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
NB SR 539
FairOver: NOOKSACK R OVERFLOW
2.6 N JCT SR 544, Whatcom, WA
Built 1950 Load: 12.3 t ADT: 8,300
THOMPSON ROAD
FairOver: COWICHE CREEK, N. FORK
00.36 E ELLIOT ROAD, Yakima, WA
Built 1951 Load: 12.3 t ADT: 991
Nuss Farm Road
FairOver: EAST LOW CANAL EL 20 LAT
NR MOSES LAKE, WA, Grant, WA
Built 1957 Load: 12.6 t ADT: 5
SR 520
FairOver: PORTAGE BAY
0.3 E JCT I-5, King, WA
Built 1963 Load: 12.6 t ADT: 35,304
I-90
FairOver: FRONT ST N
1.3 E JCT SR 900, King, WA
Built 1971 Load: 12.6 t ADT: 30,913
16TH AVE S
FairOver: MCSORLEY CREEK
0.1 MI S.OF S 250TH, King, WA
Built 1951 Load: 12.6 t ADT: 10,000
US 12
FairOver: SLIDE AREA
5.0 E JCT SR 123, Lewis, WA
Built 1968 Load: 12.6 t ADT: 1,729
SR509
FairOver: THEA FOSS WATRWAY & D ST
0.1 N JCT I-705, Pierce, WA
Built 1996 Load: 12.6 t ADT: 36,578
I-5 SB
FairOver: RAILROAD
3.8 N JCT SR 527, Snohomish, WA
Built 1967 Load: 12.6 t ADT: 88,747
ANDERSON ROAD
FairOver: UPRR TRACKS
1.0 E CHENEY-SPOK, Spokane, WA
Built 1971 Load: 12.6 t ADT: 221
TULE RD.
FairOver: IRRIGATION CANAL
00.48 W PLANK ROAD, Yakima, WA
Built 1957 Load: 12.6 t ADT: 36
BUMPING RIVER ROAD
FairOver: BUMPING RIVER
00.34 E OF MP 10, Yakima, WA
Built 1955 Load: 12.6 t ADT: 568
WAPATO ROAD,SOUTH
FairOver: MARION DRAIN
00.01 N MARIONDRAIN, Yakima, WA
Built 1974 Load: 12.6 t ADT: 69
ALLENDER RD
FairOver: STILLWATER CREEK
0.97 W SR 506 (MP 0.86), Cowlitz, WA
Built 1955 Load: 12.7 t ADT: 20
I RD SW
FairOver: WEST CANAL
I SW .7 North of 11, Grant, WA
Built 1956 Load: 12.7 t ADT: 71
SR 99
FairOver: LAKE UNION
7.7 N JCT SR 509, King, WA
Built 1931 Load: 12.7 t ADT: 53,501
E BOSTON TERRACE
FairOver: RAVINE
1660 E BOSTON TERRACE, King, WA
Built 1948 Load: 12.7 t ADT: 160
JAY AVENUE
FairOver: DRAINAGE
COUNTRY HOMES, Spokane, WA
Built 1963 Load: 12.7 t ADT: 159
MACK RD
FairOver: SUMAS RIVER
00.2 W OAT COLES RD, Whatcom, WA
Built 1932 Load: 12.7 t ADT: 106
NE 182ND AVE
FairOver: MORGAN CREEK
0.2 S JCT NE174 ST, Clark, WA
Built 1956 Load: 13.0 t ADT: 9,692
FRANKLIN ROAD
FairOver: GREEN RIVER
4.0 MI E OF SR-169, King, WA
Built 1914 Load: 13.0 t ADT: 350
WATER STREET
FairOver: TOWN DITCH
00.24 SOUTH HELENA STREET, Kittitas, WA
Built 2003 Load: 13.0 t ADT: 6,556
UNION VALLEY ROAD
FairOver: WILSON CREEK
5.93 SW SR 21, Lincoln, WA
Built 1900 Load: 13.0 t ADT: 14
I-5
FairOver: 52ND AVE W
2.3 N JCT SR 104, Snohomish, WA
Built 1963 Load: 13.0 t ADT: 96,309
SR 169
FairOver: NP RY
10.4 N JCT SR 164, King, WA
Built 1939 Load: 13.3 t ADT: 15,203
NE 159TH ST
FairOver: COTTAGE LAKE CREEK
0.1 MI W OF AVONDALE RD, King, WA
Built 1987 Load: 13.3 t ADT: 1,097
WESTSIDE RD
FairOver: HILINE CANAL
00.03 S GOLF COURSE, Kittitas, WA
Built 1930 Load: 13.3 t ADT: 1,028
WASHINGTON ST
FairOver: ROCK CREEK
0.04 W SR 231, Lincoln, WA
Built 1972 Load: 13.3 t ADT: 43
MOORE ROAD
FairOver: TAMARACK CREEK
1.80 SW SR 231, Lincoln, WA
Built 1936 Load: 13.3 t ADT: 20
SR 153
FairOver: METHOW RIVER
18.9 N JCT US 97, Okanogan, WA
Built 1939 Load: 13.3 t ADT: 1,363
FAS ROUTE U243
FairOver: SIMILKAMEEN RIVER
.NESWS28T40NR27E, Okanogan, WA
Built 1950 Load: 13.3 t ADT: 985
CHAMBERS CK RD W
FairOver: CHAMBERS CREEK
1.0 SO JCT 64 ST W, Pierce, WA
Built 1946 Load: 13.3 t ADT: 7,275
ELOIKA ROAD
FairOver: LITTLE SPOKANE RIVER
1.1 MI E OF US 2, Spokane, WA
Built 1989 Load: 13.3 t ADT: 271
15TH ST.,N.
FairOver: CREEK
00.09 N HARTFORD RD, Yakima, WA
Built 1959 Load: 13.3 t ADT: 177
MAINTENANCE ROAD
FairOver: WEST CANAL
West Canal Lateral 35.9D,, Grant, WA
Built 1968 Load: 13.5 t ADT: 30
DEWALD RD
FairOver: INTERMITTENT STREAM
2.11 MI N of Hiller Rd., Adams, WA
Built 1957 Load: 13.6 t ADT: 23
BAUMAN RD.
FairOver: INTERMITTENT STREAM
00.24 MI N DANEKAS RD, Adams, WA
Built 1900 Load: 13.6 t ADT: 80
BOOTH AVE.
FairOver: SAND DITCH
00.05 EAST OF SR260, Adams, WA
Built 1910 Load: 13.6 t ADT: 355
SECOND ST.
FairOver: ASOTIN CREEK
0.0 E FAS RT F021, Asotin, WA
Built 1920 Load: 13.6 t ADT: 500
US 2
FairOver: ICICLE DITCH SPILLWAY
16.3 E JCT SR 207, Chelan, WA
Built 1940 Load: 13.6 t ADT: 12,506
NE 67TH AVE
FairOver: MILL CREEK
0.2S NE219ST(SR502, Clark, WA
Built 1957 Load: 13.6 t ADT: 141
WREN LOOP RD
FairOver: ARKANSAS CREEK
0.02 S DELAMETER RD (0.17, Cowlitz, WA
Built 1960 Load: 13.6 t ADT: 195
US 395
FairOver: EAST DEER CR
17.1 N JCT SR 20, Ferry, WA
Built 1900 Load: 13.6 t ADT: 712
US 395
FairOver: LITTLE BOULDER CR
21.8 N JCT SR 20, Ferry, WA
Built 1900 Load: 13.6 t ADT: 321
6 RD NE
FairOver: ROCKY COULEE
6 NE 0.1 W of W NE, Grant, WA
Built 1914 Load: 13.6 t ADT: 71
MARLIN NORTH ROAD
FairOver: CON-NA-WAI CREEK
X NE 0.04 N of 26 NE, Grant, WA
Built 1916 Load: 13.6 t ADT: 23
ELMA MCCLEARY ROAD
FairOver: WEST FORK WILDCAT CREEK
4.1 NE JCT SR 8, Grays Harbor, WA
Built 1921 Load: 13.6 t ADT: 2,267
I-90 WB ON RAMP
FairOver: 224TH AVE NW & TRAIL
1.0 E JCT SR 900, King, WA
Built 1971 Load: 13.6 t ADT: 13,808
SOUTH THORP HWY
FairOver: WESTSIDE DITCH
00.10 N THORP CEM R, Kittitas, WA
Built 1926 Load: 13.6 t ADT: 853
SOUTH THORP HWY
FairOver: YAKIMA RIVER
00.30 SW I-90, Kittitas, WA
Built 1967 Load: 13.6 t ADT: 4,937
Showing 1,451-1,500 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 |