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
SR 410
FairOver: WHITE R (STUCK R)
0.2 E JCT SR 167, Pierce, WA
Built 1971 Load: 53.5 t ADT: 42,189
US 101
FairOver: PERCIVAL CR & BNRR
4.5 S JCT SR 8, Thurston, WA
Built 1995 Load: 53.5 t ADT: 37,225
CASE ROAD
FairOver: BEAVER CREEK
0.5 m S Maytown Rd, Thurston, WA
Built 1970 Load: 53.5 t ADT: 3,040
ROAD
FairOver: SNOW CREEK
0.1MI W OF RD 54/50 JCT, King, WA
Built 1979 Load: 53.6 t ADT: 33
NE LEHTO RD
FairOver: SALMON CREEK
0.2SE NE RISTO RD, Clark, WA
Built 1972 Load: 53.8 t ADT: 153
MAPLE CREEK ROAD
FairOver: OWL CREEK
9.9E JCT SR101, Jefferson, WA
Built 1989 Load: 54.1 t ADT: 10
US 12
FairOver: PORTER CREEK
6.1 E JCT SR 8, Grays Harbor, WA
Built 1937 Load: 54.4 t ADT: 5,708
GRAVES CREEK ROAD
FairOver: CANNINGS CREEK
12.8 MI. NE OF JCT. HWY., Jefferson, WA
Built 1981 Load: 54.4 t ADT: 100
I-405
FairOver: NE 3RD ST
0.2 N JCT SR 169, King, WA
Built 1993 Load: 54.4 t ADT: 128,245
SYCAMORE DR S.E.
FairOver: ISSAQUAH CK.
0.2 MI E OF ISS-HOBART RD, King, WA
Built 1968 Load: 54.4 t ADT: 550
3RD ST SW
FairOver: BNSF RR
0.3 MILES WEST OF SR 18, King, WA
Built 2002 Load: 54.4 t ADT: 22,000
LUNDEEN PARK WAY
FairOver: TRIB WEISER CR
0.1 N JCT SR204, Snohomish, WA
Built 2005 Load: 54.4 t ADT: 4,115
PENINSULA DRIVE
FairOver: ST.CLAIR LAKE
.1 m NW St Cl Dr, Thurston, WA
Built 1963 Load: 54.4 t ADT: 329
RICH ROAD
FairOver: SPURGEON CREEK
0.61 EAST OF OLD HWY 99, Thurston, WA
Built 2012 Load: 54.4 t ADT: 3,843
ROAD
FairOver: CABIN CREEK
NO DATA ENTERED, Kittitas, WA
Built 1964 Load: 54.5 t ADT: 75
ROAD
FairOver: PROCTOR CREEK
3.5 MI S OF HWY 2/62 JCT, Snohomish, WA
Built 1981 Load: 54.5 t ADT: 8
SUNSET BOULEVARD
FairOver: INLAND EMPIRE WAY
US 2 AT SR195, Spokane, WA
Built 1936 Load: 54.8 t ADT: 8,174
NO DATA ENTERED
FairOver: TRIB. TO CANYON RIVER
NO DATA ENTERED, Mason, WA
Built 2004 Load: 54.9 t ADT: 50
COUNTY ROAD 1000
FairOver: Cottonwood Creek
2.25 E. Cougar Cr. Rd., Asotin, WA
Built 2021 Load: 55.1 t ADT: 78
SR 20
FairOver: OKANOGAN RIVER
0.2 E JCT SR 215, Okanogan, WA
Built 1959 Load: 55.3 t ADT: 2,393
SR 92
FairOver: CENTENNIAL TRAIL
2.4 E JCT SR 9, Snohomish, WA
Built 1996 Load: 55.3 t ADT: 12,468
OLD HWY 99 SW
FairOver: SCATTER CREEK
3. NE JCT I5, Thurston, WA
Built 1923 Load: 55.3 t ADT: 7,789
NO DATA ENTERED
FairOver: CLEAR CREEK
5.7 MILES NORTH OF MT. ST, Skamania, WA
Built 1989 Load: 55.4 t ADT: 50
NO DATA ENTERED
FairOver: MARBLE CREEK
8 MILES EAST OF CNTY LINE, Skamania, WA
Built 1998 Load: 55.4 t ADT: 650
NO DATA ENTERED
FairOver: CONN CREEK
NO DATA ENTERED, Snohomish, WA
Built 2010 Load: 55.4 t ADT: 50
NO DATA ENTERED
FairOver: BLACK CREEK
NO DATA ENTERED, Snohomish, WA
Built 2010 Load: 55.4 t ADT: 50
SPRAGUE AVENUE
FairOver: ERIE STREET
00.70 EAST SR 395, Spokane, WA
Built 1954 Load: 55.4 t ADT: 11,079
ROAD
FairOver: MOROVITZ CREEK
NO DATA ENTERED, Whatcom, WA
Built 2009 Load: 55.4 t ADT: 50
ROAD
FairOver: ANDERSON CREEK
NO DATA ENTERED, Whatcom, WA
Built 2007 Load: 55.4 t ADT: 50
NO DATA ENTERED
FairOver: QUARTZ CREEK 2
NO DATA ENTERED, Skamania, WA
Built 1998 Load: 55.7 t ADT: 2
I-5
FairOver: LAKEWAY DRIVE
2.2 N JCT SR 11, Whatcom, WA
Built 1958 Load: 56.1 t ADT: 31,011
S-W RAMP
FairOver: W VALLEY HWY S, MILL CR
2.8 N PIERCE CO, King, WA
Built 1973 Load: 56.2 t ADT: 19,030
SR 99 W-S RAMP
FairOver: BNRR, CITY STREET
0.4 N JCT SR 509, King, WA
Built 1996 Load: 56.2 t ADT: 16,753
US 2
FairOver: CREEK
13.3 E SNOHOMISH CO, King, WA
Built 1998 Load: 56.2 t ADT: 4,915
OLD HWY 99
FairOver: OVERFLOW CHANNEL
1.0 N JCT COOK RD., Skagit, WA
Built 2006 Load: 56.2 t ADT: 4,372
NO DATA ENTERED
FairOver: BOCKMAN CREEK
NO DATA ENTERED, Clallam, WA
Built 1987 Load: 56.3 t ADT: 35
I-5
FairOver: LAKEWAY DRIVE
2.2 N JCT SR 11, Whatcom, WA
Built 1958 Load: 56.4 t ADT: 31,011
PARK ST
FairOver: MILL CREEK
PARK AT MILL CR, Walla Walla, WA
Built 2007 Load: 56.7 t ADT: 4,169
TAUSCHER ROAD
FairOver: MID FK NEWAUKUM RIVER
2.0 E FOREST, Lewis, WA
Built 1951 Load: 57.0 t ADT: 39
I-90
FairOver: W SNOQUALMIE IC
1.7 E JCT SR 18, King, WA
Built 1976 Load: 57.7 t ADT: 25,826
SR 18
FairOver: BNSF RR SPUR
0.8 E JCT SR 164, King, WA
Built 1986 Load: 57.7 t ADT: 30,974
US 101
FairOver: MORSE CREEK
5.9 E JCT SR 117, Clallam, WA
Built 1968 Load: 58.0 t ADT: 25,134
SR 105
FairOver: STAFFORD CR
12.1 N JCT SR 105 SP, Grays Harbor, WA
Built 1945 Load: 58.0 t ADT: 6,067
NORTH FORK ROAD
FairOver: N FORK NEWAUKUM R
0.7 NE JCT 94000, Lewis, WA
Built 2000 Load: 58.0 t ADT: 1,259
US 101
FairOver: JORGENSON SLOUGH
5.5 N JCT SR 4, Pacific, WA
Built 1939 Load: 58.0 t ADT: 2,728
I-705 N-N RAMP
FairOver: TERRAIN
JCT SR 509, Pierce, WA
Built 1996 Load: 58.0 t ADT: 10,881
CONRAD ROAD
FairOver: SWIFT CREEK
0.2 E JCT SR 20, Skagit, WA
Built 1981 Load: 58.0 t ADT: 23
MCFARLANE ROAD
FairOver: N FORK DEEP CREEK
0.3 E S. COULEE-HITE RD, Spokane, WA
Built 1961 Load: 58.0 t ADT: 2
US 101
FairOver: TIDE SLOUGH
6.7 N JCT SR 4, Pacific, WA
Built 1939 Load: 59.0 t ADT: 2,728
RAYMD/SOUTHBEND RD
FairOver: SKIDMORE SLOUGH
0.5 SE SR101 INTERSECTION, Pacific, WA
Built 2010 Load: 59.0 t ADT: 218
Showing 4,501-4,550 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 |