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: ARGENT ROAD
4.8 E BENTON CO, Franklin, WA
Built 1984 Load: 39.9 t ADT: 29,238
O'NEILL ROAD
FairOver: NEWMAN CREEK
0.7 N JCT CR 9710, Grays Harbor, WA
Built 1972 Load: 39.9 t ADT: 126
NORTH SHORE ROAD
FairOver: QUINAULT RIVER
12.7 MI. NE OF JCT. HWY., Jefferson, WA
Built 1974 Load: 39.9 t ADT: 200
MARINE VIEW DR
FairOver: SALTWATER STATE PARK
2.6 MI NW OF JCT SR99, King, WA
Built 1934 Load: 39.9 t ADT: 3,507
I-5
FairOver: DUWAMISH R RR CITY ST
0.4 N JCT SR 599, King, WA
Built 1964 Load: 39.9 t ADT: 94,284
I-5
FairOver: DUWAMISH R RR CITY ST
0.4 N JCT SR 599, King, WA
Built 1964 Load: 39.9 t ADT: 94,284
I-405
FairOver: GREEN RIVER
0.9 N JCT I-5, King, WA
Built 1964 Load: 39.9 t ADT: 153,756
I-5
FairOver: TERRAIN
5.6 N JCT SR 900, King, WA
Built 1967 Load: 39.9 t ADT: 22,370
I-90
FairOver: CLE ELUM RIVER
26.0 E JCT SR 906, Kittitas, WA
Built 1949 Load: 39.9 t ADT: 16,386
I-90
FairOver: CASCADE CANAL OVERFLOW
17.3 E JCT SR 970, Kittitas, WA
Built 1967 Load: 39.9 t ADT: 15,317
I-90
FairOver: CASCADE CANAL OVERFLOW
17.3 E JCT SR 970, Kittitas, WA
Built 1967 Load: 39.9 t ADT: 15,317
I-90
FairOver: DRY RELIEF
10.1 E JCT I-82, Kittitas, WA
Built 1968 Load: 39.9 t ADT: 8,460
I-90
FairOver: STEVENS RD
10.3 E JCT I-82, Kittitas, WA
Built 1968 Load: 39.9 t ADT: 8,460
I-90
FairOver: STEVENS RD
10.3 E JCT I-82, Kittitas, WA
Built 1968 Load: 39.9 t ADT: 8,460
AIRPORT ROAD
FairOver: CASCADE CANAL
0.20 NORTH BENDER ROAD, Kittitas, WA
Built 2006 Load: 39.9 t ADT: 4,772
UNIVERSITY WAY
FairOver: WHISKEY CREEK
0.0N EW CENS341818, Kittitas, WA
Built 2006 Load: 39.9 t ADT: 11,706
HARMS ROAD
FairOver: SWALE CREEK
0.5 MI NORTH OF CR 22000, Klickitat, WA
Built 2009 Load: 39.9 t ADT: 76
ELK CREEK RD.
FairOver: ELK CREEK
0.02 W JCT 26890, Lewis, WA
Built 1952 Load: 39.9 t ADT: 95
JACKSON HWY
FairOver: NEWAUKUM OVERFLOW
2.56 N JCT SR 508, Lewis, WA
Built 1926 Load: 39.9 t ADT: 3,427
JACKSON HWY.
FairOver: NEWAUKUM OVERFLOW
2.49 N JCT SR 508, Lewis, WA
Built 1926 Load: 39.9 t ADT: 3,427
JACKSON HWY.
FairOver: NEWAUKUM OVERFLOW
2.45 N JCT SR 508, Lewis, WA
Built 1926 Load: 39.9 t ADT: 3,427
US 101
FairOver: JORSTED CREEK
6.8 S JEFFERSON CO, Mason, WA
Built 1985 Load: 39.9 t ADT: 2,489
SR 20
FairOver: S FK LOST CREEK
5.4 E JCT SR 31, Pend Oreille, WA
Built 1986 Load: 39.9 t ADT: 1,052
WASHINGTON ROUTE 4
FairOver: DEADWOOD CREEK
2.8 MILES NORTH OF JCT. W, Pierce, WA
Built 1994 Load: 39.9 t ADT: 2,564
SR 11
FairOver: OYSTER CREEK
10.8 N JCT I-5, Skagit, WA
Built 1924 Load: 39.9 t ADT: 2,412
PRAIRIE ROAD
FairOver: FRIDAY CREEK
0.17 Mi E of OLD HWY 99, Skagit, WA
Built 1975 Load: 39.9 t ADT: 2,757
PRAIRIE ROAD
FairOver: SAMISH RIVER
3.8 E JCT OLD HWY 99, Skagit, WA
Built 1975 Load: 39.9 t ADT: 1,539
CASCADE RIVER ROAD
FairOver: LOWER NORTH FORK CASCADE
20.5 Miles East of Marble, Skagit, WA
Built 2008 Load: 39.9 t ADT: 50
SR 530
FairOver: N FK STILLAGUAMISH R
7.6 E JCT SR 9, Snohomish, WA
Built 1966 Load: 39.9 t ADT: 5,322
I-405
FairOver: DAMSON RD
2.2 N JCT SR 527, Snohomish, WA
Built 1968 Load: 39.9 t ADT: 60,143
228TH ST SE
FairOver: BEAR CREEK
0.1 W JCT SR 9, Snohomish, WA
Built 1989 Load: 39.9 t ADT: 7,573
US 395
FairOver: WHITWORTH DRIVE
1.3 N JCT US 2, Spokane, WA
Built 1985 Load: 39.9 t ADT: 27,644
BOSTON STREET
FairOver: DESCHUTES RIVER
00.10 S. CUSTER WAY, Thurston, WA
Built 1915 Load: 39.9 t ADT: 7,400
NORTHWEST AVENUE
FairOver: SQUALLICUM WY,CRK,CMSTP&
1.5 NW. CITY HALL, Whatcom, WA
Built 1971 Load: 39.9 t ADT: 10,700
I-82
FairOver: SUNNYSIDE CANAL
5.5 E JCT SR 241, Yakima, WA
Built 1979 Load: 39.9 t ADT: 12,175
I-82
FairOver: MIDVALE ROAD
8.6 E JCT SR 223, Yakima, WA
Built 1982 Load: 39.9 t ADT: 9,325
NO DATA ENTERED
FairOver: MATHENY CREEK
NO DATA ENTERED, Jefferson, WA
Built 1966 Load: 40.0 t ADT: 50
NO DATA ENTERED
FairOver: LITTLE NISQUALLY RIVER
12.9 MILES WEST OF HWY 7, Lewis, WA
Built 1974 Load: 40.0 t ADT: 30
NO DATA ENTERED
FairOver: QUARTZ CREEK
16.9 MILES EAST OF JCT. R, Skamania, WA
Built 1969 Load: 40.0 t ADT: 99
NO DATA ENTERED
FairOver: TWIN FALLS CREEK
1.4 MILE NORTH OF TROUT L, Skamania, WA
Built 1964 Load: 40.0 t ADT: 179
NO DATA ENTERED
FairOver: GREEN RIVER
1 MILE SOUTH OF HWY 112 J, Skamania, WA
Built 1971 Load: 40.0 t ADT: 20
NO DATA ENTERED
FairOver: SOUTH FORK DEADMAN CREEK
NO DATA ENTERED, Ferry, WA
Built 1975 Load: 40.2 t ADT: 1
FERRY TRAFFIC
FairOver: PUGET SOUND @ SEATTLE
W END YESLER WAY, King, WA
Built 2019 Load: 40.2 t ADT: 10,212
NO DATA ENTERED
FairOver: COMPASS CREEK
TAKE HWY. 30 OFF HWY 14;, Skamania, WA
Built 2010 Load: 40.2 t ADT: 50
NE MONEY CREEK RD
FairOver: MONEY CREEK
2.0 MI SOUTH OF SR 2, King, WA
Built 1958 Load: 40.5 t ADT: 30
ILLAHEE ROAD
FairOver: STEELE CREEK
0.05 S JCT BROWNSVILLE HW, Kitsap, WA
Built 1986 Load: 40.5 t ADT: 4,305
FRANK ALBERT RD E
FairOver: UNION PACIFIC RAILROAD
0.3 S JCT 20 ST E, Pierce, WA
Built 1993 Load: 40.5 t ADT: 5,500
VIETNAM VILLAGE RD
FairOver: MUCK CREEK
GRID COORD ET395088, Pierce, WA
Built 1966 Load: 40.5 t ADT: 200
S LAVENTURE RD
FairOver: MADDOX CR
0.5 E JCT I-5, Skagit, WA
Built 2013 Load: 40.5 t ADT: 8,284
VALLEY CHAPEL RD
FairOver: LATAH CREEK
1.5 S ELDER RD., Spokane, WA
Built 1996 Load: 40.5 t ADT: 192
Showing 4,151-4,200 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 |