Structure 61605000001038 · Wallowa County, OR

Big Canyon Road over Wallowa River

Carries Big Canyon Road over Wallowa River, Inter HWY 82 & Usfs #8270.

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 overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT111 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

111 ft end to end, longest span 43 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.

Built196957 years old
Length110.9 ft33.8 m
Daily traffic80counted 2001
Last inspectedJuly 2024every 48 months

Location

StateOregon
CountyWallowa
LocationInter HWY 82 & Usfs #8270
CarriesBig Canyon Road
CrossesWallowa River
Coordinates45.62000, -117.69972

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length110.9 ft (33.8 m)
Max Span43.0 ft (13.1 m)
Deck Width17.1 ft (5.2 m)
Deck Area175.8 sq m
Main Spans3
Year Built1969

Traffic

Avg Daily Traffic80 (2001)
Lanes On Bridge1

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 48 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number061605000001038

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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