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
NO DATA ENTERED
GoodOver: EAST CANYON CREEK
25 MILES SOUTHEAST OF JCT, Skamania, WA
Built 2010 Load: 38.9 t ADT: 5
204TH DR SE
GoodOver: STREAM
1.6 NE SR2, Snohomish, WA
Built 2023 Load: 38.9 t ADT: 100
ARGONNE ROAD
GoodOver: SPOKANE RIVER
0.6 N TRENT ROAD, Spokane, WA
Built 2004 Load: 38.9 t ADT: 32,264
MID. FORK MILL CR.
GoodOver: MIDDLE FORK MILL CREEK
2.8 NE SOUTH FORK MILL CR, Stevens, WA
Built 2022 Load: 38.9 t ADT: 8
Gate Rd
GoodOver: Baker Creek
0.52 S. of Mima Creek, Thurston, WA
Built 2021 Load: 38.9 t ADT: 508
SR 542
GoodOver: SLIDE AREA
20.4 E JCT SR 547, Whatcom, WA
Built 1994 Load: 38.9 t ADT: 1,251
LINDSAY RD
GoodOver: SUMAS RIVER
00.5 E FRICK RD, Whatcom, WA
Built 1993 Load: 38.9 t ADT: 263
VAN BELLE RD.
GoodOver: SNIPES CANAL
00.01 E. OF NICHOLS RD., Yakima, WA
Built 2002 Load: 38.9 t ADT: 1,760
N. Front Street
GoodOver: W. MLK Jr. Blvd
.09 mi W of First, Yakima, WA
Built 2014 Load: 38.9 t ADT: 80
Pioneer Way
GoodOver: Cowiche Creek
.04 South of Cowiche Mill, Yakima, WA
Built 2014 Load: 38.9 t ADT: 180
SEARS CREEK
GoodOver: WHITE RIVER
2.5 MI OFF HWY 207, Chelan, WA
Built 1965 Load: 39.0 t ADT: 50
COMPANY CREEK ROAD
GoodOver: STEHEKIN RIVER
1.2 Miles from Maintenanc, Chelan, WA
Built 2001 Load: 39.0 t ADT: 100
SR 500
GoodOver: BN SF RY
14.2 E JCT SR 503, Clark, WA
Built 1968 Load: 39.0 t ADT: 3,680
SR 500
GoodOver: BURNT BRIDGE CREEK
1.2 E JCT I-5, Clark, WA
Built 1982 Load: 39.0 t ADT: 43,050
SR 21
GoodOver: ROOSEVELT LAKE
14.9 N JCT SR 174, Ferry, WA
Built 1982 Load: 39.0 t ADT: 132
I-90
GoodOver: SILICA RD
6.1 E JCT SR 26, Grant, WA
Built 1981 Load: 39.0 t ADT: 7,785
I-90
GoodOver: SILICA RD
6.1 E JCT SR 26, Grant, WA
Built 1982 Load: 39.0 t ADT: 7,785
SR 202
GoodOver: S FK SNOQUALMIE RIVER
8.3 E JCT SR 203, King, WA
Built 1976 Load: 39.0 t ADT: 11,976
SR 18
GoodOver: CAREY CREEK
4.0 E JCT SR 169, King, WA
Built 1995 Load: 39.0 t ADT: 15,143
SE 304TH ST
GoodOver: SOOSETTE CREEK
0.1 E JCT SR 18, King, WA
Built 1997 Load: 39.0 t ADT: 11,963
HOV ON/OFF RAMPS
GoodOver: I-90
1.2 E JCT I-405, King, WA
Built 2006 Load: 39.0 t ADT: 1,266
SE GROUSE RIDGE RD
GoodOver: S FK SNOQUALMIE RIVER
0.4 N I-90, King, WA
Built 1982 Load: 39.0 t ADT: 45
ROAD
GoodOver: MARTIN CREEK
0.1 MI W OF 6710/230 JCT, King, WA
Built 1981 Load: 39.0 t ADT: 5
154TH PLACE SE
GoodOver: CEDAR RIVER
0.1 MILE N OF SR-169, King, WA
Built 2005 Load: 39.0 t ADT: 18,726
ROAD
GoodOver: LOG CREEK
NO DATA ENTERED, Kittitas, WA
Built 1978 Load: 39.0 t ADT: 50
SR 21
GoodOver: ROOSEVELT LAKE
13.7 N JCT SR 174, Lincoln, WA
Built 1982 Load: 39.0 t ADT: 132
NO DATA ENTERED
GoodOver: HAMMA HAMMA RIVER
NO DATA ENTERED, Mason, WA
Built 1968 Load: 39.0 t ADT: 25
NORTH VALLEY ROAD
GoodOver: DOG CREEK
2.9 E JCT 4 & 401, Pacific, WA
Built 1984 Load: 39.0 t ADT: 74
SMITH CREEK RD
GoodOver: SMITH CREEK
4.9 N JCT 101 & 105, Pacific, WA
Built 1993 Load: 39.0 t ADT: 86
SR 16
GoodOver: ROSEDALE ST
3.6 N JCT SR 16 AR, Pierce, WA
Built 1970 Load: 39.0 t ADT: 39,840
SR 161
GoodOver: LITTLE MASHEL RIVER
1.8 N JCT SR 7, Pierce, WA
Built 1986 Load: 39.0 t ADT: 394
SB I-5 TO NB SR 16
GoodOver: S TACOMA WAY/STRR/CENTER
WB NALLEY VALLEY, Pierce, WA
Built 2011 Load: 39.0 t ADT: 39,113
I-5 S-E RAMP
GoodOver: TERRAIN
WB NALLEY VALLEY, Pierce, WA
Built 2011 Load: 39.0 t ADT: 3,842
SR 20
GoodOver: HIGGINS SLOUGH
0.1 E JCT SR 536, Skagit, WA
Built 2007 Load: 39.0 t ADT: 13,243
SR 9
GoodOver: 72ND STREET SE
3.7 N JCT SR 96, Snohomish, WA
Built 1963 Load: 39.0 t ADT: 21,748
I-405
GoodOver: 9TH AVE SE
0.4 N JCT SR 527, Snohomish, WA
Built 1968 Load: 39.0 t ADT: 45,734
HOME ACRES ROAD
GoodOver: DEADWATER SLOUGH
0.1 S US 2, Snohomish, WA
Built 1994 Load: 39.0 t ADT: 1,201
FLORENCE ACRES RD
GoodOver: WOODS CREEK
4.6 NE JCT SR 2, Snohomish, WA
Built 2007 Load: 39.0 t ADT: 2,087
BLACKTAIL MTN ROAD
GoodOver: LITTLE PEND OREILLE RVR
SEC 32 T35N R41E, Stevens, WA
Built 2004 Load: 39.0 t ADT: 25
US 395
GoodOver: LITTLE PEND OREILLE R
20.9 N JCT SR 231, Stevens, WA
Built 1980 Load: 39.0 t ADT: 6,684
MUD BAY ROAD
GoodOver: MUD BAY
0.20 E Jct SR101, Thurston, WA
Built 1978 Load: 39.0 t ADT: 12,249
BARBOUILLAT STREET
GoodOver: OVERFLOW
0.5 WEST MIMA ROAD, Thurston, WA
Built 1999 Load: 39.0 t ADT: 50
SR 20
GoodOver: HORSETAIL CREEK
16.7 E SKAGIT CO, Whatcom, WA
Built 1968 Load: 39.0 t ADT: 1,380
SR 539
GoodOver: NOOKSACK RIVER
2.0 N JCT SR 544, Whatcom, WA
Built 2009 Load: 39.0 t ADT: 8,300
SR 539
GoodOver: NOOKSACK R OVERFLOW
2.5 N JCT SR 544, Whatcom, WA
Built 2009 Load: 39.0 t ADT: 16,600
ROAD #31
GoodOver: CANYON CREEK
7.5 MILES FROM SH 542, Whatcom, WA
Built 1996 Load: 39.0 t ADT: 50
US 195
GoodOver: BN RY
0.2 N JCT SR 271, Whitman, WA
Built 1975 Load: 39.0 t ADT: 3,874
LITTLE NACHES
GoodOver: LITTLE NACHES RIVER
BELOW TIMOTHY MEADOWS, Yakima, WA
Built 1967 Load: 39.0 t ADT: 80
DYCK RD
GoodOver: ROCKY COULEE
02.02 MI S DAVIS, Adams, WA
Built 2002 Load: 39.2 t ADT: 7
ROAD
GoodOver: LITTLE TUCANNON RIVER
JUNC RD 47/4620, Columbia, WA
Built 2010 Load: 39.2 t ADT: 50
Showing 6,901-6,950 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 |