Structure 61019000001076 · Jackson County, OR

Jhsn Road "a" (19) over Jackson Creek

Carries Jhsn Road "a" (19) over Jackson Creek, J.herbert Stone Nursery.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT41 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

41 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 slab bridge.

Built197848 years old
Length41.0 ft12.5 m
Daily traffic502 lanes
Last inspectedJune 2024every 24 months

Location

StateOregon
CountyJackson
LocationJ.herbert Stone Nursery
CarriesJhsn Road "a" (19)
CrossesJackson Creek
Coordinates42.35200, -122.92903

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length41.0 ft (12.5 m)
Max Span40.0 ft (12.2 m)
Deck Width28.2 ft (8.6 m)
Deck Area107.5 sq m
Main Spans1
Year Built1978

Traffic

Avg Daily Traffic50
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical4 — Foundations need monitoring
Structure Number061019000001076

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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