Structure 83731000000000 · Chelan County, WA

SR 285 over Wenatchee River & Gnrr

Carries SR 285 over Wenatchee River & Gnrr, 1.5 N Jct SR 285cowentch.

Overall conditionFair

Set by its lowest-rated component: Deck at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT608 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

608 ft end to end, longest span 260 ft: about 1.7 football fields. Lengths and the semi-truck 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.

Built195472 years old
Length607.9 ft185.3 m
Daily traffic20,059counted 2023
Last inspectedSeptember 2024every 24 months

Location

StateWashington
CountyChelan
Location1.5 N Jct SR 285cowentch
CarriesSR 285
CrossesWenatchee River & Gnrr
Coordinates47.45778, -120.33700

Physical Characteristics

MaterialSteel Continuous
DesignGirder and Floorbeam
Total Length607.9 ft (185.3 m)
Max Span259.8 ft (79.2 m)
Deck Width37.1 ft (11.3 m)
Deck Area2093.9 sq m
Main Spans3
Year Built1954

Traffic

Avg Daily Traffic20,059 (2023)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number083731000000000

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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