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
15 STREET NW
FairOver: MILL CREEK WETLAND
0.2 MI W OF SR 169, King, WA
Built 2014 Load: 46.3 t ADT: 20,648
CANNON RD.
FairOver: BUTTER CREEK
2.83 N JCT US 12, Lewis, WA
Built 1976 Load: 46.3 t ADT: 757
SR 167
FairOver: WEST VALLEY HWY
0.5 N JCT SR 410, Pierce, WA
Built 1972 Load: 46.3 t ADT: 45,555
FERRY LANDING
FairOver: CORMORANT PASSAGE
KETRON ISLAND, Pierce, WA
Built 1998 Load: 46.3 t ADT: 10
WHITTON AV.
FairOver: S.F.STILLAGUAMISH RIVER
21.6 E JCT SR 92, Snohomish, WA
Built 1989 Load: 46.3 t ADT: 18
183RD SW
FairOver: OVERFLOW CHANNEL
0.65 m E of Moon Rd, Thurston, WA
Built 1924 Load: 46.3 t ADT: 301
SARGENT ROAD
FairOver: SCATTER CREEK
.63 m N of 183rd, Thurston, WA
Built 1984 Load: 46.3 t ADT: 2,812
13TH AVE
FairOver: MILL CREEK
0.070 S CHERRY ST, Walla Walla, WA
Built 1980 Load: 46.3 t ADT: 2,690
I-5
FairOver: WHATCOM CREEK
2.9 N JCT SR 11, Whatcom, WA
Built 1957 Load: 46.3 t ADT: 30,905
ROAD
FairOver: BAGLEY CREEK
NO DATA ENTERED, Whatcom, WA
Built 2007 Load: 46.3 t ADT: 50
DUPONT,PROSPECT ST
FairOver: WHATCOM CREEK
AT POST OFFICE, Whatcom, WA
Built 1920 Load: 46.3 t ADT: 8,700
DIVISION STREET
FairOver: PAHA DRAINAGE DITCH
0.01 SE ELM AVE, Adams, WA
Built 1930 Load: 46.7 t ADT: 846
PINE BLUFF ROAD
FairOver: COULEE CREEK
0.2 N SEVEN MI RD, Spokane, WA
Built 1990 Load: 46.7 t ADT: 123
364th Ave SE
FairOver: RAGING RIVER
6.8 MI E OF ISSA-HO, King, WA
Built 1996 Load: 47.0 t ADT: 160
NO DATA ENTERED
FairOver: BOX CANYON CREEK #1
NO DATA ENTERED, Kittitas, WA
Built 1983 Load: 47.0 t ADT: 5
TINKHAM ROAD
FairOver: S.FK. SNOQUALMIE RIVER
I90 EAST EXIT 47, King, WA
Built 1972 Load: 47.1 t ADT: 120
QUINAULT S SHORE
FairOver: STORM BRANCH
7.7 NE JCT US 101, Grays Harbor, WA
Built 1982 Load: 47.2 t ADT: 199
DIABLO ST
FairOver: STETATTLE CREEK
Diable Bunkhouse Entrance, King, WA
Built 1941 Load: 47.2 t ADT: 300
DIABLO ACCESS RD
FairOver: DIABLO GORGE
Diablo Access Road, King, WA
Built 1962 Load: 47.2 t ADT: 220
TEANAWAY ROAD
FairOver: TEANAWAY RIVER
07.09 N US 970, Kittitas, WA
Built 1960 Load: 47.2 t ADT: 592
LEONARD ROAD
FairOver: S. FORK NEWAUKUM RIVER
0.3 S. ONALASKA, Lewis, WA
Built 1992 Load: 47.2 t ADT: 1,929
CLINE ROAD
FairOver: KILBORN CR
8.0 E RANDAL, Lewis, WA
Built 2000 Load: 47.2 t ADT: 45
SR 16
FairOver: UNION AVE
1.1 N JCT I-5, Pierce, WA
Built 1972 Load: 47.2 t ADT: 68,072
SR 290
FairOver: 2ND AVE
0.2 E JCT I-90, Spokane, WA
Built 1974 Load: 47.2 t ADT: 7,408
EVERGREEN PARKWAY
FairOver: MUD BAY ROAD
0.2 N JCT US 101, Thurston, WA
Built 1975 Load: 47.2 t ADT: 6,090
CORNELL CREEK RD
FairOver: HENDRICKS CREEK
00.7 SE MTBAKER HWY, Whatcom, WA
Built 1967 Load: 47.2 t ADT: 62
COTTAGE AVENUE
FairOver: WENATCHEE RIVER
0.14W JCT US2 & 97, Chelan, WA
Built 1983 Load: 48.0 t ADT: 8,366
I-82
FairOver: COFFIN ROAD
9.9 E JCT US 395, Benton, WA
Built 1983 Load: 48.1 t ADT: 10,827
ROAD
FairOver: DOCTOR CREEK
NO DATA ENTERED, Chelan, WA
Built 2006 Load: 48.1 t ADT: 5
HUNTINGTON AVE
FairOver: BNRR
0.13 W OF I-5 EXIT 48, Cowlitz, WA
Built 1994 Load: 48.1 t ADT: 3,650
NO DATA ENTERED
FairOver: SHERMAN CREEK
NO DATA ENTERED, Ferry, WA
Built 1954 Load: 48.1 t ADT: 10
US 12
FairOver: PATAHA CR
2.0 E COLUMBIA CO, Garfield, WA
Built 1920 Load: 48.1 t ADT: 1,846
I-5
FairOver: MILITARY RD
4.4 N JCT SR 18, King, WA
Built 1960 Load: 48.1 t ADT: 94,670
SR 522
FairOver: 195TH STREET
0.8 E JCT SR 202, King, WA
Built 1986 Load: 48.1 t ADT: 52,080
SB AIRPORT EXPY
FairOver: S 170TH ST
1 MI S OF SR 518, King, WA
Built 1972 Load: 48.1 t ADT: 45,000
I-90
FairOver: COAL CR
1.5 E KING CO, Kittitas, WA
Built 1972 Load: 48.1 t ADT: 34,909
10 AV S
FairOver: CLOVER CREEK
.61 W JCT SR7, Pierce, WA
Built 1967 Load: 48.1 t ADT: 2,370
I-5
FairOver: HILL DITCH
2.1 N SNOHOMISH CO, Skagit, WA
Built 1970 Load: 48.1 t ADT: 31,960
OLD SR9
FairOver: PILCHUCK CR
0.2 NE JCT SR9, Snohomish, WA
Built 1916 Load: 48.1 t ADT: 63
DRYDEN MAIN STREET
FairOver: WENATCHEE RIVER
00.0 DRYDEN MAIN ST, Chelan, WA
Built 1980 Load: 48.3 t ADT: 833
SR 261
FairOver: UP RR
12.5 N JCT US 12, Columbia, WA
Built 1967 Load: 48.3 t ADT: 474
WAHATIS PEAK ROAD
FairOver: WAHLUKE BRANCH CANAL
(White Bluffs Wasteway -, Grant, WA
Built 1967 Load: 48.3 t ADT: 1
PATIT ROAD
FairOver: PATIT CREEK
1.5 MILES WEST OF SR12, Columbia, WA
Built 2002 Load: 48.6 t ADT: 600
184TH AVE SE
FairOver: UNNAMED CREEK
1.1 MI W OF SR-18, King, WA
Built 2007 Load: 48.6 t ADT: 75
Marine Drive
FairOver: Log Channel
0.4 mi N of W Hill St., Clallam, WA
Built 1961 Load: 49.0 t ADT: 3,608
SR 262
FairOver: GENERATOR BYPASS CHUTE
17.5 N JCT SR 26, Grant, WA
Built 1989 Load: 49.0 t ADT: 1,559
I-5
FairOver: SBCD VIADUCT STA 2195
0.8 N JCT I-90, King, WA
Built 1964 Load: 49.0 t ADT: 49,417
DIABLO DAM ACCESS
FairOver: SKAGIT RIVER
Diablo Dam, King, WA
Built 1930 Load: 49.0 t ADT: 250
Shelton Matlock Rd
FairOver: NO. FORK GOLDSBOROUGH CK
0.23 E Dayton Airport rd, Mason, WA
Built 1988 Load: 49.0 t ADT: 1,777
I-5
FairOver: NISQUALLY OVERFLOW
0.6 N THURSTON CO, Pierce, WA
Built 1968 Load: 49.0 t ADT: 61,580
Showing 4,401-4,450 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 |