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 502
UnknownOver: I-5 & GEE CREEK
4.2 N JCT I-205, Clark, WA
Built 2008 ADT: 98,364
SR 501
UnknownOver: I-5
4.7 N JCT SR 502, Clark, WA
Built 2010 ADT: 88,353
ST JOHNS BLVD
UnknownOver: SR 500
1.1 E JCT I-5, Clark, WA
Built 2012 ADT: 43,050
SR 14
UnknownOver: SR 500 / UNION ST
15.2 E JCT SR 503, Clark, WA
Built 2012 ADT: 2,763
SR 14
UnknownOver: SECOND STREET
0.5 E JCT SR 14, Clark, WA
Built 2012 ADT: 3,083
NE 139TH ST
UnknownOver: I-5 / I-205
5.8 N JCT SR 500, Clark, WA
Built 2014 ADT: 48,312
N-N RAMP
UnknownOver: I-205 SB
6.2 N JCT SR 500, Clark, WA
Built 2014 ADT: 24,156
PED LAND BRIDGE
UnknownOver: SR 14
0.3 E JCT I-5, Clark, WA
Built 2007 ADT: 15,180
NW LA CENTER RD
UnknownOver: I-5
2.6 N JCT SR 501, Clark, WA
Built 2017 ADT: 75,277
NE 142ND AVE PED
UnknownOver: SR 500/PADDEN PARKWAY
1.3 E JCT SR 503, Clark, WA
Built 2001 ADT: 19,320
BN/SF RAILROAD
UnknownOver: WEST EIGHTH STREET
BNRR AT WEST 8TH ST, Clark, WA
Built 1908 ADT: 2,408
BN/SF RR
UnknownOver: COLUMBIA SHORES BLVD
BNRR @ COLUMBIA SHO, Clark, WA
Built 1942 ADT: 1,650
NE 130TH AVENUE
UnknownOver: SR 500/PADDEN PARKWAY
0.6 E JCT SR 503, Clark, WA
Built 2001 ADT: 19,859
WEYERHAEUSER RR
UnknownOver: STATE ROUTE 411
3.4 N JCT SR 432, Cowlitz, WA
Built 1958 ADT: 13,790
SR 4
UnknownOver: COWLITZ R / RR / SR 411
1.8 N JCT SR 432, Cowlitz, WA
Built 1951 ADT: 12,080
SR 432
UnknownOver: I-5
15.9 N JCT SR 503, Cowlitz, WA
Built 1959 ADT: 46,604
I-5 N-W RAMP
UnknownOver: SR 432 E-S RAMP
2.7 E JCT SR 411, Cowlitz, WA
Built 1959 ADT: 2,536
SR 432
UnknownOver: 3RD AVE / SR 411
JCT SR 432, Cowlitz, WA
Built 1961 ADT: 17,087
I-5
UnknownOver: SR 503
23.1 N JCT SR 503 SPUR, Cowlitz, WA
Built 1963 ADT: 18,958
I-5
UnknownOver: SR 503
23.1 N JCT SR 503 SPUR, Cowlitz, WA
Built 1963 ADT: 18,958
OAK STREET
UnknownOver: I-5
9.6 N JCT SR 503, Cowlitz, WA
Built 1968 ADT: 67,764
OLD PACIFIC HWY N
UnknownOver: I-5
2.8 N JCT SR 504, Cowlitz, WA
Built 1968 ADT: 44,018
KALAMA R RD
UnknownOver: I-5
11.1 N JCT SR 503, Cowlitz, WA
Built 1970 ADT: 70,091
BN RY (NP)
UnknownOver: W-S RAMP TO I-5
1.6 N JCT SR 503, Cowlitz, WA
Built 1972 ADT: 3,563
BNRR
UnknownOver: DIKE ACCESS ROAD
1.6 N JCT SR 503, Cowlitz, WA
Built 1972 ADT: 6,096
I-5
UnknownOver: HUNTINGTON AVE
8.1 N JCT SR 4, Cowlitz, WA
Built 1975 ADT: 2,204
I-5
UnknownOver: HUNTINGTON AVE
8.1 N JCT SR 4, Cowlitz, WA
Built 1975 ADT: 2,204
POWELL RD
UnknownOver: I-5
9.3 N JCT SR 4, Cowlitz, WA
Built 1975 ADT: 51,651
SR 504
UnknownOver: I-5
10.0 N JCT SR 4, Cowlitz, WA
Built 1975 ADT: 41,919
LEXINGTON BR DR
UnknownOver: I-5
2.8 N JCT SR 4, Cowlitz, WA
Built 1975 ADT: 53,311
PLEASANT HILL RD
UnknownOver: I-5
3.3 N JCT SR 4, Cowlitz, WA
Built 1975 ADT: 57,364
HEADQUARTERS RD
UnknownOver: I-5
6.3 N JCT SR 4, Cowlitz, WA
Built 1975 ADT: 55,519
SR 432
UnknownOver: SR 411/3RD AVE
JCT SR 432, Cowlitz, WA
Built 1975 ADT: 17,087
I-5
UnknownOver: KELSO AVE (OLD SR 431)
0.9 N JCT SR 4, Cowlitz, WA
Built 1979 ADT: 4,172
I-5
UnknownOver: KELSO AVE (OLD SR 431)
0.9 N JCT SR 4, Cowlitz, WA
Built 1980 ADT: 4,172
GRADE ST
UnknownOver: I-5
2.2 N JCT SR 432, Cowlitz, WA
Built 1979 ADT: 57,306
I-5
UnknownOver: ALLEN ST / SR 4
1.3 E JCT SR 411 SP, Cowlitz, WA
Built 1981 ADT: 16,067
I-5
UnknownOver: ALLEN ST/SR 4
1.3 E JCT SR 411 SP, Cowlitz, WA
Built 1980 ADT: 16,067
BRYNION ST
UnknownOver: I-5
0.6 N JCT SR 4, Cowlitz, WA
Built 1980 ADT: 55,996
SR 504
UnknownOver: SR 504 TURNAROUND
22.2 E JCT SR 504 SP, Cowlitz, WA
Built 1992 ADT: 586
S-W RAMP
UnknownOver: W-W RAMP
JCT I-5, Cowlitz, WA
Built 2011 ADT: 1,751
SR 432 E-S RAMP
UnknownOver: SR 432 E-E RAMP
JCT I-5, Cowlitz, WA
Built 2011 ADT: 2,007
LOGTRUCK XING
UnknownOver: SOUTH TOUTLE ROAD
2.71S SPIRIT LK HW, Cowlitz, WA
Built 1900 ADT: 800
RR GRADE CROSSING
UnknownOver: SOUTH TOUTLE ROAD
2.74(S)SPIRIT LK H, Cowlitz, WA
Built 1900 ADT: 800
RR GRADE XING
UnknownOver: ALPHA DRIVE
.02 W SR 411, Cowlitz, WA
Built 1900 ADT: 1,915
RR GRADE XING
UnknownOver: NEVADA DRIVE
.01 W SR 411, Cowlitz, WA
Built 1900 ADT: 664
SR 285
UnknownOver: COLUMBIA R GN RY
4.0 E JCT US 2, Douglas, WA
Built 1950 ADT: 5,882
SR 28
UnknownOver: SR 285 S-W RAMP
4.0 E JCT US 2, Douglas, WA
Built 1950 ADT: 6,105
GN RY
UnknownOver: US ROUTE 395
15.6 N JCT SR 20, Ferry, WA
Built 1932 ADT: 712
UP RR
UnknownOver: STATE ROUTE 261
0.7 N COLUMBIA CO, Franklin, WA
Built 1915 ADT: 413
Showing 151-200 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 |