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-90
UnknownOver: SR 18
12.2 E JCT SR 169, King, WA
Built 1963 ADT: 21,327
61ST AVE S
UnknownOver: I-405
0.3 N JCT I-5, King, WA
Built 1962 ADT: 108,408
SR 99
UnknownOver: SR 518 RIVERTON HTS
1.9 E JCT SR 509, King, WA
Built 1962 ADT: 51,803
I-5
UnknownOver: SR 104 / NE 205TH ST
1.3 E JCT SR 99, King, WA
Built 1963 ADT: 43,749
I-5
UnknownOver: SR 104 / NE 205TH ST
1.3 E JCT SR 99, King, WA
Built 1963 ADT: 43,749
I-5 NBCD
UnknownOver: SR 104
1.3 E JCT SR 99, King, WA
Built 1963 ADT: 43,749
MILITARY RD
UnknownOver: I-5
2.0 N JCT SR 516, King, WA
Built 1963 ADT: 209,875
S 208TH ST
UnknownOver: SR 167 & SPRINGBROOK CR
3.0 N JCT SR 516, King, WA
Built 1963 ADT: 109,316
S 180TH ST
UnknownOver: SR 167
4.8 N JCT SR 516, King, WA
Built 1964 ADT: 106,515
S 216TH ST
UnknownOver: I-5
1.1 N JCT SR 516, King, WA
Built 1963 ADT: 209,875
I-5
UnknownOver: ORILLIA RD/S 188TH ST
3.1 N JCT SR 516, King, WA
Built 1963 ADT: 29,582
I-5
UnknownOver: ORILLIA RD/S 188TH ST
3.1 N JCT SR 516, King, WA
Built 1963 ADT: 29,582
I-5 NB
UnknownOver: JAMES, CHERRY, REVERS
0.8 N JCT I-90, King, WA
Built 1964 ADT: 18,166
MADISON ST
UnknownOver: I-5
1.2 N JCT I-90, King, WA
Built 1964 ADT: 117,150
SPRING ST
UnknownOver: I-5
1.2 N JCT I-90, King, WA
Built 1964 ADT: 117,150
SENECA ST
UnknownOver: I-5
1.2 N JCT I-90, King, WA
Built 1964 ADT: 172,787
N-SENECA RAMP
UnknownOver: I-5 SB & CITY STREETS
1.2 N JCT I-90, King, WA
Built 1964 ADT: 86,394
SPRING ST RAMP
UnknownOver: I-5 SB COL
1.2 N JCT I-90, King, WA
Built 1964 ADT: 14,608
5TH AVE NE
UnknownOver: I-5, I-5 EXPRESS LANES
2.2 N JCT SR 520, King, WA
Built 1964 ADT: 165,473
NE 80TH ST
UnknownOver: I-5, I-5 EXP LNS, RAMPS
0.5 N JCT SR 522, King, WA
Built 1964 ADT: 149,488
NE 92ND ST
UnknownOver: I-5
0.5 N JCT SR 522, King, WA
Built 1964 ADT: 170,579
N-85TH RAMP
UnknownOver: I-5
0.5 N JCT SR 522, King, WA
Built 1964 ADT: 149,488
N 85TH TO SB I-5
UnknownOver: I-5 SB RAMP TO NE 80TH
0.5 N JCT SR 522, King, WA
Built 1964 ADT: 8,502
I-5
UnknownOver: N-103RD EXP RAMP
5.5 N JCT I-90, King, WA
Built 1964 ADT: 3,206
I-5
UnknownOver: SBCD NE110TH ST
2.0 N JCT SR 522, King, WA
Built 1964 ADT: 46,050
NP RY
UnknownOver: STATE ROUTE 202
0.3 E JCT SR 522, King, WA
Built 1963 ADT: 39,506
I-405
UnknownOver: SR 181
6.1 N JCT SR 516, King, WA
Built 1964 ADT: 32,968
NE117TH ST
UnknownOver: I-5
2.4 N JCT SR 522, King, WA
Built 1964 ADT: 204,832
NE 130TH ST
UnknownOver: I-5
3.1 N JCT SR 522, King, WA
Built 1964 ADT: 190,254
SR 523 / NE 145TH
UnknownOver: I-5
3.8 N JCT SR 522, King, WA
Built 1964 ADT: 166,801
I-5
UnknownOver: NE 175TH ST
1.6 N JCT SR 523, King, WA
Built 1964 ADT: 166,442
I-5
UnknownOver: NE 175TH ST
1.6 N JCT SR 523, King, WA
Built 1964 ADT: 166,442
NE 185TH ST
UnknownOver: I-5
2.6 N JCT SR 523, King, WA
Built 1964 ADT: 180,670
NE 195TH ST PED
UnknownOver: I-5, RAMPS
2.6 N JCT SR 523, King, WA
Built 1964 ADT: 155,748
I-405
UnknownOver: SR 167
6.7 N JCT SR 516, King, WA
Built 1964 ADT: 91,692
I-405
UnknownOver: SR 515
6.9 N JCT SR 516, King, WA
Built 1964 ADT: 46,318
S178TH ST
UnknownOver: I-5
4.0 N JCT SR 516, King, WA
Built 1964 ADT: 224,903
KLICKITAT DR
UnknownOver: I-5
5.0 N JCT SR 516, King, WA
Built 1964 ADT: 112,452
I-5
UnknownOver: I-405 NB / SR 518 EB
0.1 N JCT I-5, King, WA
Built 1966 ADT: 36,699
I-5
UnknownOver: I-405 NB / SR 518 EB
JCT I-5, King, WA
Built 1966 ADT: 36,699
I-5
UnknownOver: E-N RAMP
1.1 E JCT SR 99, King, WA
Built 1965 ADT: 14,537
N-W RAMP
UnknownOver: I-405, E-N, S-N RAMPS
0.1 N JCT I-5, King, WA
Built 1966 ADT: 54,204
RAMP I-5 TO I-405
UnknownOver: RAMP SR 518 TO I-5
1.1 E JCT SR 99, King, WA
Built 1966 ADT: 14,537
I-405
UnknownOver: I-5
5.2 N JCT SR 516, King, WA
Built 1965 ADT: 224,903
51ST AVE S
UnknownOver: SR 518
1.0 E JCT SR 99, King, WA
Built 1966 ADT: 109,319
8TH AVE
UnknownOver: I-5
1.2 N JCT I-90, King, WA
Built 1964 ADT: 172,787
UNIV-N RAMP
UnknownOver: I-5
1.2 N JCT I-90, King, WA
Built 1965 ADT: 86,394
PIKE ST
UnknownOver: I-5
1.5 N JCT I-90, King, WA
Built 1964 ADT: 195,009
PINE ST-BOREN AVE
UnknownOver: I-5
1.6 N JCT I-90, King, WA
Built 1965 ADT: 195,009
MILITARY ROAD
UnknownOver: S-W RAMP TO S 188TH ST
3.3 N JCT SR 516, King, WA
Built 1964 ADT: 3,684
Showing 301-350 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 |