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
FRIDAY CREEK ROAD
FairOver: FRIDAY CREEK
0.45 N JCT OLD HWY 99 N, Skagit, WA
Built 1962 Load: 32.7 t ADT: 165
MILLTOWN RD
FairOver: BIG DITCH
0.02 E JCT SR 530, Skagit, WA
Built 1957 Load: 32.7 t ADT: 413
HEMLICK ROAD
FairOver: RED CREEK
1.1 N JCT SR 20, Skagit, WA
Built 2007 Load: 32.7 t ADT: 642
NO DATA ENTERED
FairOver: CAT CREEK
T10N, R9E, SEC12, NE 1/4, Skamania, WA
Built 2000 Load: 32.7 t ADT: 50
I-5
FairOver: PORTAGE CREEK
1.9 N JCT SR 531, Snohomish, WA
Built 1957 Load: 32.7 t ADT: 45,883
SR 532
FairOver: FLORENCE RD BNSF RR
2.1 E SNOHOMISH CO, Snohomish, WA
Built 1960 Load: 32.7 t ADT: 18,750
US 2
FairOver: W-N RAMP EVERETT AVE
JCT I-5, Snohomish, WA
Built 1966 Load: 32.7 t ADT: 8,363
SB I-5 RAMP
FairOver: DETENTION VAULT
0.4 N JCT SR 524, Snohomish, WA
Built 2012 Load: 32.7 t ADT: 21,538
HIDDEN VALLEY RD
FairOver: PURDY CREEK
6.8 SE JCT SR 92, Snohomish, WA
Built 1980 Load: 32.7 t ADT: 100
MOUNTAIN LOOP HWY.
FairOver: TWENTYTWO CREEK
12.8 E JCT SR 92, Snohomish, WA
Built 1952 Load: 32.7 t ADT: 2,662
DUBUQUE RD
FairOver: PILCHUCK RIVER
4.0 N JCT SR2, Snohomish, WA
Built 1991 Load: 32.7 t ADT: 4,682
164TH ST SW
FairOver: SWAMP CREEK
1.0 W JCT I-5, Snohomish, WA
Built 1960 Load: 32.7 t ADT: 29,286
SR 27
FairOver: RATTLER RUN CR UPRR
11.9 N WHITMAN CO, Spokane, WA
Built 1963 Load: 32.7 t ADT: 1,731
FOURTH-E RAMP
FairOver: CITY STREET (4TH AVE)
1.2 E JCT US 195, Spokane, WA
Built 1967 Load: 32.7 t ADT: 7,145
IRR BIA RTE 100
FairOver: CHAMOKANE RIVER
60 M SW INT HWY231/BIA100, Stevens, WA
Built 1990 Load: 32.7 t ADT: 300
OLD HWY NO. 9
FairOver: PRAIRIE CREEK
0.8 m NW Old Hwy 99, Thurston, WA
Built 1936 Load: 32.7 t ADT: 3,433
WOODARD BAY ROAD
FairOver: WOODARD BAY
0.6 m E Libby Rd, Thurston, WA
Built 1958 Load: 32.7 t ADT: 1,137
MOON ROAD
FairOver: BLACK RIVER
1. N JCT SR12, Thurston, WA
Built 1976 Load: 32.7 t ADT: 1,003
VAIL CUTOFF RD
FairOver: DESCHUTES RIVER
100 ft W Vail Loop Rd, Thurston, WA
Built 1956 Load: 32.7 t ADT: 1,079
SR 542
FairOver: MAPLE CREEK
3.3 E JCT SR 547, Whatcom, WA
Built 1900 Load: 32.7 t ADT: 1,937
FRONT STREET
FairOver: FISHTRAP CREEK
0.3 E SR539, Whatcom, WA
Built 1947 Load: 32.7 t ADT: 6,187
GRAND AVENUE
FairOver: WHATCOM CREEK
GRAND & WHATCOM CRK, Whatcom, WA
Built 1949 Load: 32.7 t ADT: 2,800
SUNSET/3360
FairOver: COTTONWOOD CREEK
5.08 MI NE PNE CTY-MALDEN, Whitman, WA
Built 1981 Load: 32.7 t ADT: 70
STAN WILLCOX/1580
FairOver: DUFFIELD CREEK
0.90 MI N SR 272, Whitman, WA
Built 1978 Load: 32.7 t ADT: 53
SPRING ST
FairOver: S FORK PALOUSE RIVER
0.1 N JCT SR 270, Whitman, WA
Built 1915 Load: 32.7 t ADT: 2,034
I-82
FairOver: OVERFLOW CHANNEL
0.6 E JCT US 12, Yakima, WA
Built 1960 Load: 32.7 t ADT: 24,642
SR 223
FairOver: NP RY
3.4 N JCT SR 22, Yakima, WA
Built 1969 Load: 32.7 t ADT: 7,292
I-82
FairOver: BN RR & DRAIN CANAL
0.5 E JCT SR 223, Yakima, WA
Built 1981 Load: 32.7 t ADT: 10,295
SR 241
FairOver: SULPHER CREEK WASTEWAY
5.2 N JCT SR 22, Yakima, WA
Built 1961 Load: 32.7 t ADT: 5,409
IRR BIA RTE 1123
FairOver: SITDOWN CREEK
26.9 KM NW OF SUB-AGENCY, Ferry, WA
Built 1993 Load: 32.8 t ADT: 50
E. PIONEER WAY
FairOver: DRAINAGE BASIN
EAST OF OAK HARBOR, Island, WA
Built 2006 Load: 32.9 t ADT: 30
LAUER RD
FairOver: DRY WASH
01.44 MI N TOKIO RD, Adams, WA
Built 1933 Load: 33.0 t ADT: 38
MOE RIDGE ROAD
FairOver: MAD RIVER
544' SO. OF MAD RIVER RD., Chelan, WA
Built 2001 Load: 33.0 t ADT: 65
US 101
FairOver: BERNARD CR
4.4 N JCT SR 109, Grays Harbor, WA
Built 1957 Load: 33.0 t ADT: 4,908
I-5
FairOver: SAMISH RIVER, PVT RD
2.9 N JCT SR 11, Skagit, WA
Built 1963 Load: 33.0 t ADT: 26,524
DUNKLE ROAD
FairOver: NORTH FORK ROCK CREEK
02.0 E ROCKFORD, Spokane, WA
Built 1986 Load: 33.0 t ADT: 29
CASE ROAD
FairOver: ROZA CANAL
0.60 N HANKS RD, Benton, WA
Built 1973 Load: 33.4 t ADT: 599
SR 520 RAMP
FairOver: PORTAGE BAY
0.8 E JCT I-5, King, WA
Built 1963 Load: 33.4 t ADT: 11,169
LIND AVE SW
FairOver: P9 CHANNEL/PANTHER CREEK
0.6 MI S OF I-405, King, WA
Built 1981 Load: 33.4 t ADT: 8,345
I-90
FairOver: COAL CREEK
0.5 E JCT SR 906, Kittitas, WA
Built 1928 Load: 33.4 t ADT: 17,475
I-90
FairOver: REESER CREEK
1.4 E JCT US 97, Kittitas, WA
Built 1967 Load: 33.4 t ADT: 15,014
I-90
FairOver: REESER CREEK
1.4 E JCT US 97, Kittitas, WA
Built 1967 Load: 33.4 t ADT: 15,014
Monse Bridge Rd
FairOver: OKANOGAN RIVER
.NWSES34T31NR25E, Okanogan, WA
Built 1967 Load: 33.4 t ADT: 479
SULLIVAN ROAD (SB)
FairOver: SPOKANE RIVER
0.25 N 1-90, Spokane, WA
Built 2016 Load: 33.4 t ADT: 28,100
I-5
FairOver: NISQUALLY OVERFLOW-SOUTH
2.7 N JCT SR 510, Thurston, WA
Built 1982 Load: 33.4 t ADT: 48,169
SR 503
FairOver: ROCK CR
5.4 N JCT SR 503 SPUR, Cowlitz, WA
Built 1996 Load: 33.6 t ADT: 1,668
NO DATA ENTERED
FairOver: N FK BR WYNOOCHEE RIVER
NO DATA ENTERED, Grays Harbor, WA
Built 1957 Load: 33.6 t ADT: 50
OLSON ROAD
FairOver: ZIEGLER CREEK
0.2 S JCT 9340, Grays Harbor, WA
Built 1985 Load: 33.6 t ADT: 15
NORTON ROAD
FairOver: WILLIAMS CREEK
01.2 W JCT 9641, Grays Harbor, WA
Built 1962 Load: 33.6 t ADT: 18
LOWER QUEETS VALLE
FairOver: SALMON RIVER
1.4 MI. S. OF JCT. HWY. 1, Jefferson, WA
Built 1979 Load: 33.6 t ADT: 75
Showing 3,701-3,750 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 |