Structure 7386C0000000 · Grant County, WA

I-90 over West Canal

Carries I-90 over West Canal, 12.3 E Jct SR 26.

Overall conditionPoor

Set by its lowest-rated component: Deck at 3 of 9.

How ratings work
Decksets the rating3/9 · Serious
Superstructure6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT109 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 3/9 · sets the ratingSuperstructure 6/9Substructure 7/9

109 ft end to end, longest span 38 ft. 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.

Built196462 years old
Length108.9 ft33.2 m
Daily traffic5,896counted 2023
Last inspectedFebruary 2023every 24 months

Location

StateWashington
CountyGrant
Location12.3 E Jct SR 26
CarriesI-90
CrossesWest Canal
Coordinates47.08754, -119.85649

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length108.9 ft (33.2 m)
Max Span38.1 ft (11.6 m)
Deck Width41.0 ft (12.5 m)
Deck Area415 sq m
Main Spans5
Year Built1964

Traffic

Avg Daily Traffic5,896 (2023)
Truck Traffic28%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number0007386C0000000

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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