Structure 86643000000000 · Whitman County, WA

App Utwn East/9410 over Union Flat Creek

Carries App Utwn East/9410 over Union Flat Creek, 0.54 Mi E SR 195.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT43 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

43 ft end to end. Lengths and the car on the deck are drawn to the same scale. 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 tee-beam bridge.

Built200125 years old
Length43.0 ft13.1 m
Daily traffic5counted 2021
Last inspectedJanuary 2025every 24 months

Location

StateWashington
CountyWhitman
Location0.54 Mi E SR 195
CarriesApp Utwn East/9410
CrossesUnion Flat Creek
Coordinates46.54498, -117.07877

Physical Characteristics

MaterialPrestressed Concrete
DesignTee Beam
Total Length43.0 ft (13.1 m)
Max Span42.0 ft (12.8 m)
Deck Width18.0 ft (5.5 m)
Deck Area72.0 sq m
Main Spans1
Year Built2001

Traffic

Avg Daily Traffic5 (2021)
Truck Traffic40%
Lanes On Bridge1

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number086643000000000

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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