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: WILLOW CREEK
0.03 MI SE WARNER, Whitman, WA
Over: DRY CREEK
Q NE 2.16 S 36 NE, Grant, WA
Over: BLACK SLOUGH
00.5 E VALLEY HWY, Whatcom, WA
Over: HILINE CANAL
00.34 N SMITHSON RD, Kittitas, WA
Over: HILINE CANAL
00.85 NE ROBBINS RD, Kittitas, WA
Over: DRY CREEK
42 NE .8 West of U NE, Grant, WA
Over: CARBON RIVER
00.6 E FAIRFAX RD, Pierce, WA
Over: PLEASANT VALLEY CREEK
0.10 S SR 23, Whitman, WA
Over: NORTH FORK PALOUSE RIVER
0.10 MI E SR 195, Whitman, WA
Over: SOUTH FORK PALOUSE RIVER
0.10 MI W SR 195, Whitman, WA
Over: COTTONWOOD CREEK
0.1 S JCT US 2, Lincoln, WA
Over: UNION FLAT CREEK
0.20 N SR 195, Whitman, WA
Over: DEPRESSION
0.6 E JCT 84TH AVE, King, WA
Over: PAUL CREEK
0.75M EAST OF OLGA ROAD, San Juan, WA
Over: ALKALI FLAT CREEK
0.33 MI E SR 26, Whitman, WA
Over: ROCK CR NP RY-ABANDONED
0.4 E PACIFIC CO, Lewis, WA
Over: THUNDER CREEK
6.3 N JCT SR 20, Skagit, WA
Over: TACOMA NARROWS
5.1 N JCT I-5, Pierce, WA
Over: LIND COULEE
3.0 N JCT SR 170, Grant, WA
Over: HILLS NORTH RD
7.3 E JCT SR 261, Adams, WA
Over: I-5
1.6 N JCT SR 520, King, WA
Over: NP RY SPS RY & ACCESS RD
1.7 N JCT I-5, Clark, WA
Over: I-90
29.0 N WHITMAN CO, Spokane, WA
Over: I-90
29.0 N WHITMAN CO, Spokane, WA
Over: GOLDEN GIVEN RD
0.9 E JCT SR 7, Pierce, WA
Over: GOLDEN GIVEN RD E
0.9 E JCT SR 7, Pierce, WA
Over: S-W RAMP TO I-90
0.1 E JCT I-405, King, WA
Over: COWEEMAN RIVER
2.0 N JCT SR 432, Cowlitz, WA
Over: SVID CANAL
00.11 N GURLEY ROAD, Yakima, WA
Over: DEEP CREEK
0.1 N EUCLID ROAD, Spokane, WA
Over: COLVILLE RIVER
00.27 S JCT SR 395, Stevens, WA
Over: ROZA CANAL
00.15 N. OF S.R.24, Yakima, WA
Over: SNIPES CANAL
00.49 W FORDYCE RD, Yakima, WA
Over: USIS CANAL
00.03 S PHILLIP JN, Yakima, WA
Over: SATSOP RIVER
00.1 W JCT E.SATSOP, Grays Harbor, WA
Over: BLACK RIVER CHANNEL
0.6 MI S JCT SR-900, King, WA
Over: UP & BN RR
00.02 W SO 1ST ST, Yakima, WA
Over: DEEP CREEK
.1 MI N GARFIELD RD, Spokane, WA
Over: ENTIAT RIVER
14.3 N JCT US 2, Chelan, WA
Over: WANITY SLOUGH
27.3 N KLICKITAT CO, Yakima, WA
Over: NP RY & RAMP
14.7 N JCT SR22, Yakima, WA
Over: SOUTH BAY
1.9 N JCT SR 105 SP, Grays Harbor, WA
Over: LITTLE KLICKITAT RIVER
1.4 E JCT SR 97, Klickitat, WA
Over: BIG BUCK CREEK
0.18 NE JCT NESTER PEAK R, Skamania, WA
Over: HAYNIE CR
00.1 S MCGEE RD., Whatcom, WA
Over: DAKOTA CR TRIB
00.7 S. HAYNIE RD., Whatcom, WA
Over: FIFTEEN MILE CREEK
0.3 MI S OF SE MAY VLY RD, King, WA
Over: LITTLE HANGMAN CREEK
0.10 MI S SR 274, Whitman, WA
Over: ROZA POWER WASTEWAY
00.33 W BUTTERFIELD, Yakima, WA
Over: DRY WASH
00.43 MI N TOKIO RD, Adams, WA
Showing 351-400 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.