Structure 19406E0000000 · Walla Walla County, WA

US 12 over Touchet North RD

Carries US 12 over Touchet North RD, 12.0 E Jct US 730 Spur.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT63 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

63 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 slab bridge.

Built20224 years old
Length62.7 ft19.1 m
Daily traffic3,740counted 2023
Last inspectedJuly 2023every 24 months

Location

StateWashington
CountyWalla Walla
Location12.0 E Jct US 730 Spur
CarriesUS 12
CrossesTouchet North RD
Coordinates46.05439, -118.66908

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length62.7 ft (19.1 m)
Max Span50.5 ft (15.4 m)
Deck Width81.0 ft (24.7 m)
Deck Area471.8 sq m
Main Spans1
Year Built2022

Traffic

Avg Daily Traffic3,740 (2023)
Truck Traffic13%
Lanes On Bridge4
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number0019406E0000000

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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