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
I-182
FairOver: COLUMBIA RIVER
0.9 E JCT SR 240, Benton, WA
Built 1984 Load: 30.8 t ADT: 35,631
US 2
FairOver: WENATCHEE R
1.3 E JCT US 97, Chelan, WA
Built 1962 Load: 30.8 t ADT: 8,342
US 2
FairOver: WENATCHEE RIVER
1.7 E JCT US 97, Chelan, WA
Built 1962 Load: 30.8 t ADT: 8,342
SR 113
FairOver: PYSHT RIVER
9.6 N JCT US 101, Clallam, WA
Built 1936 Load: 30.8 t ADT: 1,389
11.5 RD NW
FairOver: WASTEWAY
11.5 NW 0.1 W of H NW, Grant, WA
Built 1953 Load: 30.8 t ADT: 63
US 101
FairOver: BIG CREEK
15.1 N JCT SR 109, Grays Harbor, WA
Built 1947 Load: 30.8 t ADT: 2,511
SR 105
FairOver: O'LEARY CREEK
9.5 N JCT SR 105 SP, Grays Harbor, WA
Built 1953 Load: 30.8 t ADT: 6,067
KEYS ROAD
FairOver: CHEHALIS RIVER, FISH AC
1.5 S JCT SR 12, Grays Harbor, WA
Built 1981 Load: 30.8 t ADT: 454
LISCUUM ROAD
FairOver: ZIEGLER CREEK
0.2 S JCT 9340, Grays Harbor, WA
Built 1985 Load: 30.8 t ADT: 85
NEWMAN CREEK ROAD
FairOver: NEWMAN CREEK
1.9 N JCT CR 9710, Grays Harbor, WA
Built 1973 Load: 30.8 t ADT: 85
WYNOOCHE VALLEY RD
FairOver: ANDERSON CREEK
12.2 N JCT SR12, Grays Harbor, WA
Built 1965 Load: 30.8 t ADT: 226
HUMPTULIPS VALLEY
FairOver: LITTLE CREEK
00.8 N JCT 9423, Grays Harbor, WA
Built 1985 Load: 30.8 t ADT: 52
SR 203
FairOver: SLOUGH
0.8 N JCT SR 202, King, WA
Built 1945 Load: 30.8 t ADT: 7,622
SR 203
FairOver: SLOUGH
1.3 N JCT SR 202, King, WA
Built 1945 Load: 30.8 t ADT: 7,622
SR 203
FairOver: SLOUGH
2.1 N JCT SR 202, King, WA
Built 1945 Load: 30.8 t ADT: 7,622
I-90
FairOver: E FK ISSAQUAH CR
5.6 E JCT SR 900, King, WA
Built 1951 Load: 30.8 t ADT: 32,820
SR 18
FairOver: GREEN RIVER
2.5 E JCT SR 164, King, WA
Built 1959 Load: 30.8 t ADT: 27,460
I-5
FairOver: RAVENNA BLVD
2.3 N JCT SR 520, King, WA
Built 1961 Load: 30.8 t ADT: 88,792
I-5 S-W RAMP
FairOver: TERRAIN
5.6 N JCT SR 900, King, WA
Built 1967 Load: 30.8 t ADT: 19,202
SR 520
FairOver: 130TH AVE NE
1.0 E JCT I-405, King, WA
Built 1970 Load: 30.8 t ADT: 43,146
SR 167
FairOver: ELLINGSON ROAD
1.1 N PIERCE CO, King, WA
Built 1977 Load: 30.8 t ADT: 92,898
OVERPASS TO T-5
FairOver: W. MARGINAL WY S.W.
0.9 MI. W. OF SR 99, King, WA
Built 1997 Load: 30.8 t ADT: 1,000
3RD ST SW
FairOver: SOUND TRANSIT P&R ACCESS
0.3 MILES WEST OF SR 18, King, WA
Built 2002 Load: 30.8 t ADT: 3,200
SR 104
FairOver: HOOD CANAL
0.6 E JEFFERSON CO, Kitsap, WA
Built 2007 Load: 30.8 t ADT: 17,634
I-90
FairOver: GOLF COURSE RD
23.3 E JCT SR 906, Kittitas, WA
Built 1962 Load: 30.8 t ADT: 15,793
I-90
FairOver: GOLF COURSE RD
23.3 E JCT SR 906, Kittitas, WA
Built 1962 Load: 30.8 t ADT: 15,793
US 12
FairOver: COWLITZ R
0.8 E JCT SR 122, Lewis, WA
Built 1968 Load: 30.8 t ADT: 4,729
SHOREY RD
FairOver: RAIL ROAD DITCH
0.11 S RD 40073, Lewis, WA
Built 1955 Load: 30.8 t ADT: 2,814
STEARNS HILL ROAD
FairOver: BUNKER CREEK
6.0 NW ADNA, Lewis, WA
Built 1984 Load: 30.8 t ADT: 9
NORTH FORK RD
FairOver: N. FK NEWAUKUM RIVER
6.5 NE FOREST, Lewis, WA
Built 1963 Load: 30.8 t ADT: 212
BIG HANAFORD RD.
FairOver: HANAFORD CK.
3.0 E CENTRALIA, Lewis, WA
Built 1974 Load: 30.8 t ADT: 798
BEAVER CREEK RD
FairOver: SOUTH FORK CHEHALIS RIVE
1.2 SW CURTIS, Lewis, WA
Built 1982 Load: 30.8 t ADT: 109
LINDEN ST
FairOver: COAL CREEK
50 FEET EAST SR28, Lincoln, WA
Built 1980 Load: 30.8 t ADT: 500
SR 410
FairOver: 166TH AVE
1.1 E JCT SR 162, Pierce, WA
Built 1968 Load: 30.8 t ADT: 20,831
SR 20
FairOver: SWINOMISH CHAN
9.3 E ISLAND CO, Skagit, WA
Built 1972 Load: 30.8 t ADT: 17,952
SR 526
FairOver: HARDESON ROAD
2.9 E JCT SR 525, Snohomish, WA
Built 1969 Load: 30.8 t ADT: 67,918
I-5
FairOver: QUILCEDA CREEK
0.9 N JCT SR 528, Snohomish, WA
Built 1971 Load: 30.8 t ADT: 65,521
236 ST NE
FairOver: PILCHUCK CREEK
0.4 W JCT SR5, Snohomish, WA
Built 1968 Load: 30.8 t ADT: 1,445
INDEX-GALENA RD
FairOver: TROUBLESOME CREEK
11.2 NE JCT SR 2, Snohomish, WA
Built 1973 Load: 30.8 t ADT: 86
VERNON ROAD
FairOver: WETLAND @ N LAKE STEVENS
0.7 NE JCT SR9, Snohomish, WA
Built 2001 Load: 30.8 t ADT: 6,050
INLAND EMPIRE WAY
FairOver: LATAH CREEK
01.06 NORTH SR195, Spokane, WA
Built 1934 Load: 30.8 t ADT: 1,833
SOUTH FORK MILL CR
FairOver: SOUTH FORK MILL CREEK
.11 E JCT ALADDIN RD., Stevens, WA
Built 1965 Load: 30.8 t ADT: 51
SR 20
FairOver: HALF BR STA 163
6.1 E SKAGIT CO, Whatcom, WA
Built 1962 Load: 30.8 t ADT: 1,732
FLAT CREEK/6010
FairOver: UNION FLAT CREEK
1.07 MI E WINONA SOUTH, Whitman, WA
Built 1965 Load: 30.8 t ADT: 65
SR 821
FairOver: SELAH CREEK
2.1 N JCT SR 823, Yakima, WA
Built 1924 Load: 30.8 t ADT: 1,538
SHIELD ROAD
FairOver: USIS CANAL
00.16 S DEERING, Yakima, WA
Built 1957 Load: 30.8 t ADT: 420
NO DATA ENTERED
FairOver: SITKUM RIVER
NO DATA ENTERED, Clallam, WA
Built 1961 Load: 30.9 t ADT: 50
NO DATA ENTERED
FairOver: W FK HUMPTULIPS RIVER
NO DATA ENTERED, Grays Harbor, WA
Built 1948 Load: 30.9 t ADT: 150
ROAD
FairOver: DINGFORD CREEK
5.8 MI E OF 56/5640 JCT, King, WA
Built 1961 Load: 30.9 t ADT: 45
NO DATA ENTERED
FairOver: NORTH FORK TILTON RIVER
2 MILES NW OF JUNCTION WI, Lewis, WA
Built 1973 Load: 30.9 t ADT: 128
Showing 3,451-3,500 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 |