Total Bridges
8,474
Public highway bridges in Washington
State profile · Below median Poor share
According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Washington.
Washington has 8,474 public highway bridges in the FHWA's 2024 National Bridge Inventory, and 462 of them are rated Poor.
That is 5.5% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 24 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.
Inventory: FHWA NBI 2024 · last ETL August 2026
Total Bridges
8,474
Public highway bridges in Washington
Good Condition
50.1%
4,246 bridges rated 7-9
0.1pp vs 50% benchmark
Poor Condition
5.5%
462 bridges whose lowest applicable component is rated 0-4
-2.1pp vs national avg 7.5%
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.
Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.
Washington vs all states by public bridge inventory
Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges
8,474 29th of 54 higher than 25 of 54 states
States and territories, banded by public bridge inventory size
Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · 2024
The highlighted point is Washington: 8,474 bridges and 5.45% in Poor condition, rank #24 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Washington on that same Poor-share ordering:
The full national sortable table lives on the rankings page.
Exclusive FHWA material families across all 8,474 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.
State agency holds 39.9% of the 8,474 public highway bridges filed under Washington in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.
Pre-1950 construction accounts for 12.8% of the 8,474 bridges with a recorded original year in Washington. Era bands are orthogonal to the Poor-share ranking above.
Adjacent states by Poor-condition share (lower share = better)
States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Washington on the same metric.
KS
AR
WA
CA
NJ
Six lowest-condition bridges in Washington, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
Over: PUYALLUP WATERWAY RR
2.5 N JCT I-5, Pierce, WA
Over: WASTEWATER NUMBER 3
8.4 E JCT US 97, Yakima, WA
Over: PUYALLUP RIVER
0.2 N JCT I-5, Pierce, WA
Over: SPOKANE RIVER
00.6 N OF I-90, Spokane, WA
Over: Private Road
Magnolia Seattle, King, WA
Over: NINE MILE CREEK
19.05 E SR 21, Ferry, WA
Over: SR 16
5.7 N JCT SR 16 AR, Pierce, WA
Over: SB SR 16
JCT SR 3, Kitsap, WA
Over: S-S RAMP
5.8 E JCT SR 8, Thurston, WA
Over: N FK TOUTLE RIVER
0.1 E JCT SR 504 SP, Cowlitz, WA
Over: SR 405
0.9 N JCT SR 515, King, WA
Over: FIRST CREEK
9.1 N JCT US 97 ALT, Chelan, WA
Over: SR 543 SOUTHBOUND
0.8 N JCT I-5, Whatcom, WA
Over: NOOKSACK R OVERFLOW
1.5 N JCT SR 544, Whatcom, WA
Over: SOUTH DEADMAN CREEK
9.0 N JCT SR 12, Garfield, WA
Over: NORTH RIVER
2.2 SW GRAYS H CO, Pacific, WA
Over: LITTLE HOKO RIVER
0.72 S JCT SR112, Clallam, WA
Over: BALCH PASSAGE
0.1 NE VILLA BEACH, Pierce, WA
Over: FISH TRAP CR
00.2 S E BOUNDARY, Whatcom, WA
Over: SPRINGBROOK CREEK
0.5 M. WEST OF LIND AVE., King, WA
Over: UNION PACIFIC RR
0.5 MI EAST OF SR-167, King, WA
Over: W FK MILLER RIVER
3.8 MI S OF 6410/OLD HWY, King, WA
Over: GOBLIN CREEK
17 MI NE OF HWY 2/63 JCT, King, WA
Over: LAKE CUSHMAN (N FK SKOK)
N.W. END OF LAKE CUSHMAN, Mason, WA
Over: RAINY CREEK
NO DATA ENTERED, Chelan, WA
Over: SULLIVAN CREEK
NO DATA ENTERED, Pend Oreille, WA
Over: WINCHESTER WASTEWAY
8.4 E JCT SR 281, Grant, WA
Over: W VALLEY HWY
0.5 N JCT SR 410, Pierce, WA
Over: COVILLE CREEK
34.8 E JCT SR 113, Clallam, WA
Over: SADDLE MOUNTAIN WW
M.5 0.1 S of 24 SW, Grant, WA
Over: SINKING CREEK
6.38 S SR 2, Lincoln, WA
Over: Black Creek
00.16 E FERSON ROAD, Yakima, WA
Over: WEST CANAL
C SE .7 N of 12, Grant, WA
Over: RUSSELL CREEK
00.94N COTTONWOOD, Walla Walla, WA
Over: WALLA WALLA RIVER
01.93 N FROG HOLLOW, Walla Walla, WA
Over: CHINA CREEK
00.1 N JCT. SR507, Lewis, WA
Over: WEBER COULEE
00.21MI S SCHRAG RD, Adams, WA
Over: ROCK CREEK
1.5 S HOXIE ROAD, Spokane, WA
Over: UNNAMED DRAINAGE
30.78 MI SW SR 195, Whitman, WA
Over: SR 16 RAMPS/S SPRAGUE AV
0.4 N JCT I-5, Pierce, WA
Over: SR 504 TURNAROUND
21.9 E JCT SR 504 SP, Cowlitz, WA
Over: 116TH AVE NE
JCT SR 520, King, WA
Over: DRAGOON CREEK
0.1 W DEER PARK CL, Spokane, WA
Over: CRAB CREEK
8.34 SE SR 28, Lincoln, WA
Over: WENAS CREEK
00.04 N OF FINK RD, Yakima, WA
Over: INTERMITTENT STREAM
0.86 MI W THIEL RD, Adams, WA
Over: TRAIL & CREEK
.05 S I5, Thurston, WA
Over: CRAB CREEK
4.09 W SR 23, Lincoln, WA
Over: SVID CANAL
0.46 S KING TULL, Benton, WA
Over: WAHLUKE BRANCH CANAL
K SW .4 N of 22.5, Grant, WA
Over: SPRING VALLEY
01.58N VALLEY GROVE, Walla Walla, WA
Over: Penny Creek
0.35 mi W of 35th Ave SE, Snohomish, WA
Over: ISSAQUAH CK
0.1 W OF FRONT ST, King, WA
Over: WALUKE BRANCH CANAL
R SW @ 23 SW, Grant, WA
Over: KID Canal
0.4 Mi S of Badger Road, Benton, WA
Over: MF WILDCAT CREEK
0.5 W JCT SR 108, Grays Harbor, WA
Showing 5,101-5,150 of 8,474 bridges
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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.
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.
What to do with this
Use Washington's inventory picture to drill to a county or a specific span.
NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Washington Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.