-5

Fair

Over: SR 507 MELLEN ST

3.7 N JCT SR 6, Lewis, WA

Built 1951 Load: 45.4 t ADT: 65,245

SR 9

Fair

Over: SLOUGH

9.2 N SKAGIT CO, Whatcom, WA

Built 1952 Load: 45.4 t ADT: 3,307

SR 99

Fair

Over: CLOVERDALE ST

2.5 N JCT SR 599, King, WA

Built 1959 Load: 45.4 t ADT: 27,446

SR 213

Fair

Over: OKANOGAN RIVER

0.2 N JCT US 97, Okanogan, WA

Built 1962 Load: 45.4 t ADT: 678

SR 124

Fair

Over: ABANDONED RAILROAD

22.7 E JCT US 12, Walla Walla, WA

Built 1966 Load: 45.4 t ADT: 1,579

I-405

Fair

Over: 228TH ST

1.3 N KING CO, Snohomish, WA

Built 1968 Load: 45.4 t ADT: 45,734

WEYERHAEUSER WAY S

Fair

Over: SR 18

0.7 E JCT I-5, King, WA

Built 1970 Load: 45.4 t ADT: 12,865

US 97

Fair

Over: SWAUK CR

12.9 N JCT SR 10, Kittitas, WA

Built 1974 Load: 45.4 t ADT: 2,602

I-205

Fair

Over: E-N RAMP

0.5 N OREGON, Clark, WA

Built 1976 Load: 45.4 t ADT: 101,286

SR 6 RAMP TO SB I5

Fair

Over: DILLENBAUGH CR

6.3 E JCT SR 603, Lewis, WA

Built 1976 Load: 45.4 t ADT: 3,450

I-82

Fair

Over: WINE COUNTRY RD RR PED

3.8 E JCT SR 241, Yakima, WA

Built 1979 Load: 45.4 t ADT: 13,793

SR 520

Fair

Over: PEAT BOG

0.2 E JCT I-405, King, WA

Built 1993 Load: 45.4 t ADT: 32,129

US 2

Fair

Over: SNOHOMISH R HIGHLAND AVE

0.2 E JCT I-5, Snohomish, WA

Built 2001 Load: 45.4 t ADT: 39,701

128TH AVE SW

Fair

Over: BLACK RIVER

.23 W OF LITTLEROCK RD, Thurston, WA

Built 1968 Load: 45.4 t ADT: 3,047

304 ST E

Fair

Over: SOUTH CREEK TRIBUTARY

1.5 E JCT SR 7, Pierce, WA

Built 1955 Load: 45.4 t ADT: 5,600

MILL CREEK RD

Fair

Over: MILL CREEK

1.66 N SR 4 (MP 47.64), Cowlitz, WA

Built 1960 Load: 45.4 t ADT: 145

HAMPTON RD

Fair

Over: INTERMITTENT STREAM

00.17 MI E SR21, Adams, WA

Built 1952 Load: 45.4 t ADT: 8

QUINAULT S SHORE

Fair

Over: FALLS CREEK

2.3 NE JCT US 101, Grays Harbor, WA

Built 1973 Load: 45.4 t ADT: 962

BAKER ROAD

Fair

Over: VEACH CREEK

2.9 SW PACKWOOD, Lewis, WA

Built 1936 Load: 45.4 t ADT: 18

COUNTY ROAD 1131

Fair

Over: WOLF CREEK

3.2 W.SR20 @ WNTHP, Okanogan, WA

Built 1963 Load: 45.4 t ADT: 2,423

183RD SW

Fair

Over: SCATTER CREEK

0.5 m W of Sargent Rd Int, Thurston, WA

Built 1949 Load: 45.4 t ADT: 2,813

JORGENSEN RD.

Fair

Over: S.FORK NEWAUKUM RIVER

0.44 SE JCT SR 508, Lewis, WA

Built 1996 Load: 45.4 t ADT: 798

MYRA RD

Fair

Over: MILL CREEK

0.22 MI N ROSE ST, Walla Walla, WA

Built 2008 Load: 45.4 t ADT: 13,345

NEWHALEM CAMPGROUN

Fair

Over: SKAGIT RIVER

100 feet South of Highway, Whatcom, WA

Built 1958 Load: 45.4 t ADT: 200

ESTEB ROAD

Fair

Over: LITTLE KLICKITAT RIVER

1.1 S JCT SR 142, Klickitat, WA

Built 1965 Load: 45.7 t ADT: 27

COUNTY ROAD 1750

Fair

Over: SO FORK ASOTIN CREEK

3.3 MI SO JCT RD. 1100, Asotin, WA

Built 1957 Load: 45.7 t ADT: 1

WASHOUGAL RIVER RD

Fair

Over: BURLINGTON NORTHERN RY

0.2 E JCT SR 14, Clark, WA

Built 1965 Load: 46.0 t ADT: 8,727

SEABECK HIGHWAY

Fair

Over: BIG BEEF CREEK

.5 W JCT ANDERSON HILL RD, Kitsap, WA

Built 1974 Load: 46.0 t ADT: 6,604

FOSTER ROAD

Fair

Over: ELOCHOMAN RIVER

0.5 W JCT SR 409, Wahkiakum, WA

Built 1977 Load: 46.0 t ADT: 174

Sullivan Lake Rd

Fair

Over: Outlet Creek

1/4 m s/o Ranger Station, Pend Oreille, WA

Built 1995 Load: 46.0 t ADT: 450

US 101

Fair

Over: HUMPTULIPS OVERFLOW

21.3 N JCT SR 109, Grays Harbor, WA

Built 1950 Load: 46.3 t ADT: 2,251

I-5

Fair

Over: WHATCOM CREEK

2.9 N JCT SR 11, Whatcom, WA

Built 1957 Load: 46.3 t ADT: 30,905

NE 70TH-NE 71ST ST

Fair

Over: I-5

2.6 N JCT SR 520, King, WA

Built 1962 Load: 46.3 t ADT: 8,682

GARDEN SPRING RD

Fair

Over: I-90

0.5 E JCT US 2, Spokane, WA

Built 1963 Load: 46.3 t ADT: 966

INTERURBAN AVE S

Fair

Over: GREEN RIVER

0.1 N JCT I-405, King, WA

Built 1963 Load: 46.3 t ADT: 32,860

US 12

Fair

Over: US 12

JCT SR 8, Grays Harbor, WA

Built 1963 Load: 46.3 t ADT: 8,371

US 12

Fair

Over: US 12

JCT SR 8, Grays Harbor, WA

Built 1963 Load: 46.3 t ADT: 8,371

NE 80TH ST

Fair

Over: I-5 I-5 EXP LNS RAMPS

0.4 N JCT SR 522, King, WA

Built 1964 Load: 46.3 t ADT: 31,375

US 12

Fair

Over: NP RY

10.0 E JCT SR 107, Grays Harbor, WA

Built 1964 Load: 46.3 t ADT: 12,029

I-5 RAMP

Fair

Over: AIRPORT WAY S

5.9 N JCT SR 900, King, WA

Built 1967 Load: 46.3 t ADT: 3,824

PORTLAND AVE

Fair

Over: SR 512

1.5 E JCT SR 7, Pierce, WA

Built 1965 Load: 46.3 t ADT: 15,135

I-182

Fair

Over: N 20TH AVE

6.8 E BENTON CO, Franklin, WA

Built 1968 Load: 46.3 t ADT: 19,145

NE 124TH ST

Fair

Over: I-405

5.5 N JCT SR 520, King, WA

Built 1969 Load: 46.3 t ADT: 39,499

SR 167

Fair

Over: WEST VALLEY HWY

0.5 N JCT SR 410, Pierce, WA

Built 1972 Load: 46.3 t ADT: 45,555

US 2

Fair

Over: W-W RAMP

15.3 E LINCOLN CO, Spokane, WA

Built 1972 Load: 46.3 t ADT: 14,901

SR 22 / WINE CNTRY

Fair

Over: I-82

0.7 E JCT SR 221, Benton, WA

Built 1978 Load: 46.3 t ADT: 7,451

Showing 3,401-3,450 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.