Total Bridges
8,808
Public highway bridges in Washington
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
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)
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
05
Arkansas
4.71% top marginal rate
53
Washington
4.81% top marginal rate
18
Indiana
4.94% top marginal rate
20
Kansas
5.25% top marginal rate
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 DeficientOver: NINE MILE CREEK
19.05 E SR 21, Ferry, WA
Built 1958 Load: 2.7 t ADT: 47
4TH ST
PoorOver: MILL CREEK
4TH AND MILL CR, Walla Walla, WA
Built 1908 Load: 2.7 t ADT: 2,624
NO DATA ENTERED
Structurally DeficientOver: WEST BRANCH LECLERC CREE
NO DATA ENTERED, Pend Oreille, WA
Built 1954 Load: 3.5 t ADT: 5
STEVENS RD. -IRRIG
PoorOver: DRAIN
00.26 NO CHAMBERS, Yakima, WA
Built 1965 Load: 3.6 t ADT: 68
PEARL HILL RD
PoorOver: JORDAN CREEK
1.44 E JCT HILAND ORCH RD, Douglas, WA
Built 1953 Load: 4.2 t ADT: 72
FARM ACCESS
PoorOver: ROZA ID WASTEWAY NO 3
NR PARKER HEIGHTS, WA, Yakima, WA
Built 1955 Load: 4.4 t ADT: 10
All Bridges in Washington
SE SUMMIT LANDSBUR
GoodOver: ROCK CREEK
0.5 MI N OF SR169, King, WA
Built 2022 Load: 55.1 t ADT: 1,200
I-90 WB
GoodOver: UNNAMED CREEK
6.2 E JCT SR 906, Kittitas, WA
Built 2016 Load: 55.1 t ADT: 17,475
GROWLERS GULCH RD
GoodOver: ARKANSAS CREEK
0.27 W PH 10 (MP 2.83), Cowlitz, WA
Built 1953 Load: 55.3 t ADT: 134
US 12
GoodOver: GULCH
3.6 E JCT SR 123, Lewis, WA
Built 1997 Load: 55.3 t ADT: 1,729
Bolling Road
GoodOver: Gosnell Creek
0.23 S JCT Cloquallum rd, Mason, WA
Built 2003 Load: 55.3 t ADT: 36
KOPACHUCK DR NW
GoodOver: HENDERSON BAY INLET
5.5 W JCT SR 16, Pierce, WA
Built 2000 Load: 55.3 t ADT: 2,275
Elliott Road
GoodOver: Elliott Creek
1.5 E JCT SR9, Snohomish, WA
Built 2013 Load: 55.3 t ADT: 2,476
Havana Street
GoodOver: BNSF Rail Road
North 1000 Havana, Spokane, WA
Built 2012 Load: 55.3 t ADT: 6,335
WILKENSEN ROAD
GoodOver: CENTRALIA CANAL
.3 m N of NorPacif Rd, Thurston, WA
Built 1986 Load: 55.3 t ADT: 5,357
US 12
GoodOver: DRY CREEK
9.2 E JCT SR 125 SPUR, Walla Walla, WA
Built 2003 Load: 55.3 t ADT: 4,414
US 12
GoodOver: COPPEI CREEK
21.3 E JCT SR 125 SPUR, Walla Walla, WA
Built 2005 Load: 55.3 t ADT: 3,450
SR 9
GoodOver: BLACK SLOUGH
9.7 N SKAGIT CO, Whatcom, WA
Built 1952 Load: 55.3 t ADT: 3,307
Veterans Dr.
GoodOver: GREEN RIVER
2.0 MI E OF I-5, King, WA
Built 2006 Load: 55.4 t ADT: 5,200
288 ST S
GoodOver: LACAMAS CREEK
2.6 E JCT SR507, Pierce, WA
Built 2015 Load: 55.4 t ADT: 1,025
NO DATA ENTERED
GoodOver: CANYON CREEK
MP 1.1 SINCE 1990, Whatcom, WA
Built 2007 Load: 55.4 t ADT: 50
S NE
GoodOver: Dry Coulee
S NE 1.0 S of 39 NE, Grant, WA
Built 2005 Load: 55.7 t ADT: 91
US 101
GoodOver: STEAMBOAT CREEK
7.8 N GRAYS HBR CO, Jefferson, WA
Built 2021 Load: 55.7 t ADT: 1,165
CARTER RD.
GoodOver: SWAMP CREEK
0.2 N. KING CO. LINE, Snohomish, WA
Built 2013 Load: 55.7 t ADT: 3,021
"39" Road NE
GoodOver: Field Runoff
39 NE .01 E of R NE, Grant, WA
Built 2010 Load: 56.1 t ADT: 49
SR 202
GoodOver: PATTERSON CRK EAST TRIB
12.0 E JCT SR 520, King, WA
Built 2020 Load: 56.1 t ADT: 12,172
NELSON SIDING ROAD
GoodOver: BIG CREEK
01.45 SE of I-90, Kittitas, WA
Built 2012 Load: 56.1 t ADT: 800
Vantage Hwy
GoodOver: Cascade Canal
MP 5.25 Vantage Hwy, Kittitas, WA
Built 2023 Load: 56.1 t ADT: 3,979
NO DATA ENTERED
GoodOver: MOUSE CREEK
NO DATA ENTERED, Skamania, WA
Built 2006 Load: 56.1 t ADT: 129
I-90
GoodOver: UPRR
4.4 E JCT US 2, Spokane, WA
Built 2001 Load: 56.1 t ADT: 50,328
US 2
GoodOver: DRY FALLS DAM
2.1 E DOUGLAS CO, Grant, WA
Built 1984 Load: 56.2 t ADT: 1,935
WB SR 18 TO 304TH
GoodOver: SOOSETTE CREEK
4.7 E JCT SR 164, King, WA
Built 1997 Load: 56.2 t ADT: 3,745
E-S RAMP
GoodOver: BUILDING, PARKING LOT
0.2 W JCT I-90, King, WA
Built 2003 Load: 56.2 t ADT: 4,000
SR 18
GoodOver: TAYLOR CREEK
1.4 E JCT SR 169, King, WA
Built 2006 Load: 56.2 t ADT: 16,302
SR 202
GoodOver: EVANS CREEK
1.7 E JCT SR 520, King, WA
Built 2007 Load: 56.2 t ADT: 29,749
SR 202
GoodOver: DETENTION VAULT
2.0 E JCT SR 520, King, WA
Built 2007 Load: 56.2 t ADT: 14,868
SR 509
GoodOver: DES MOINES CK/MEM TRAIL
0.8 N JCT SR 516, King, WA
Built 2007 Load: 56.2 t ADT: 18,248
SR 21
GoodOver: LAKE CR
6.4 N JCT SR 28, Lincoln, WA
Built 1969 Load: 56.2 t ADT: 245
SNOHOMISH MNRO RD
GoodOver: PILCHUCK RIVER
0.8 S JCT SR 2, Snohomish, WA
Built 1999 Load: 56.2 t ADT: 4,458
311 TH AV SE
GoodOver: SKYKOMISH SLOUGH
0.5 S JCT SR2, Snohomish, WA
Built 2006 Load: 56.2 t ADT: 2,263
NO DATA ENTERED
GoodOver: DUNGENESS RIVER
NO DATA ENTERED, Clallam, WA
Built 1993 Load: 56.3 t ADT: 50
4700 ROAD
GoodOver: W. FORK WILLAME CREEK
NEAR SKATE CREEK, Lewis, WA
Built 2000 Load: 56.3 t ADT: 40
NO DATA ENTERED
GoodOver: NINE MILE CREEK
15.3 MILES NORTH OF HWY 1, Skamania, WA
Built 1988 Load: 56.3 t ADT: 10
WISHKAH ROAD
GoodOver: WISHKAH RIVER
08.20 N. ABERDEEN, Grays Harbor, WA
Built 1994 Load: 56.4 t ADT: 1,167
ALGER CAIN LAKE RD
GoodOver: SILVER CREEK
0.34 E JCT OLD HWY 99, Skagit, WA
Built 1992 Load: 56.4 t ADT: 4,286
US 12
GoodOver: NINE MILE HILL ROAD
10.3 E JCT US 730 SPUR, Walla Walla, WA
Built 2023 Load: 56.4 t ADT: 3,889
US 12
GoodOver: NINE MILE HILL ROAD
10.3 E JCT US 730 SPUR, Walla Walla, WA
Built 2023 Load: 56.4 t ADT: 3,889
SR 502
GoodOver: MILL CREEK
3.7 E JCT I-5, Clark, WA
Built 2015 Load: 56.7 t ADT: 23,865
GRIST MILL RD
GoodOver: CEDAR CREEK
0.5N OF CEDAR CK RD, Clark, WA
Built 1994 Load: 56.7 t ADT: 102
EAST QUILCENE ROAD
GoodOver: DONOVAN CREEK
0.77 E. JCT. CENTER RD, Jefferson, WA
Built 2006 Load: 56.7 t ADT: 513
292ND AVE SE
GoodOver: PATTERSON CREEK
.03 MI S OF SR-202, King, WA
Built 2012 Load: 56.7 t ADT: 7,269
SEABECK HIGHWAY
GoodOver: SEABECK CREEK
400 FT SW of LARSON LANE, Kitsap, WA
Built 2020 Load: 56.7 t ADT: 3,657
NO DATA ENTERED
GoodOver: LITTLE WHITE SALMON 1
NO DATA ENTERED, Skamania, WA
Built 1984 Load: 56.7 t ADT: 5
Maintenance Road
GoodOver: East Low Canal
Weber Branch Siphon, Grant, WA
Built 1950 Load: 56.8 t ADT: 1
East Low Canal
GoodOver: East Low Canal
Weber Coulee Siphon Outle, Grant, WA
Built 1950 Load: 56.8 t ADT: 1
NE 88th Street
GoodOver: FIFTH PLAIN CREEK
0.5 MI E. OF NE WARD ST, Clark, WA
Built 2016 Load: 57.0 t ADT: 839
Showing 7,901-7,950 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.
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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |