Structure 60702000001027 · Grant County, OR

Forest RD 58 over Sunflower Creek

Carries Forest RD 58 over Sunflower Creek, 18.5 Mi E Of 42 58 Jct.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT32 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 7/9Substructure 5/9 · sets the rating

32 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.

Built1962rebuilt 1995
Length32.5 ft9.9 m
Daily traffic7counted 1992
Last inspectedNovember 2024every 12 months

Location

StateOregon
CountyGrant
Location18.5 Mi E Of 42 58 Jct
CarriesForest RD 58
CrossesSunflower Creek
Coordinates44.18294, -119.56699

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length32.5 ft (9.9 m)
Max Span30.8 ft (9.4 m)
Deck Width15.1 ft (4.6 m)
Deck Area45.5 sq m
Main Spans1
Year Built1962 (reconstructed 1995)

Traffic

Avg Daily Traffic7 (1992)
Lanes On Bridge1

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 12 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical4 — Foundations need monitoring
Structure Number060702000001027

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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