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

KITTITAS hWY.

Good

Over: TOWN DITCH

.31 WEST FERGUSON RD, Kittitas, WA

Built 2015 Load: 43.4 t ADT: 1,876

NE SPRING BLVD

Good

Over: SOUND TRANSIT LIGHT RAIL

0.2 MI W OF SR-405, King, WA

Built 2017 Load: 43.4 t ADT: 2,206

Fort Road

Good

Over: Mud Lake Drain Canal

00.28 E Brownstown Rd, Yakima, WA

Built 2019 Load: 43.4 t ADT: 2,590

S 224TH STREET

Good

Over: SR 167 88TH AVE S

0.15 MI E OF 84TH AVE S, King, WA

Built 2019 Load: 43.4 t ADT: 2,200

SR 155

Good

Over: LOWER LEWIS CR

8.8 N JCT US 2, Grant, WA

Built 1949 Load: 43.5 t ADT: 959

SR 303

Good

Over: CALLAHAN DRIVE

1.4 N JCT SR 304, Kitsap, WA

Built 1958 Load: 43.5 t ADT: 39,443

I-5

Good

Over: S 272ND ST

4.8 N JCT SR 18, King, WA

Built 1961 Load: 43.5 t ADT: 89,080

US 12

Good

Over: STEMBER CR

27.8 E JCT SR 127, Garfield, WA

Built 1964 Load: 43.5 t ADT: 2,665

Q RD

Good

Over: I-90

5.4 E JCT SR 17, Grant, WA

Built 1965 Load: 43.5 t ADT: 651

US 12 WB ON-RAMP

Good

Over: PP&L CANAL

14.4 E JCT SR 410, Yakima, WA

Built 1959 Load: 43.5 t ADT: 3,784

SR 507

Good

Over: SKOOKUMCHUCK RIVER

0.7 N LEWIS CO, Thurston, WA

Built 1971 Load: 43.5 t ADT: 2,823

5TH AVE

Good

Over: SR 104 WB

1.0 E JCT SR 524, Snohomish, WA

Built 1971 Load: 43.5 t ADT: 8,999

SR 520

Good

Over: NORTHUP WAY

0.3 E JCT I-405, King, WA

Built 1971 Load: 43.5 t ADT: 43,146

COLLINS DRIVE

Good

Over: US 97

9.6 N JCT SR 14, Klickitat, WA

Built 1972 Load: 43.5 t ADT: 223

US 12

Good

Over: SR 125

0.6 E JCT SR 125 SPUR, Walla Walla, WA

Built 1972 Load: 43.5 t ADT: 12,109

I-5

Good

Over: TRANSMT. OIL PIPELINE

5.0 N JCT SR 539, Whatcom, WA

Built 1972 Load: 43.5 t ADT: 23,900

SR 3

Good

Over: SR 310/KITSAP WAY

3.5 N JCT SR 304, Kitsap, WA

Built 1974 Load: 43.5 t ADT: 23,120

PARK RD

Good

Over: I-5

3.0 N JCT SR 505, Lewis, WA

Built 1977 Load: 43.5 t ADT: 100

88TH ST SE

Good

Over: US 2

3.3 E JCT SR 9, Snohomish, WA

Built 1983 Load: 43.5 t ADT: 8,656

US 395

Good

Over: BIG BOULDER CREEK

15.7 N JCT SR 20, Ferry, WA

Built 1984 Load: 43.5 t ADT: 712

US 101

Good

Over: WEST FORK HOQUIAM RIVER

11.6 N JCT SR 109, Grays Harbor, WA

Built 1985 Load: 43.5 t ADT: 2,126

SR 508

Good

Over: I-5

JCT I-5, Lewis, WA

Built 1986 Load: 43.5 t ADT: 4,189

W YAKITAT RD NW

Good

Over: I-82

11.3 E JCT SR 22, Benton, WA

Built 1987 Load: 43.5 t ADT: 282

SR 20

Good

Over: SKY CREEK

17.8 E JCT SR 530, Skagit, WA

Built 1989 Load: 43.5 t ADT: 1,971

PARK ROAD

Good

Over: I-90

5.4 E JCT US 2, Spokane, WA

Built 2000 Load: 43.5 t ADT: 6,503

N-E RAMP

Good

Over: SE 8TH ST

1.7 N JCT I-90, King, WA

Built 2003 Load: 43.5 t ADT: 6,742

HOV ON/OFF RAMP

Good

Over: I-90

1.2 E JCT I-405, King, WA

Built 2006 Load: 43.5 t ADT: 583

SR 502

Good

Over: I-5 & GEE CREEK

JCT I-5, Clark, WA

Built 2008 Load: 43.5 t ADT: 10,805

SPARKS ROAD WEST

Good

Over: KACHESS RIVER

00.85 W SPARKS ROAD, Kittitas, WA

Built 1974 Load: 43.5 t ADT: 353

GRANGE RD-GRAYLAND

Good

Over: DRAINAGE DITCH

0.1 E JCT SR 105, Grays Harbor, WA

Built 1978 Load: 43.5 t ADT: 73

SR 529

Good

Over: BNRR

3.6 N JCT SR 529 SPUR, Snohomish, WA

Built 1993 Load: 43.5 t ADT: 5,671

HERRON RD NW

Good

Over: VON GELDERN COVE INLET

.1 SW JCT SR302, Pierce, WA

Built 1996 Load: 43.5 t ADT: 1,725

SILVERBROOK ROAD

Good

Over: Silver Creek

1.0 East Randle, Lewis, WA

Built 2006 Load: 43.5 t ADT: 462

MIDDLE SATSOP ROAD

Good

Over: BUDD CREEK

2.2 N JCU 9710, Grays Harbor, WA

Built 2008 Load: 43.5 t ADT: 1,740

Westside Calispel

Good

Over: Winchester Creek

6.0 M West of SR 20, Pend Oreille, WA

Built 2005 Load: 43.5 t ADT: 72

GODFREY

Good

Over: KLICKITAT CREEK

South of Mossyrock Rd E., Lewis, WA

Built 2014 Load: 43.5 t ADT: 77

James Page Road

Good

Over: Bagley Creek

0.4m west of S Siebert Cr, Clallam, WA

Built 2021 Load: 43.5 t ADT: 95

ROAD

Good

Over: HANSEN CREEK

2.8 MI E OF I-90/55 JCT, King, WA

Built 1994 Load: 43.6 t ADT: 25

ROAD

Good

Over: JOHNSON CREEK

5.8 MI N OF HWY 2/65 JCT, King, WA

Built 1991 Load: 43.6 t ADT: 46

ROAD

Good

Over: GREENWATER RIVER

0.1 MI N OF 70/7010 JCT, King, WA

Built 1979 Load: 43.6 t ADT: 48

MAINTENANCE ROAD

Good

Over: WEST CANAL

WEST CANAL LATERAL W26C, Grant, WA

Built 1951 Load: 43.7 t ADT: 5

SR 27

Good

Over: FOUR MILE CREEK

8.7 N JCT SR 270, Whitman, WA

Built 1990 Load: 43.7 t ADT: 2,811

US 2

Good

Over: CHIWAUKUM CREEK

5.1 E JCT SR 207, Chelan, WA

Built 2012 Load: 43.7 t ADT: 4,692

SR 20

Good

Over: PUGET SND @ PT TOWNSEND

12.0 E JCT US 101, Jefferson, WA

Built 2013 Load: 43.7 t ADT: 1,800

SR 7

Good

Over: MUCK CREEK

5.0 N JCT SR 702, Pierce, WA

Built 2014 Load: 43.7 t ADT: 9,722

SR 162

Good

Over: PUYALLUP RIVER

4.4 E JCT SR 410, Pierce, WA

Built 2015 Load: 43.7 t ADT: 20,315

SR 525

Good

Over: POSSESSION SOUND

1.9 N JCT SR 526, Snohomish, WA

Built 2020 Load: 43.7 t ADT: 13,078

RICE LAKE ROAD

Good

Over: LELAND CREEK

0.33 E. JCT. SR101, Jefferson, WA

Built 1987 Load: 43.7 t ADT: 50

NORTHLAKE WAY NW

Good

Over: CHICO CREEK

0.2 S JCT SEABECK HWY NW, Kitsap, WA

Built 1997 Load: 43.7 t ADT: 5,557

NW ERLAND POINT RD

Good

Over: CHICO CREEK

0.1 E JCT CHICO WAY NW, Kitsap, WA

Built 1997 Load: 43.7 t ADT: 5,575

Showing 6,751-6,800 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.