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
EAST L STREET
UnknownOver: I-5
0.8 N JCT SR 7, Pierce, WA
Built 2021 ADT: 207,983
PED TRAIL
UnknownOver: SR 163
3.3 N JCT SR 16, Pierce, WA
Built 2017 ADT: 2,138
TRAFFIC AVE
UnknownOver: SR 410, RAMPS
0.5 E JCT SR 167, Pierce, WA
Built 2021 ADT: 71,277
PED OVERPASS
UnknownOver: I-705, BNSFRR, DOCK ST
1.3 N JCT I-5, Pierce, WA
Built 2003 ADT: 19,069
BNSF RAILROAD
UnknownOver: PACIFIC HWY SW
.8 NE JCT SR 5, Pierce, WA
Built 1935 ADT: 12,635
TACOMA RAIL RR
UnknownOver: BROOKDALE RD E
2.9 E SR 7, Pierce, WA
Built 1964 ADT: 11,425
SKYLINE PED
UnknownOver: SR 16
0.8 N JCT SR 163, Pierce, WA
Built 1986 ADT: 71,504
SOUTH 48TH STREET
UnknownOver: INTERSTATE HWY 5
3.4 N JCT SR 512, Pierce, WA
Built 1970 ADT: 197,000
FOOTBRIDGE
UnknownOver: SOUTH 48TH STREET
00.1 EA JCT I-5, Pierce, WA
Built 1970
TACOMA RAIL RR
UnknownOver: 112 ST E
0.3 SO JCT SR 512, Pierce, WA
Built 1997 ADT: 16,575
FOOTHILLS TRAIL
UnknownOver: ORTING PED OVER SR 162
10.6 E JCT SR 410, Pierce, WA
Built 1956 ADT: 8,532
STONE DR NW
UnknownOver: TACOMA NARROWS AIRPORT
0.07 W JCT 26TH AV NW, Pierce, WA
Built 2009 ADT: 5,325
BNSF RAILROAD
UnknownOver: MOUNTS RD SW
1.3 NORTH & WEST JCT. SR5, Pierce, WA
Built 2018 ADT: 50
BNSF RR
UnknownOver: Waterview Street
1.77 M E SR 163, Pierce, WA
Built 1920 ADT: 1,893
Railroad
UnknownOver: Dale Street
1.77 M E SR 163, Pierce, WA
Built 1920 ADT: 1,893
Railroad
UnknownOver: South 66th Street
1.07 M E of I5, Pierce, WA
Built 1920 ADT: 1,893
Pedestrian path
UnknownOver: S. 36th Street
0.53 M S SR16, Pierce, WA
Built 2000 ADT: 1,893
Railroad
UnknownOver: Alder Street
1.77 M E SR 163, Pierce, WA
Built 1920 ADT: 1,893
Railroad
UnknownOver: Portland Ave
0.14 M N of I5, Pierce, WA
Built 1950 ADT: 2,825
Railroad
UnknownOver: Bay Street
0.12 M, N of I5, Pierce, WA
Built 2005 ADT: 1,727
Railroad
UnknownOver: Pacific Avenue
0.37 M N or I5, Pierce, WA
Built 1920 ADT: 2,572
Railroad
UnknownOver: E 26th St and E G St
0.26 M N of I5, Pierce, WA
Built 1920 ADT: 986
Railroad
UnknownOver: J Street
0.16 M N of I5, Pierce, WA
Built 2005 ADT: 527
BLACKBURN ST
UnknownOver: I-5
4.7 N JCT SR 534, Skagit, WA
Built 1954 ADT: 66,470
I-5
UnknownOver: SR 536 KINCAID ST
5.4 E JCT SR 20, Skagit, WA
Built 1953 ADT: 13,865
NP RY
UnknownOver: STATE ROUTE 20
5.9 E JCT I-5, Skagit, WA
Built 1955 ADT: 20,098
I-5
UnknownOver: SR 538
JCT I-5, Skagit, WA
Built 1955 ADT: 21,147
I-5
UnknownOver: SR 20, BNSF RR & CITY ST
4.6 E JCT SR 536, Skagit, WA
Built 1955 ADT: 26,545
SR 11
UnknownOver: I-5
1.1 N JCT SR 20, Skagit, WA
Built 1959 ADT: 48,543
BOW HILL RD
UnknownOver: I-5
5.2 N JCT SR 11, Skagit, WA
Built 1963 ADT: 43,540
COOK RD
UnknownOver: I-5
1.6 N JCT SR 11, Skagit, WA
Built 1963 ADT: 43,365
LAKE SAMISH RD
UnknownOver: I-5
9.7 N JCT SR 11, Skagit, WA
Built 1963 ADT: 43,133
SCOTT PAPER CO RD
UnknownOver: SR 20
10.8 E JCT SR 9, Skagit, WA
Built 1967 ADT: 7,222
SR 534
UnknownOver: I-5
3.4 N SNOHOMISH CO, Skagit, WA
Built 1970 ADT: 59,572
SR 20 PED RAMP
UnknownOver: SHIP HBR/GUEMES CHANNEL
7.8 N JCT SR 20, Skagit, WA
Built 1971 ADT: 3,227
STARBIRD RD
UnknownOver: I-5
0.9 N SNOHOMISH CO, Skagit, WA
Built 1972 ADT: 61,841
OLD HWY 99 S
UnknownOver: I-5
2.9 N JCT SR 534, Skagit, WA
Built 1972 ADT: 67,923
GEORGE HOPPER RD
UnknownOver: I-5
1.1 N JCT SR 538, Skagit, WA
Built 1974 ADT: 62,997
ANDERSON RD
UnknownOver: I-5
4.0 N JCT SR 534, Skagit, WA
Built 1974 ADT: 59,821
2ND ST
UnknownOver: 1-5 AND SR 536
5.0 E JCT SR 20, Skagit, WA
Built 2006 ADT: 9,269
GN RY
UnknownOver: US 2
16.1 E JCT SR 203, Snohomish, WA
Built 1963 ADT: 6,711
BOEING TRAFFIC
UnknownOver: STATE ROUTE 526
1.2 E JCT SR 525, Snohomish, WA
Built 1968 ADT: 39,841
ALDERWOOD MALL PKW
UnknownOver: I-5
0.6 N JCT SR 524, Snohomish, WA
Built 1996 ADT: 150,342
GN RY
UnknownOver: US 2
21.0 E JCT SR 203, Snohomish, WA
Built 1963 ADT: 5,659
BROADWAY AVE. NB
UnknownOver: I-5 RAMPS
0.1 N JCT I-5, Snohomish, WA
Built 1950 ADT: 8,661
I-5
UnknownOver: SR 528 4TH ST
JCT I-5, Snohomish, WA
Built 1952 ADT: 25,693
I-5
UnknownOver: EBEY SL / SR 529 / RR
6.9 N JCT SR 529 SPUR, Snohomish, WA
Built 1954 ADT: 8,045
SR 529
UnknownOver: SR 529/E MARINE VIEW DR
4.5 N JCT SR 529 SPUR, Snohomish, WA
Built 1955 ADT: 11,806
SR 529
UnknownOver: SR 529/E MARINE VIEW DR
4.5 N JCT SR 529 SPUR, Snohomish, WA
Built 1955 ADT: 11,806
I-5
UnknownOver: SR 532/268TH ST NE
7.2 E SNOHOMISH CO, Snohomish, WA
Built 1957 ADT: 12,622
Showing 901-950 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 |