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-5
FairOver: DILLENBAUGH CREEK
6.8 N JCT SR 508, Lewis, WA
Built 1952 Load: 27.2 t ADT: 65,022
I-5
FairOver: NP RY & DILLENBAUGH CR
6.1 N JCT SR 508, Lewis, WA
Built 1954 Load: 27.2 t ADT: 72,086
NO DATA ENTERED
FairOver: CISPUS RIVER
16 1/2 MILES SE OF JCT. H, Lewis, WA
Built 1958 Load: 27.2 t ADT: 69
ELK CREEK RD.
FairOver: ELK CREEK
0.85 W 27092, Lewis, WA
Built 1951 Load: 27.2 t ADT: 325
SR 131
FairOver: COWLITZ RIVER
1.8 N JCT NAT'L FOREST BD, Lewis, WA
Built 1949 Load: 27.2 t ADT: 1,096
AIRPORT ROAD
FairOver: SALZER CREEK
0.5 NW CHEHALIS, Lewis, WA
Built 1952 Load: 27.2 t ADT: 7,230
SCHMIT ROAD
FairOver: CEDAR CREEK
6.0 E TOLEDO, Lewis, WA
Built 1953 Load: 27.2 t ADT: 10
WILDWOOD ROAD
FairOver: S.FORK CHEHALIS RIVER
3.0 S BOISTFORT, Lewis, WA
Built 1955 Load: 27.2 t ADT: 284
HINING ROAD
FairOver: OLEQUA CREEK
S. C/L WINLOCK, Lewis, WA
Built 1957 Load: 27.2 t ADT: 29
MANDY ROAD
FairOver: FOSTER CREEK
3.0 SW TOLEDO, Lewis, WA
Built 1953 Load: 27.2 t ADT: 142
FAS 1027
FairOver: CHINA CREEK
1.1 E. END FAS1027, Lewis, WA
Built 1911 Load: 27.2 t ADT: 8,788
KELSO STREET
FairOver: STOWE CREEK
0.5 BLK E MAIN ST, Lewis, WA
Built 1950 Load: 27.2 t ADT: 355
STEVENS CANYON ROA
FairOver: FALLS CREEK
0.48 MILES WEST OF JCT. U, Lewis, WA
Built 1956 Load: 27.2 t ADT: 1,375
SR 300
FairOver: UNION RIVER
2.9 E STATE PARK, Mason, WA
Built 1960 Load: 27.2 t ADT: 11,840
SR 300
FairOver: MISSION CREEK
0.3 E STATE PARK, Mason, WA
Built 1963 Load: 27.2 t ADT: 7,194
Mission Creek Road
FairOver: BIG MISSION CREEK
0.79 N JCT SR 300, Mason, WA
Built 1968 Load: 27.2 t ADT: 671
COUNTY ROAD 9221
FairOver: SALMON CREEK
12.7 MI NW OKANOGAN, Okanogan, WA
Built 1969 Load: 27.2 t ADT: 20
SR 6
FairOver: ST PARKS TRAIL (PLUVIUS)
21.8 E JCT US 101, Pacific, WA
Built 1922 Load: 27.2 t ADT: 1,561
NEMAH VALLEY ROAD
FairOver: NEMAH RIVER
8.1 N JCT 4 & 101, Pacific, WA
Built 1981 Load: 27.2 t ADT: 74
ELKHORN ROAD
FairOver: ELKHORN CREEK
1.0 S GRAY HAR. CO., Pacific, WA
Built 1996 Load: 27.2 t ADT: 74
NO DATA ENTERED
FairOver: SULLIVAN CREEK
NO DATA ENTERED, Pend Oreille, WA
Built 1956 Load: 27.2 t ADT: 88
Fifth Ave (Usk)
FairOver: Pend Oreille River
0.70 E JCT SR20, Pend Oreille, WA
Built 1964 Load: 27.2 t ADT: 1,900
I-5
FairOver: S96TH ST
0.6 N JCT SR 512, Pierce, WA
Built 1958 Load: 27.2 t ADT: 86,615
PETERSON RD E
FairOver: OHOP CREEK OVERFLOW
.3 E JCT SR 7, Pierce, WA
Built 1919 Load: 27.2 t ADT: 85
SR 20 EXTENSION
FairOver: FRIDAY HBR-SAN JUAN CHAN
NE END SAN JUAN ISL, San Juan, WA
Built 1968 Load: 27.2 t ADT: 2,587
I-5
FairOver: SKAGIT RIVER
0.7 N JCT SR 538, Skagit, WA
Built 1955 Load: 27.2 t ADT: 76,218
OLD HWY 99 NORTH
FairOver: SILVER CREEK
0.4 SE JCT LAKE SAMISH RD, Skagit, WA
Built 1934 Load: 27.2 t ADT: 1,687
BEAVER LAKE RD
FairOver: NOOKACHAMPS CREEK
3.0 SE JCT SR 9, Skagit, WA
Built 1977 Load: 27.2 t ADT: 186
SWEDE HEAVEN RD
FairOver: TRIB.N.F.STILLAGUAMISH R
2.1 NW JCT SR 530, Snohomish, WA
Built 1985 Load: 27.2 t ADT: 529
12TH ST NE
FairOver: LITTLE PILCHUCK CREEK
2.0 S JCT SR 92, Snohomish, WA
Built 1985 Load: 27.2 t ADT: 27
SANDERS RD
FairOver: CARPENTER CREEK
8.1 E JCT SR 9, Snohomish, WA
Built 1984 Load: 27.2 t ADT: 15
ROBE-MENZEL RD
FairOver: PILCHUCK RIVER
2.2 S JCT SR 92, Snohomish, WA
Built 1978 Load: 27.2 t ADT: 2,124
20TH STREET NE
FairOver: LAKE STEVENS OUTFLOW
0.01 E JCT HARTFORD DR, Snohomish, WA
Built 1993 Load: 27.2 t ADT: 5,300
SULLIVAN ROAD
FairOver: BNSF RAILROAD
0.05 S TRENT RD, Spokane, WA
Built 1960 Load: 27.2 t ADT: 21,500
Middle Frk Mill Cr
FairOver: SOUTH FORK MILL CREEK
.12 NE SOUTH FORK MILL CR, Stevens, WA
Built 1974 Load: 27.2 t ADT: 35
Greenwood Loop Rd
FairOver: COLVILLE RIVER
1.02 S JCT SR395, Stevens, WA
Built 1963 Load: 27.2 t ADT: 527
BLUE CREEK-WEST
FairOver: COLVILLE RIVER
00.01 W JCT SR 395, Stevens, WA
Built 1957 Load: 27.2 t ADT: 971
US 12
FairOver: SLOUGH
2.6 E GRAYS HBR CO, Thurston, WA
Built 1926 Load: 27.2 t ADT: 11,343
SR 4
FairOver: GRAYS RIVER
14.6 E JCT SR 401, Wahkiakum, WA
Built 1938 Load: 27.2 t ADT: 1,124
SR 548
FairOver: CALIFORNIA CR
10.3 W JCT I-5, Whatcom, WA
Built 1924 Load: 27.2 t ADT: 3,717
SR 26
FairOver: ALKALI FLAT CREEK
0.3 E JCT SR 127, Whitman, WA
Built 1972 Load: 27.2 t ADT: 2,836
SR 27
FairOver: WIR RAILROAD
10.5 N JCT SR 272, Whitman, WA
Built 1980 Load: 27.2 t ADT: 1,215
THORN CREEK/3380
FairOver: THORN CREEK
2.97 MI SE PNE CTY-MALDEN, Whitman, WA
Built 1964 Load: 27.2 t ADT: 121
HAY-LACROSSE/7000
FairOver: MUD FLAT CREEK
6.64 MI S SR 26, Whitman, WA
Built 1970 Load: 27.2 t ADT: 183
AHTANUM ROAD
FairOver: BACHELOR CREEK
00.08 W SO 38TH AVE, Yakima, WA
Built 1992 Load: 27.2 t ADT: 9,000
PARKER BRIDGE RD
FairOver: YAKIMA RIVER
0.07 SW OF YVH, Yakima, WA
Built 1999 Load: 27.2 t ADT: 860
I-5
FairOver: COWEEMAN RIVER
1.4 N JCT SR 432, Cowlitz, WA
Built 1979 Load: 27.5 t ADT: 28,653
SR 17
FairOver: E FOSTER CREEK
8.5 N JCT SR 174, Douglas, WA
Built 1950 Load: 27.5 t ADT: 1,189
148TH AVE SE
FairOver: SOOS CREEK
0.25 MI N OF SE 256TH ST, King, WA
Built 1971 Load: 27.5 t ADT: 2,300
FRONT ST N.
FairOver: E.FK.ISSAQUAH CK.
0.3 MI S OF I-90, King, WA
Built 1970 Load: 27.5 t ADT: 30,000
Showing 3,101-3,150 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 |