Structure 60404000001022 · Grant County, OR

2635000 over John Day River

Carries 2635000 over John Day River, Co 62 To Mp 7 - E .1 Mi.

Overall conditionPoor

Set by its lowest-rated component: Deck at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructure7/9 · Good
Substructure5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT33 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 7/9Substructure 5/9

33 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 multi-beam bridge.

Built196363 years old
Length32.8 ft10 m
Daily traffic20counted 2019
Last inspectedSeptember 2023every 24 months

Location

StateOregon
CountyGrant
LocationCo 62 To Mp 7 - E .1 Mi
Carries2635000
CrossesJohn Day River
Coordinates44.40523, -118.58387

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length32.8 ft (10 m)
Max Span31.2 ft (9.5 m)
Deck Width27.6 ft (8.4 m)
Deck Area84 sq m
Main Spans1
Year Built1963

Traffic

Avg Daily Traffic20 (2019)
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical4 — Foundations need monitoring
Structure Number060404000001022

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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