State profile · Below national median SD

Washington bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Washington — drawn straight from the FHWA National Bridge Inventory.

8,808
Public bridges
42.4%
Good condition
4.8%
Poor condition
4.8%
Structurally deficient

Total Bridges

8,808

Public highway bridges in Washington

Good Condition

42.4%

3,734 bridges rated 7-9

-7.6pp vs 50% benchmark

Poor Condition

4.8%

424 bridges rated 0-4

Structurally Deficient

4.8%

424 bridges flagged for repair priority

-2.2pp vs national avg 7.0%

Washington vs national bridge condition

Washington — Good condition share 42.4%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Washington — Structurally deficient share 16.0%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Washington vs nearby ranks

Adjacent states on the structurally deficient leaderboard (lower share = better)

States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Washington on the same metric.

06

California

4.60% top marginal rate
Structure
Progressive
Burden @ $100K
$27,040

05

Arkansas

4.71% top marginal rate
Structure
Progressive
Burden @ $100K
$5,544
Selected

53

Washington

4.81% top marginal rate
Structure
Progressive
Burden @ $100K
$8,808

18

Indiana

4.94% top marginal rate
Structure
Progressive
Burden @ $100K
$18,630

20

Kansas

5.25% top marginal rate
Structure
Progressive
Burden @ $100K
$23,867

Bridges Needing Most Attention in Washington

Six lowest-condition bridges in Washington, ranked by composite NBI rating. Each is inspected at least every 24 months.

All Bridges in Washington

JONES RD

Fair

Over: SUMAS RIVER

00.1 W CONCHMAN RD., Whatcom, WA

Built 1917 Load: 16.5 t ADT: 220

OLD STATE HWY/3150

Fair

Over: IMBLER CREEK

0.12 MI SE SR 23, Whitman, WA

Built 1946 Load: 16.5 t ADT: 40

LAT C RD.

Fair

Over: USIS MAIN CANAL

00.06 S LATERAL '1', Yakima, WA

Built 1941 Load: 16.5 t ADT: 170

SCOON ROAD

Fair

Over: SVID CANAL

00.35 S ARROWSMITH, Yakima, WA

Built 1962 Load: 16.5 t ADT: 2,190

LATERAL A RD.

Fair

Over: DRAIN

00.49 S BRANCH ROAD, Yakima, WA

Built 1939 Load: 16.5 t ADT: 1,805

SR 225

Fair

Over: YAKIMA RIVER

JCT SR 224, Benton, WA

Built 1957 Load: 16.8 t ADT: 10,570

NE 167TH AVE

Fair

Over: MORGAN CREEK

0.8 S NE199 ST, Clark, WA

Built 1954 Load: 16.8 t ADT: 1,014

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

I-5

Fair

Over: KLICKITAT DR

5.0 N JCT SR 516, King, WA

Built 1965 Load: 16.8 t ADT: 112,452

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

DAM ACCESS ROAD

Fair

Over: WEYERHAEUSER CO HAUL RD

MUD MOUNTAIN DAM, WA, King, WA

Built 1960 Load: 16.8 t ADT: 75

SR 6

Fair

Over: CHEHALIS R

3.4 E PACIFIC CO, Lewis, WA

Built 1931 Load: 16.8 t ADT: 1,801

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

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

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

SR 14

Fair

Over: CASCADE DRIVE

16.1 E CLARK CO, Skamania, WA

Built 1978 Load: 16.8 t ADT: 4,851

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

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

ESCURE RANCH

Fair

Over: ROCK CREEK

7.5 miles S of Lamont on, Whitman, WA

Built 1950 Load: 16.8 t ADT: 1

ARLT RD

Fair

Over: INTERMITTENT STREAM

00.15 MI W WELLSANDT RD., Adams, WA

Built 1900 Load: 17.2 t ADT: 17

MINA SMITH ROAD

Fair

Over: COLBY CREEK

00.70 NJCT CRN11200, Clallam, WA

Built 1980 Load: 17.2 t ADT: 247

NE HANTWICK RD

Fair

Over: E FORK LEWIS RIVER

0.1S LUCIA FALLS RD, Clark, WA

Built 1937 Load: 17.2 t ADT: 167

ROSE VALLEY RD

Fair

Over: GOBLE CREEK

5.65 E OLD 99 S (MP 1.06), Cowlitz, WA

Built 1958 Load: 17.2 t ADT: 750

COUNTY ARTERIAL

Fair

Over: POTHOLES EAST CANAL

0.63W JCT R 901, Franklin, WA

Built 1958 Load: 17.2 t ADT: 245

COUNTY ARTERIAL

Fair

Over: W B 3 B

1.47 S JCT SR 24, Franklin, WA

Built 1958 Load: 17.2 t ADT: 2,810

COUNTY ROAD

Fair

Over: POTHOLES EAST CANAL

2.67 W GLADE N 901, Franklin, WA

Built 1958 Load: 17.2 t ADT: 165

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

ALBATROSS STREET

Fair

Over: DUCK LAKE

0.1 E DOLPHIN, Grays Harbor, WA

Built 1970 Load: 17.2 t ADT: 2,143

SR 160

Fair

Over: PUGET SOUND @ PT VASHON

N END VASHON ISLAND, King, WA

Built 1957 Load: 17.2 t ADT: 7,310

I-90

Fair

Over: GARCIA INTERCHANGE

6.5 E JCT SR 202, King, WA

Built 1976 Load: 17.2 t ADT: 18,182

68th Ave NE

Fair

Over: SAMMAMISH RIVER

0.5 MI S OF SR 522, King, WA

Built 1970 Load: 17.2 t ADT: 24,000

FISH HATCHERY RD

Fair

Over: TOKUL CREEK

0.8 MI S OF SR-202, King, WA

Built 1950 Load: 17.2 t ADT: 120

FAUNTLEROY WAY

Fair

Over: ADMIRAL WAY, AVALON WAY

FAUNTLEROY WAY & 35TH AVE, King, WA

Built 1963 Load: 17.2 t ADT: 55,000

W EMERSON PL

Fair

Over: RAILROAD

W EMERSON PL & GILMAN AVE, King, WA

Built 1986 Load: 17.2 t ADT: 21,000

BLACK NUGGET RD

Fair

Over: N FORK ISSAQUAH CREEK

0.2 MI E OF HIGHLAND DR, King, WA

Built 1992 Load: 17.2 t ADT: 400

BALLFIELD ROAD

Fair

Over: TIBBETS CREEK

0.1 MI E OF SR-900, King, WA

Built 1975 Load: 17.2 t ADT: 20

I-90

Fair

Over: CANYON RD & BNSF RR

3.3 E JCT US 97, Kittitas, WA

Built 1968 Load: 17.2 t ADT: 15,014

I-82

Fair

Over: LMUMA CREEK

11.7 E JCT SR 821, Kittitas, WA

Built 1970 Load: 17.2 t ADT: 9,724

US 12

Fair

Over: GULCH

6.2 E JCT SR 123, Lewis, WA

Built 1949 Load: 17.2 t ADT: 1,729

RUSH ROAD

Fair

Over: NEWAUKUM RIVER

0.10 N JCT 40028, Lewis, WA

Built 1953 Load: 17.2 t ADT: 5,801

HENDRICKSON ROAD

Fair

Over: STILLWATER CREEK

2.0 W VADER, Lewis, WA

Built 1927 Load: 17.2 t ADT: 78

HOLOCOMB ROAD

Fair

Over: Stearns Creek

2.3 West Napavine, Lewis, WA

Built 1940 Load: 17.2 t ADT: 163

STEVENS CANYON ROA

Fair

Over: RAVINE

12.6 MILES WEST OF JCT. U, Lewis, WA

Built 1955 Load: 17.2 t ADT: 1,500

Arcadia Rd.

Fair

Over: MILL CREEK

4.72 E JCT SR 3, Mason, WA

Built 1971 Load: 17.2 t ADT: 879

SR 20

Fair

Over: METHOW RIVER

22.1 E CHELAN CO, Okanogan, WA

Built 1984 Load: 17.2 t ADT: 1,584

NORTH RIVER ROAD

Fair

Over: NORTH RIVER

00.0 PACIFIC CO LIN, Pacific, WA

Built 1959 Load: 17.2 t ADT: 204

SR 162

Fair

Over: PUYALLUP RIVER

0.5 E JCT SR 410, Pierce, WA

Built 1973 Load: 17.2 t ADT: 20,071

Showing 1,751-1,800 of 8,808 bridges

Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.

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). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.