Structure 11PEC0037 · Grant County, WA

Wahatis Peak Road over Wahluke Branch Canal

Carries Wahatis Peak Road over Wahluke Branch Canal, (white Bluffs Wasteway -.

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 overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT101 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 7/9

101 ft end to end, longest span 49 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.

Built196759 years old
Length101.0 ft30.8 m
Daily traffic1counted 2023
Last inspectedFebruary 2023every 24 months

Location

StateWashington
CountyGrant
Location(white Bluffs Wasteway -
CarriesWahatis Peak Road
CrossesWahluke Branch Canal
Coordinates46.76562, -119.41881

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length101.0 ft (30.8 m)
Max Span48.9 ft (14.9 m)
Deck Width28.2 ft (8.6 m)
Deck Area264.9 sq m
Main Spans2
Year Built1967

Traffic

Avg Daily Traffic1 (2023)
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerBureau of Reclamation
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number11PEC0037

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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