Structure 84659000000000 · Kittitas County, WA

Vantage Highway over Hiline Canal

Carries Vantage Highway over Hiline Canal, 00.50 E Parke CR RD.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT41 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

41 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 girder bridge.

Built193690 years old
Length41.0 ft12.5 m
Daily traffic1,126counted 2023
Last inspectedOctober 2023every 24 months

Location

StateWashington
CountyKittitas
Location00.50 E Parke CR RD
CarriesVantage Highway
CrossesHiline Canal
Coordinates47.00127, -120.31533

Physical Characteristics

MaterialConcrete Continuous
DesignGirder and Floorbeam
Total Length41.0 ft (12.5 m)
Max Span40.0 ft (12.2 m)
Deck Width30.8 ft (9.4 m)
Deck Area117.5 sq m
Main Spans1
Year Built1936

Traffic

Avg Daily Traffic1,126 (2023)
Truck Traffic34%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical4 — Foundations need monitoring
Structure Number084659000000000

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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