Structure 6062A0000000 · Chelan County, WA

US 97 over Peshastin Creek

Carries US 97 over Peshastin Creek, 9.4 N Kittitas Co.

Overall conditionFair

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

How ratings work
Culvertsets 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 FT42 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 42 ft across. 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, so those are drawn as typical for a culvert.

Built195868 years old
Length42.3 ft12.9 m
Daily traffic6,057counted 2023
Last inspectedAugust 2024every 24 months

Location

StateWashington
CountyChelan
Location9.4 N Kittitas Co
CarriesUS 97
CrossesPeshastin Creek
Coordinates47.41505, -120.65835

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length42.3 ft (12.9 m)
Max Span38.4 ft (11.7 m)
Deck Area172.9 sq m
Main Spans1
Year Built1958

Traffic

Avg Daily Traffic6,057 (2023)
Truck Traffic22%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical4 — Foundations need monitoring
Structure Number0006062A0000000

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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