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
BNSFRR
UnknownOver: STEVENS ST
00.05 NORTH 2ND AVE, Spokane, WA
Built 1916 ADT: 10,900
BNSFRR
UnknownOver: MAPLE ST, 2ND AVE
AT 2ND AVENUE, Spokane, WA
Built 1916 ADT: 21,869
BNSFRR
UnknownOver: MONROE ST
00.05 NORTH 2ND AVE, Spokane, WA
Built 1915 ADT: 14,200
BNSFRR
UnknownOver: WALL ST
00.05 NORTH 2ND AVE, Spokane, WA
Built 1915 ADT: 1,700
BNSFRR
UnknownOver: WASHINGTON ST
00.08 NORTH 2ND AVE, Spokane, WA
Built 1915 ADT: 12,500
UPRR
UnknownOver: NAPA ST
00.01 SOUTH SR 290, Spokane, WA
Built 1916 ADT: 7,002
BNSFRR
UnknownOver: 3RD AVE
00.17 NORTH I-90, Spokane, WA
Built 1916 ADT: 8,403
BNSFRR
UnknownOver: GREENE ST
01.03 N SR 290, Spokane, WA
Built 1941 ADT: 42,014
GREENE STREET
UnknownOver: SPOKANE RIV,UPRIVER DR
1.65 N OF I-90, Spokane, WA
Built 1955 ADT: 1,800
GARAGE ENTRANCE
UnknownOver: WELLESLEY AVENUE
Wellesley and Addison, Spokane, WA
Built 1992 ADT: 11,200
BNSF RR TRACKS
UnknownOver: ARGONNE RD.
0.05 MI S OF TRENT, Spokane, WA
Built 1996 ADT: 36,800
BNSF RR TRACKS
UnknownOver: STARR ROAD
170 FT S OF SR 290, Spokane, WA
Built 1997 ADT: 1,742
BNSF RR
UnknownOver: WOOLARD ROAD
0.8 MI W OF HIGHWAY 2, Spokane, WA
Built 2019 ADT: 1,099
RAILROAD
UnknownOver: STATE ROUTE 25
57.5 N LINCOLN CO, Stevens, WA
Built 1940 ADT: 2,351
GN RY
UnknownOver: STATE ROUTE 25
5.7 N JCT US 395, Stevens, WA
Built 1941 ADT: 655
GN RY
UnknownOver: STATE ROUTE 231
0.7 N JCT SR 292, Stevens, WA
Built 1940 ADT: 2,072
GN RY
UnknownOver: STATE ROUTE 395
3.7 N SPOKANE CO, Stevens, WA
Built 1938 ADT: 9,937
GN RY
UnknownOver: US ROUTE 395
9.0 N JCT SR 20, Stevens, WA
Built 1941 ADT: 7,944
GN RY LOON LAK
UnknownOver: STATE ROUTE 292
4.5 E JCT SR 231, Stevens, WA
Built 1951 ADT: 2,428
NP RY
UnknownOver: STATE ROUTE 507
8.2 N LEWIS CO, Thurston, WA
Built 1935 ADT: 9,082
CMSTPP RR
UnknownOver: STATE ROUTE 507
18.0 N LEWIS CO, Thurston, WA
Built 1936 ADT: 8,095
CUSTER WAY
UnknownOver: I-5, DESCHUTES RIVER
4.7 N JCT SR 121, Thurston, WA
Built 1956 ADT: 99,802
I-5
UnknownOver: DESCHUTES PARKWAY
5.0 N JCT SR 121, Thurston, WA
Built 1956 ADT: 16,138
CAPITOL BLVD
UnknownOver: I-5, RAMP
0.7 N JCT US 101, Thurston, WA
Built 1956 ADT: 99,802
I-5 RAMPS
UnknownOver: HENDERSON BLVD, UPRR
1.2 N JCT US 101, Thurston, WA
Built 1957 ADT: 16,866
I-5 S-W RAMP
UnknownOver: HENDERSON BLVD, RR
1.2 N JCT US 101, Thurston, WA
Built 1957 ADT: 16,866
I-5
UnknownOver: HENDERSON BLVD
1.2 N JCT US 101, Thurston, WA
Built 1957 ADT: 10,302
DELPHI RD
UnknownOver: US 101
1.8 S JCT SR 8, Thurston, WA
Built 1958 ADT: 41,873
I-5
UnknownOver: PACIFIC AVE
3.4 N JCT US 101, Thurston, WA
Built 1957 ADT: 20,913
SR 8
UnknownOver: US 101
4.6 S MASON CO, Thurston, WA
Built 1958 ADT: 16,101
SR 8
UnknownOver: US 101
4.6 S MASON CO, Thurston, WA
Built 1958 ADT: 16,101
I-5
UnknownOver: MARTIN WAY
5.0 N JCT US 101, Thurston, WA
Built 1967 ADT: 48,714
I-5
UnknownOver: MARTIN WAY
5.0 N JCT US 101, Thurston, WA
Built 1967 ADT: 48,714
CARPENTER RD
UnknownOver: I-5
6.4 N JCT US 101, Thurston, WA
Built 1967 ADT: 113,497
MERIDIAN RD
UnknownOver: I-5
1.2 N JCT SR 510, Thurston, WA
Built 1968 ADT: 99,770
I-5
UnknownOver: MCALLISTER CR
2.2 N JCT SR 510, Thurston, WA
Built 1968 ADT: 1,912
I-5
UnknownOver: MCALLISTER CREEK
2.2 N JCT SR 510, Thurston, WA
Built 1968 ADT: 1,912
I-5 S-E RAMP
UnknownOver: I-5 MAINLINE
2.4 N JCT SR 510, Thurston, WA
Built 1968 ADT: 96,338
216TH AVE SW
UnknownOver: I-5, RR
0.8 N LEWIS CO, Thurston, WA
Built 1968 ADT: 69,601
183RD AVE SW
UnknownOver: I-5
1.5 N JCT US 12, Thurston, WA
Built 1968 ADT: 66,693
113TH AVE SW
UnknownOver: I-5
2.0 N JCT SR 121, Thurston, WA
Built 1968 ADT: 68,115
SR 121 / 93RD AVE
UnknownOver: I-5
JCT SR 121, Thurston, WA
Built 1968 ADT: 64,115
EVERGREEN PARKWAY
UnknownOver: US 101
2.4 S JCT SR 8, Thurston, WA
Built 1975 ADT: 41,873
COOPER PT RD
UnknownOver: US 101
5.0 S JCT SR 8, Thurston, WA
Built 1976 ADT: 71,170
2nd AVE SW
UnknownOver: US 101
1.2 S JCT SR 8, Thurston, WA
Built 1976 ADT: 40,428
BOULEVARD RD
UnknownOver: I-5
2.6 N JCT US 101, Thurston, WA
Built 1984 ADT: 136,911
14TH AVE
UnknownOver: I-5
1.2 N JCT US 101, Thurston, WA
Built 1986 ADT: 137,442
I-5 ON RAMP
UnknownOver: HENDERSON BLVD
1.2 N JCT US 101, Thurston, WA
Built 1986 ADT: 10,302
PLUM ST-N RAMP
UnknownOver: I-5
1.2 N JCT US 101, Thurston, WA
Built 1986 ADT: 118,213
SLEATER-KINNEY RD
UnknownOver: I-5
4.3 N JCT US 101, Thurston, WA
Built 1987 ADT: 128,811
Showing 1,151-1,200 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 |