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
MAIN STREET
GoodOver: PALOUSE RIVER
0.30 MI SW SR 272, Whitman, WA
Built 1982 Load: 36.9 t ADT: 100
I-90
GoodOver: MOODY RD
2.9 E GRANT CO, Adams, WA
Built 1972 Load: 37.2 t ADT: 5,894
I-90
GoodOver: FARRIER COULEE
4.7 E GRANT CO, Adams, WA
Built 1972 Load: 37.2 t ADT: 5,807
SR 21
GoodOver: LIND COULEE
2.0 N JCT US 395, Adams, WA
Built 1986 Load: 37.2 t ADT: 716
US 395
GoodOver: NP UPRR & COLUMBIA CANAL
4.9 N JCT I-82, Benton, WA
Built 1980 Load: 37.2 t ADT: 24,266
I-82
GoodOver: BADGER RD & BNSF RR
6.4 E JCT I-182, Benton, WA
Built 1984 Load: 37.2 t ADT: 6,986
US 97ALT
GoodOver: CHELAN RIVER
3.5 N JCT SR 971 END, Chelan, WA
Built 1978 Load: 37.2 t ADT: 5,569
US 101 NB
GoodOver: SIEBERT CREEK
9.8 E JCT SR 117, Clallam, WA
Built 1999 Load: 37.2 t ADT: 10,039
NO DATA ENTERED
GoodOver: N FORK SITKUM RIVER
NO DATA ENTERED, Clallam, WA
Built 1989 Load: 37.2 t ADT: 50
LAKE ALDWELL ROAD
GoodOver: INDIAN CREEK
0.1 N JCT SR 101, Clallam, WA
Built 1992 Load: 37.2 t ADT: 59
MAPLE HILL RD S
GoodOver: OWL CREEK
0.04 S ROSE VALLEY (1.28), Cowlitz, WA
Built 1954 Load: 37.2 t ADT: 100
WEIMER HILL RD
GoodOver: MEADOW CREEK
6.1 N JCT SR 12, Garfield, WA
Built 1971 Load: 37.2 t ADT: 45
US 101
GoodOver: S BRANCH BIG CREEK
14.5 N JCT SR 109, Grays Harbor, WA
Built 2011 Load: 37.2 t ADT: 2,511
NO DATA ENTERED
GoodOver: BIG CREEK
NO DATA ENTERED, Grays Harbor, WA
Built 1973 Load: 37.2 t ADT: 100
PORTER CREEK RD W
GoodOver: CHEHALIS RIVER
0.1 W JCT SR 12, Grays Harbor, WA
Built 1986 Load: 37.2 t ADT: 713
NORTH SHORE ROAD
GoodOver: KESTNER CREEK
5.3 MI. NE OF JCT. HWY. 1, Grays Harbor, WA
Built 1990 Load: 37.2 t ADT: 258
SR 525
GoodOver: POSSESSION SOUND
1.9 N JCT SR 526, Island, WA
Built 2003 Load: 37.2 t ADT: 1,078
N-W RAMP
GoodOver: RAILROAD
4.1 N JCT SR 900, King, WA
Built 1967 Load: 37.2 t ADT: 3,978
US 2
GoodOver: SLOUGH
6.6 E SNOHOMISH CO, King, WA
Built 1989 Load: 37.2 t ADT: 5,562
SR 18
GoodOver: JENKINS CREEK
1.1 E JCT SR 516, King, WA
Built 2002 Load: 37.2 t ADT: 36,767
SR 7
GoodOver: NISQUALLY R OVERFLOW
16.1 N JCT SR 508, Lewis, WA
Built 1945 Load: 37.2 t ADT: 2,818
GARRARD CREEK RD.
GoodOver: S.FORK GARRARD CREEK
5.10 NW.JCT.91008, Lewis, WA
Built 1972 Load: 37.2 t ADT: 175
COOK ROAD
GoodOver: LAKE CREEK
2.0 SE CURTIS, Lewis, WA
Built 1994 Load: 37.2 t ADT: 25
NO DATA ENTERED
GoodOver: LEBAR CREEK
NO DATA ENTERED, Mason, WA
Built 1974 Load: 37.2 t ADT: 25
US 101
GoodOver: STUART SL
20.9 N JCT SR 4, Pacific, WA
Built 1975 Load: 37.2 t ADT: 3,392
US 101
GoodOver: CARRUTHERS SL
21.4 N JCT SR 4, Pacific, WA
Built 1975 Load: 37.2 t ADT: 3,392
SR 16
GoodOver: UNION AVE
1.1 N JCT I-5, Pierce, WA
Built 1972 Load: 37.2 t ADT: 68,072
C ST S
GoodOver: CLOVER CREEK
.1 W JCT SR 7, Pierce, WA
Built 1967 Load: 37.2 t ADT: 9,775
SR 509
GoodOver: HYLEBOS CREEK
4.1 N JCT I-705, Pierce, WA
Built 1967 Load: 37.2 t ADT: 22,045
SPANAWAY LOOP RD S
GoodOver: COFFEE CREEK
SOUTH SPANAWAY CREEK, Pierce, WA
Built 2004 Load: 37.2 t ADT: 20,300
I-5
GoodOver: FRIDAY CREEK
11.1 N JCT SR 11, Skagit, WA
Built 1964 Load: 37.2 t ADT: 23,218
I-5
GoodOver: FRIDAY CREEK
11.1 N JCT SR 11, Skagit, WA
Built 1964 Load: 37.2 t ADT: 23,218
SOUTH SKAGIT HWY
GoodOver: DAVIS SLOUGH
13.9 E JCT SR-9, Skagit, WA
Built 2014 Load: 37.2 t ADT: 610
20TH ST SE
GoodOver: EBEY SLOUGH
2.0 E JCT I-5, Snohomish, WA
Built 1995 Load: 37.2 t ADT: 200
CRESCENT LAKE RD.
GoodOver: SNOQUALMIE RIVER
1.3 W JCT SR 203, Snohomish, WA
Built 1996 Load: 37.2 t ADT: 2,317
I-90
GoodOver: S ALTAMONT ST
1.7 E JCT US 2, Spokane, WA
Built 1957 Load: 37.2 t ADT: 114,844
US 195
GoodOver: DRAKE RD
5.8 N WHITMAN CO, Spokane, WA
Built 1973 Load: 37.2 t ADT: 4,652
NB US 395
GoodOver: LINCOLN RD
5.3 N JCT I-90, Spokane, WA
Built 2008 Load: 37.2 t ADT: 12,431
I-5
GoodOver: SCATTER CREEK
2.0 N JCT US 12, Thurston, WA
Built 2010 Load: 37.2 t ADT: 66,693
OLD PACIFIC HWY
GoodOver: NISQUALLY RIVER
PIERCE CO LINE, Thurston, WA
Built 1998 Load: 37.2 t ADT: 13,122
PEISSNER RD
GoodOver: ELBOW LAKE CREEK
Peissner Rd at County End, Thurston, WA
Built 2020 Load: 37.2 t ADT: 240
SR 125
GoodOver: WALLA WALLA RIVER
0.8 N OREGON, Walla Walla, WA
Built 1988 Load: 37.2 t ADT: 16,295
WICKERSHAM RD
GoodOver: NP RR
00.3 W INNIS CK RD, Whatcom, WA
Built 1955 Load: 37.2 t ADT: 159
SR 821
GoodOver: ROZA CANAL
0.1 N JCT SR 823, Yakima, WA
Built 1969 Load: 37.2 t ADT: 3,796
SR 241
GoodOver: SUNNYSIDE CANAL
2.7 N JCT I-82, Yakima, WA
Built 1977 Load: 37.2 t ADT: 3,031
SR 410
GoodOver: AMERICAN RIVER
8.8 E PIERCE CO, Yakima, WA
Built 1987 Load: 37.2 t ADT: 810
LAYMAN RD.
GoodOver: SOUTH FORK TIETON
TO DARLAND MTN., Yakima, WA
Built 1985 Load: 37.2 t ADT: 20
NO DATA ENTERED
GoodOver: MINNOW CREEK
NO DATA ENTERED, Chelan, WA
Built 2021 Load: 37.3 t ADT: 20
MOTTELER ROAD
GoodOver: CHUMSTICK CREEK
0.2 MI. FROM NORTH ROAD, Chelan, WA
Built 2013 Load: 37.3 t ADT: 41
SR 502
GoodOver: DRAINAGE SLOUGH
3.2 E JCT I-5, Clark, WA
Built 2014 Load: 37.3 t ADT: 22,873
Showing 6,701-6,750 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 |