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 2
FairOver: COTTONWOOD CREEK
0.3 E JCT SR 28, Lincoln, WA
Built 1960 Load: 74.4 t ADT: 5,894
SE 296TH PL
FairOver: OLSEN CREEK
.02 MI E OF 118TH AVE SE, King, WA
Built 2018 Load: 80.4 t ADT: 200
SR 14
FairOver: ROCK CREEK
19.6 E JCT US 97, Klickitat, WA
Built 1962 Load: 81.6 t ADT: 1,229
AVONDALE ROAD NE
FairOver: COTTAGE LAKE CREEK
1.8 MI E OF SR-202, King, WA
Built 1994 Load: 82.0 t ADT: 25,321
SPRAGUE AVENUE
FairOver: SPRAGUE WAY SOUTHBOUND
00.69 EAST SR 395, Spokane, WA
Built 1954 Load: 82.3 t ADT: 8,658
SR 503 SPUR
FairOver: PANAMAKER CREEK
5.8 N JCT SR 503, Cowlitz, WA
Built 1961 Load: 82.5 t ADT: 932
SR 520
FairOver: 120TH AVE NE
0.3 E JCT I-405, King, WA
Built 1971 Load: 82.5 t ADT: 43,146
RW JOHNSON RD
FairOver: BLACK LAKE DRAIN DITCH
0.11 S 21ST AVE, Thurston, WA
Built 2003 Load: 82.9 t ADT: 5,120
SPRAGUE WAY N/B
FairOver: 2ND AVENUE
00.61 E SR 395, Spokane, WA
Built 1953 Load: 84.2 t ADT: 2,646
MONROE ROAD
FairOver: DRAGOON CREEK
0.4 MI W OF HWY 395, Spokane, WA
Built 1963 Load: 84.9 t ADT: 1,728
NO DATA ENTERED
FairOver: SILVER CREEK
NO DATA ENTERED, Clallam, WA
Built 1993 Load: 85.4 t ADT: 25
NOVELTY HILL RD
FairOver: BEAR CREEK
1.0 MI NE OF SR-520, King, WA
Built 1974 Load: 87.1 t ADT: 23,000
CASCADE RIVER RD
FairOver: MARBLE CREEK
8.3 E JCT SR 20, Skagit, WA
Built 1982 Load: 87.8 t ADT: 188
I-5
FairOver: NE 99TH ST
3.2 N JCT SR 500, Clark, WA
Built 1996 Load: 89.8 t ADT: 65,546
SR 504
FairOver: OUTLET CREEK
10.9 E JCT I-5, Cowlitz, WA
Built 1970 Load: 89.8 t ADT: 1,014
I-5 & PACIFIC AVE
FairOver: OSTRANDER CREEK
3.5 N JCT SR 4, Cowlitz, WA
Built 1965 Load: 89.8 t ADT: 57,364
SOUTH TOUTLE RD
FairOver: OUTLET CREEK
0.21 SE SR 504 (MP 10.54), Cowlitz, WA
Built 1950 Load: 89.8 t ADT: 1,388
IRR BIA RTE 26
FairOver: HALL CREEK
15 KM N.E. OF MOCLIPS, Grays Harbor, WA
Built 1994 Load: 89.8 t ADT: 365
WYNOOCHE VALLEY RD
FairOver: (UNNAMED TRIBUTARY)
24.23 MILES N. SR12, Grays Harbor, WA
Built 2003 Load: 89.8 t ADT: 217
US 101
FairOver: CEDAR CR
13.4 N GRAYS HBR CO, Jefferson, WA
Built 1931 Load: 89.8 t ADT: 1,165
S 160TH ST
FairOver: AIRPORT EXPRESSWAY
0.25 MI S OF SR 518, King, WA
Built 1970 Load: 89.8 t ADT: 14,500
3RD ST SW
FairOver: C ST SW
0.3 W OF SR- 18, King, WA
Built 2002 Load: 89.8 t ADT: 9,500
I-90
FairOver: COAL CREEK
2.0 E KING CO, Kittitas, WA
Built 1950 Load: 89.8 t ADT: 34,348
SR 105
FairOver: SLOUGH
7.6 N JCT US 101, Pacific, WA
Built 1958 Load: 89.8 t ADT: 1,095
I-5
FairOver: I-5 DRAINAGE
2.6 N JCT 534, Skagit, WA
Built 1972 Load: 89.8 t ADT: 67,923
CONCRETE-SAUK VLY
FairOver: MILLER CREEK
9 MI SE OF SR20, Skagit, WA
Built 1999 Load: 89.8 t ADT: 158
I-90
FairOver: SPOKANE BRIDGE RD
9.6 E JCT SR 27, Spokane, WA
Built 1972 Load: 89.8 t ADT: 29,778
US 101
FairOver: BLACK LAKE BLVD
3.9 S JCT SR 8, Thurston, WA
Built 1995 Load: 89.8 t ADT: 45,840
I-82
FairOver: CANAL
0.8 E JCT SR 22, Yakima, WA
Built 1980 Load: 89.8 t ADT: 25,858
COUNTY ROAD
FairOver: ELTOPIA BRANCH CANAL
2.91 JCT R SR-395, Franklin, WA
Built 1970 Load: 90.1 t ADT: 200
ROAD
FairOver: GREENWATER RIVER
0.3 MI N OF 70/7030 JCT, Pierce, WA
Built 1989 Load: 90.8 t ADT: 49
MISSION AVENUE
FairOver: SPOKANE RIVER
1.13 E OF SR395, Spokane, WA
Built 1909 Load: 96.6 t ADT: 19,319
HALL CREEK RD
FairOver: HALL CREEK
12.65 W LYNX CRK RD, Ferry, WA
Built 1999 Load: 96.9 t ADT: 10
HALL CREEK RD
FairOver: HALL CREEK
12.92 W LYNCRK RD, Ferry, WA
Built 1999 Load: 96.9 t ADT: 10
QUINAULT S SHORE
FairOver: EWELL CREEK
4.7 NE JCT SR101, Grays Harbor, WA
Built 1965 Load: 96.9 t ADT: 380
SE 400TH ST
FairOver: NEWAUKUM CREEK
1 MI E 212TH AVE SE, King, WA
Built 1927 Load: 96.9 t ADT: 3,694
384TH AVE SE
FairOver: KIMBALL CREEK
1.0 MI N OF I-90, King, WA
Built 1971 Load: 96.9 t ADT: 2,930
OAKESDALE AVE SW
FairOver: SPRINGBROOK CREEK
0.25 MI N OF SW 43 ST, King, WA
Built 1979 Load: 96.9 t ADT: 9,325
STEVENS ROAD
FairOver: FLOOD CHANNEL
3.32 S OF PARKE CR, Kittitas, WA
Built 1974 Load: 96.9 t ADT: 62
UMPTANUM ROAD
FairOver: ANDERSON SLOUGH
0.1 W. ANDERSON RD., Kittitas, WA
Built 1982 Load: 96.9 t ADT: 6,083
US 101
FairOver: CHINOOK R
6.6 N JCT SR 401, Pacific, WA
Built 1927 Load: 96.9 t ADT: 7,107
CORNWALL AVENUE
FairOver: WHATCOM CREEK
0.07 N JCT FLORA/YORK, Whatcom, WA
Built 1968 Load: 96.9 t ADT: 8,000
OLD SAMISH HWY
FairOver: CHUCKANUT CREEK
1.5 E MI CHUCKANUT, Whatcom, WA
Built 1960 Load: 96.9 t ADT: 600
NO DATA ENTERED
FairOver: SADIE CREEK
NO DATA ENTERED, Clallam, WA
Built 1992 Load: 97.2 t ADT: 50
NO DATA ENTERED
FairOver: ROCK CK.
NO DATA ENTERED, Mason, WA
Built 1975 Load: 97.2 t ADT: 50
NO DATA ENTERED
FairOver: SNOW CREEK
NO DATA ENTERED, Mason, WA
Built 2010 Load: 97.2 t ADT: 50
SPILLWAY BRIDGE
FairOver: SPILLWAY CHANNEL
LOWER MONUMENTAL DAM, Walla Walla, WA
Built 1966 Load: 97.2 t ADT: 50
NAV LOCK BRIDGE
FairOver: NAV LOCK CHANNEL
LOWER MONUMENTAL DAM, Walla Walla, WA
Built 1966 Load: 97.2 t ADT: 50
NISQUALLY ENTRANCE
FairOver: KAUTZ CREEK
3.5 MILES EAST OF NISQUAL, Pierce, WA
Built 2007 Load: 99.9 t ADT: 1,576
25TH AVE WEST
FairOver: POWDER MILL GULCH
South of 56th, Snohomish, WA
Built 1993 Load: 99.9 t ADT: 300
Showing 4,601-4,650 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 |