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%.

Condition Distribution

Bridge inventory deck-condition mix — Washington (FHWA NBI)

Washington42.39327883742053%37.76112624886467%GoodFairPoorStructurally Deficient
Bridge inventory deck-condition mix — Washington (FHWA NBI)

Counties (39)

Adams 190 Asotin 29 Benton 173 Chelan 154 Clallam 152 Clark 228 Columbia 86 Cowlitz 167 Douglas 40 Ferry 54 Franklin 138 Garfield 54 Grant 314 Grays Harbor 365 Island 8 Jefferson 100 King 1364 Kitsap 119 Kittitas 311 Klickitat 91 Lewis 422 Lincoln 181 Mason 139 Okanogan 163 Pacific 120 Pend Oreille 72 Pierce 502 San Juan 13 Skagit 256 Skamania 120 Snohomish 516 Spokane 360 Stevens 81 Thurston 216 Wahkiakum 36 Walla Walla 200 Whatcom 358 Whitman 351 Yakima 565

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.

SILVER CK RD 00670

Structurally Deficient

Over: NINE MILE CREEK

19.05 E SR 21, Ferry, WA

Built 1958 Load: 2.7 t ADT: 47

4TH ST

Poor

Over: MILL CREEK

4TH AND MILL CR, Walla Walla, WA

Built 1908 Load: 2.7 t ADT: 2,624

NO DATA ENTERED

Structurally Deficient

Over: WEST BRANCH LECLERC CREE

NO DATA ENTERED, Pend Oreille, WA

Built 1954 Load: 3.5 t ADT: 5

STEVENS RD. -IRRIG

Poor

Over: DRAIN

00.26 NO CHAMBERS, Yakima, WA

Built 1965 Load: 3.6 t ADT: 68

PEARL HILL RD

Poor

Over: JORDAN CREEK

1.44 E JCT HILAND ORCH RD, Douglas, WA

Built 1953 Load: 4.2 t ADT: 72

FARM ACCESS

Poor

Over: ROZA ID WASTEWAY NO 3

NR PARKER HEIGHTS, WA, Yakima, WA

Built 1955 Load: 4.4 t ADT: 10

All Bridges in Washington

I-90

Good

Over: COLEMAN CR

1.7 E JCT I-82, Kittitas, WA

Built 1970 Load: 89.8 t ADT: 17,603

I-90

Good

Over: COOKE CREEK

3.2 E JCT I-82, Kittitas, WA

Built 1970 Load: 89.8 t ADT: 17,603

I-82

Good

Over: COLEMAN CREEK

3.0 E JCT I-90, Kittitas, WA

Built 1969 Load: 89.8 t ADT: 18,975

SR 14

Good

Over: PINE CREEK

39.3 E JCT US 97, Klickitat, WA

Built 1958 Load: 89.8 t ADT: 1,204

SR 123

Good

Over: SUMMIT CRK

0.6 N JCT US 12, Lewis, WA

Built 1986 Load: 89.8 t ADT: 1,074

PATTEE ROAD

Good

Over: BERWICK CREEK

5 W CHEHALIS, Lewis, WA

Built 2007 Load: 89.8 t ADT: 52

US 2

Good

Over: COTTONWOOD CREEK

0.1 E JCT SR 25, Lincoln, WA

Built 1989 Load: 89.8 t ADT: 5,280

SR 106

Good

Over: ALDERBROOK PED PATH

7.0 E JCT US 101, Mason, WA

Built 2007 Load: 89.8 t ADT: 2,309

SatsopCloquallumRD

Good

Over: COMFORT CREEK

6.32 W of Cloquallum Rd, Mason, WA

Built 2000 Load: 89.8 t ADT: 132

SR 20

Good

Over: LITTLE BOULDER CREEK

18.8 E CHELAN CO, Okanogan, WA

Built 2005 Load: 89.8 t ADT: 1,372

SR 6

Good

Over: FORK CREEK

12.2 E JCT US 101, Pacific, WA

Built 1918 Load: 89.8 t ADT: 1,780

LeClerc North Rd

Good

Over: Mill Creek

13.3M N Of Kings Lk Rd, Pend Oreille, WA

Built 1998 Load: 89.8 t ADT: 663

I-5

Good

Over: I-5 DRAINAGE

3.8 N SNOHOMISH CO, Skagit, WA

Built 1970 Load: 89.8 t ADT: 70,523

SO SKAGIT HWY

Good

Over: PARKER CREEK

7.25 E JCT SR-9, Skagit, WA

Built 1996 Load: 89.8 t ADT: 1,437

LAKE CAVANAVGH RD

Good

Over: LAKE CREEK

1.1 SE JCT SR 9, Skagit, WA

Built 1998 Load: 89.8 t ADT: 604

Nookachamp Hills

Good

Over: Otter Pond Creek

0.75 E JCT SR 9, Skagit, WA

Built 2008 Load: 89.8 t ADT: 470

SR 522

Good

Over: FALES RD

4.5 E JCT SR 9, Snohomish, WA

Built 2006 Load: 89.8 t ADT: 31,683

SR 530

Good

Over: TRAFTON CREEK

3.5 E JCT SR 9, Snohomish, WA

Built 2020 Load: 89.8 t ADT: 7,922

PIONEER HIGHWAY

Good

Over: STILLAGUAMISH RIVER

2.0 W JCT I-5, Snohomish, WA

Built 1998 Load: 89.8 t ADT: 4,105

I-90

Good

Over: SPOKANE BRIDGE RD

9.6 E JCT SR 27, Spokane, WA

Built 1972 Load: 89.8 t ADT: 29,778

US 2

Good

Over: SPOKANE RIVER

0.7 E JCT I-90, Spokane, WA

Built 1992 Load: 89.8 t ADT: 47,591

SPOKANE FALLS BLVD

Good

Over: SPOKANE RIVER

0.2 W JCT OLD SR 290 SPU, Spokane, WA

Built 2003 Load: 89.8 t ADT: 9,582

US 395

Good

Over: BNSF RR

6.8 N JCT I-90, Spokane, WA

Built 2009 Load: 89.8 t ADT: 12,431

US 2

Good

Over: DEADMAN CREEK

5.2 NE JCT SR 291, Spokane, WA

Built 2011 Load: 89.8 t ADT: 24,711

US 2

Good

Over: LITTLE DEEP CREEK

2.4 E JCT SR 206, Spokane, WA

Built 1991 Load: 89.8 t ADT: 22,159

I-5 N-W RAMP

Good

Over: 14TH AVE SE

1.2 N JCT US 101, Thurston, WA

Built 1986 Load: 89.8 t ADT: 3,631

GATE ROAD

Good

Over: MIMA CREEK

3.69 miles SW 128th Ave, Thurston, WA

Built 1972 Load: 89.8 t ADT: 508

OLD HWY 99

Good

Over: SCATTER CREEK

NORTH CITY LIMIT TENINO, Thurston, WA

Built 2007 Load: 89.8 t ADT: 5,656

COTTONWOOD RD

Good

Over: YELLOWHAWK CREEK

0.090 S of RESER RD, Walla Walla, WA

Built 2009 Load: 89.8 t ADT: 1,970

SR 9

Good

Over: LAKE WHATCOM RY

1.0 N SKAGIT CO, Whatcom, WA

Built 1989 Load: 89.8 t ADT: 2,122

SR 272

Good

Over: CLEAR CREEK

5.2 E JCT US 195, Whitman, WA

Built 1995 Load: 89.8 t ADT: 692

SR 127

Good

Over: ALKALI FLAT CR

17.1 N GARFIELD CO, Whitman, WA

Built 1966 Load: 89.8 t ADT: 785

SR 241

Good

Over: SULFER CREEK

3.2 N JCT I-82, Yakima, WA

Built 1977 Load: 89.8 t ADT: 3,031

US 12

Good

Over: SOUP CREEK

16.9 E LEWIS CO, Yakima, WA

Built 1990 Load: 89.8 t ADT: 2,094

US 12

Good

Over: OAK CREEK

32.1 E LEWIS CO, Yakima, WA

Built 1993 Load: 89.8 t ADT: 2,412

I-82

Good

Over: WASTEWATER DRAINAGE

3.0 E JCT SR 22, Yakima, WA

Built 1980 Load: 89.8 t ADT: 25,190

Canal Maintenance

Good

Over: East Low Canal - Crab Ck

Crab Ck Siphon No.2 Inlet, Grant, WA

Built 1947 Load: 90.7 t ADT: 5

Canal Maintenance

Good

Over: East Low Canal - Crab Ck

Crab Ck Siphon No.2 Outle, Grant, WA

Built 1947 Load: 90.7 t ADT: 5

Canal Maintenance

Good

Over: East Low Canal - Brkn Rk

Broken Rock Siphon No.2 O, Grant, WA

Built 1947 Load: 90.7 t ADT: 1

NO DATA ENTERED

Good

Over: S. FK. BEAR CK.

2.4 MI NORTH OF HWY 101, Clallam, WA

Built 1998 Load: 90.8 t ADT: 75

MAINTENANCE ROAD

Good

Over: MAIN CANAL

MAIN CANAL 3.88, Grant, WA

Built 1977 Load: 91.5 t ADT: 10

118 AV NW

Good

Over: MINTER CREEK

0.6 NO JCT SR 302, Pierce, WA

Built 1997 Load: 91.6 t ADT: 2,050

RD 4 SW

Good

Over: Douglas Creek Drainage

20/2924N24E, Douglas, WA

Built 2009 Load: 92.0 t ADT: 106

FARMINGTON/1000

Good

Over: BRANCH WILLOW CREEK

5.43 MI S SR 27, Whitman, WA

Built 2000 Load: 92.0 t ADT: 461

NO DATA ENTERED

Good

Over: DRY CREEK

NO DATA ENTERED, Skamania, WA

Built 1981 Load: 93.6 t ADT: 131

NW Blvd

Good

Over: CSO Tank

NWBlvd, Spokane, WA

Built 2015 Load: 94.3 t ADT: 11,269

TULIPS ROAD

Good

Over: HUMPTULIPS OVERFLOW

0.0 W JCT 9423, Grays Harbor, WA

Built 2012 Load: 94.6 t ADT: 50

SPANAWAY LOOP RD S

Good

Over: CLOVER CREEK

1.0 S JCT SR 512, Pierce, WA

Built 1993 Load: 95.2 t ADT: 28,600

NE Woodburn Drive

Good

Over: Tributary to Lacamas Ck

.25 miles west of 283rd, Clark, WA

Built 2013 Load: 95.9 t ADT: 200

I-90

Good

Over: PAHA COULEE

13.1 E JCT SR 21, Adams, WA

Built 1959 Load: 96.9 t ADT: 11,918

Showing 8,251-8,300 of 8,808 bridges

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
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.

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.