Structure 84059000000000 · Kittitas County, WA

Sanders Road over Wilson Creek

Carries Sanders Road over Wilson Creek, 00.27 NW Game Farm.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
22 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 7/9

22 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a channel-beam bridge.

Built1955rebuilt 1971
Length22.0 ft6.7 m
Daily traffic2,031counted 2022
Last inspectedNovember 2024every 24 months

Location

StateWashington
CountyKittitas
Location00.27 NW Game Farm
CarriesSanders Road
CrossesWilson Creek
Coordinates47.01727, -120.51724

Physical Characteristics

MaterialConcrete
DesignChannel Beam
Total Length22.0 ft (6.7 m)
Max Span21.7 ft (6.6 m)
Deck Width29.9 ft (9.1 m)
Deck Area61.0 sq m
Main Spans1
Year Built1955 (reconstructed 1971)

Traffic

Avg Daily Traffic2,031 (2022)
Truck Traffic19%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number084059000000000

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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