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
US 12
PoorOver: WAREHOUSE YARD
8.2 E WALLA WAL CO, Columbia, WA
Built 1933 Load: 26.3 t ADT: 2,430
NO DATA ENTERED
PoorOver: LOST CREEK DITCH
7 MILES SW OF MT. ADAMS R, Skamania, WA
Built 1983 Load: 26.3 t ADT: 50
SR 529
PoorOver: SNOHOMISH RIVER
4.7 N JCT SR 529 SPUR, Snohomish, WA
Built 1954 Load: 26.3 t ADT: 15,905
I-90
PoorOver: UMPTANUM RD
2.2 E JCT US 97, Kittitas, WA
Built 1967 Load: 26.9 t ADT: 15,014
WENZEL SLOUGH ROAD
PoorOver: VANCE CREEK
01.3 W JCT 9641, Grays Harbor, WA
Built 1971 Load: 27.2 t ADT: 124
252 AVE SE ISSAQ
PoorOver: ISSAQUAH CREEK
0.1 MI S HOBART-ISS ROAD, King, WA
Built 1951 Load: 27.2 t ADT: 330
EASTLAKE AVE NE
PoorOver: PORTAGE BAY
3200 EASTLAKE AVE, King, WA
Built 1915 Load: 27.2 t ADT: 35,000
US 2
PoorOver: S FK SKYKOMISH RIVER
20.3 E JCT SR 203, Snohomish, WA
Built 1933 Load: 27.2 t ADT: 6,051
SALAKANUM WY
PoorOver: ANDERSON CREEK
00.4 SO OF GOSHEN, Whatcom, WA
Built 1954 Load: 27.5 t ADT: 50
FIVE MILE RD
PoorOver: MILL CREEK
02.62NW SCENIC LOOP, Walla Walla, WA
Built 1953 Load: 27.9 t ADT: 340
MONTE ELMA ROAD
PoorOver: SATSOP OVERFLOW CHANNEL
0.6 E JCT W.SATSOP, Grays Harbor, WA
Built 1922 Load: 28.1 t ADT: 1,900
US 101
PoorOver: BIG QUILCENE RIVER
11.5 S JCT SR 104, Jefferson, WA
Built 1936 Load: 28.1 t ADT: 3,129
ROAD
PoorOver: THETIS CREEK
NO DATA ENTERED, Kittitas, WA
Built 1952 Load: 28.1 t ADT: 20
SUNRISE ROAD
PoorOver: FRYINGPAN CREEK
4.3 MILES SOUTHWEST OF JC, Pierce, WA
Built 1931 Load: 28.1 t ADT: 1,786
NO DATA ENTERED
PoorOver: SWIFT CREEK
ABOUT 4 MILES EAST OF COW, Skamania, WA
Built 1957 Load: 28.1 t ADT: 650
SR 153
PoorOver: METHOW RIVER
3.7 N JCT US 97, Okanogan, WA
Built 1933 Load: 28.2 t ADT: 1,621
SR 21
PoorOver: SAN POIL RIVER
25.1 N LINCOLN CO, Ferry, WA
Built 1931 Load: 28.8 t ADT: 195
PROJECT AND PUBLIC
PoorOver: THE DALLES DAM
NORTH ACCESS BR OVER SP&S, Klickitat, WA
Built 1956 Load: 28.8 t ADT: 22
DUCK LAKE RD 92310
PoorOver: DUCK CREEK
18.69NE SR21 FAS302, Lincoln, WA
Built 1972 Load: 28.8 t ADT: 120
WYNOOCHE WISHKAH
PoorOver: WYNOOCHEE RIVER SLOUGH
0.6 W JCT 9519, Grays Harbor, WA
Built 1973 Load: 29.0 t ADT: 728
US 2
PoorOver: STREAM
7.2 E SNOHOMISH CO, King, WA
Built 1937 Load: 29.0 t ADT: 5,562
SR 162
PoorOver: S PRAIRIE CR
15.3 E JCT SR 410, Pierce, WA
Built 1956 Load: 29.0 t ADT: 9,533
SR 529
PoorOver: UNION SL
5.9 N JCT SR 529 SPUR, Snohomish, WA
Built 1927 Load: 29.0 t ADT: 16,054
RAY SYMMONDS ROAD
PoorOver: SELAH-MOXEE CANAL
00.28 E EAST SELAH, Yakima, WA
Built 1961 Load: 29.2 t ADT: 95
SR 23
PoorOver: IMBLER CREEK
27.7 N JCT US 195, Whitman, WA
Built 1946 Load: 29.5 t ADT: 262
SACKMAN RD
PoorOver: EAST LOW CANAL
00.05 MI E FOX RD, Adams, WA
Built 1953 Load: 29.9 t ADT: 6
FS ROUTE NO. 659
PoorOver: UPPER W. BRANCH
UPPER WEST BRANCH FORK, Pend Oreille, WA
Built 1954 Load: 30.5 t ADT: 50
NORTH RIVER ROAD
PoorOver: NORTH RIVER
9.8 E JCT US 101, Grays Harbor, WA
Built 1951 Load: 30.8 t ADT: 303
SR 203
PoorOver: SLOUGH
0.5 N JCT SR 202, King, WA
Built 1945 Load: 30.8 t ADT: 7,622
SR 203
PoorOver: SLOUGH
1.4 N JCT SR 202, King, WA
Built 1945 Load: 30.8 t ADT: 7,622
SR 9
PoorOver: SKAGIT RIVER
4.7 N JCT SR 538, Skagit, WA
Built 1959 Load: 30.8 t ADT: 10,545
I-5
PoorOver: SAMISH RIVER, PVT RD
2.9 N JCT SR 11, Skagit, WA
Built 1963 Load: 31.1 t ADT: 26,524
I-90
PoorOver: WILSON CREEK
3.1 E JCT US 97, Kittitas, WA
Built 1967 Load: 31.4 t ADT: 15,014
I-90
PoorOver: BNSF RAILROAD
15.4 E JCT SR 261, Adams, WA
Built 1968 Load: 31.7 t ADT: 10,407
US 2
PoorOver: COLUMBIA RIVER
0.3 E JCT US 97 ALT, Chelan, WA
Built 1975 Load: 31.7 t ADT: 25,688
I-90
PoorOver: COAL CREEK
0.5 E JCT SR 906, Kittitas, WA
Built 1956 Load: 31.7 t ADT: 17,475
STEVENS CANYON ROA
PoorOver: RAVINE
5.5 miles southwest of jc, Lewis, WA
Built 1952 Load: 31.7 t ADT: 1,375
MANSFIELD NORTH RD
PoorOver: FOSTER CREEK DRAINAGE
1.11 SE JCT BDGPRT HILL R, Douglas, WA
Built 1961 Load: 31.8 t ADT: 55
F&S GRADE ROAD
PoorOver: SAMISH RIVER
0.14 S JCT PRAIRIE RD, Skagit, WA
Built 1974 Load: 31.8 t ADT: 630
RD. NO. 49
PoorOver: LOST CREEK
M.P. 4.5 RD. NO. 49, Snohomish, WA
Built 1959 Load: 31.8 t ADT: 37
BIA 80940
PoorOver: OVERFLOW CHANNEL
AT FISH HATCHERY, Grays Harbor, WA
Built 1970 Load: 32.4 t ADT: 500
I-90
PoorOver: BNSF RAILROAD
15.4 E JCT SR 261, Adams, WA
Built 1968 Load: 32.7 t ADT: 10,407
I-82
PoorOver: YAKIMA RIVER
6.7 E YAKIMA CO LN, Benton, WA
Built 1977 Load: 32.7 t ADT: 10,597
US 101
PoorOver: MILL CREEK
4.4 N JCT SR 107, Grays Harbor, WA
Built 1949 Load: 32.7 t ADT: 6,220
SR 104 EAST HALF
PoorOver: HOOD CANAL
0.1 E JEFFERSON CO, Kitsap, WA
Built 2009 Load: 32.7 t ADT: 17,634
W. Bulb Farm Rd.
PoorOver: CLOQUALLUM CREEK
0.35 S JCT Cloquallum rd, Mason, WA
Built 1961 Load: 32.7 t ADT: 62
SEQUALITCHEW ROAD
PoorOver: SEQUALITCHEW CREEK
GRID COORD ET291177, Pierce, WA
Built 1950 Load: 32.7 t ADT: 200
BAY VIEW-EDISON RD
PoorOver: JOE LEARY SLOUGH
5.8 N JCT SR-20, Skagit, WA
Built 1955 Load: 32.7 t ADT: 588
US 195
PoorOver: BN RY & OLD SR 195
3.5 N JCT SR 271, Whitman, WA
Built 1975 Load: 32.7 t ADT: 4,652
US 97
PoorOver: WANITY SLOUGH
1.5 N JCT SR 22, Yakima, WA
Built 1964 Load: 32.7 t ADT: 6,048
Showing 8,551-8,600 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 |