Structure 20415 · Shoshone County, ID

Stc 5711;moon Pass over Bullion Creek

Carries Stc 5711;moon Pass over Bullion Creek, 8.7 N. 1.9 E. Avery.

Overall conditionFair

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

How ratings work
Deck8/9 · Very Good
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT34 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 7/9Substructure 5/9 · sets the rating

34 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.

Built193789 years old
Length34.1 ft10.4 m
Daily traffic220counted 2023
Last inspectedAugust 2024every 24 months

Location

StateIdaho
CountyShoshone
Location8.7 N. 1.9 E. Avery
CarriesStc 5711;moon Pass
CrossesBullion Creek
Coordinates47.37719, -115.76436

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length34.1 ft (10.4 m)
Max Span33.1 ft (10.1 m)
Deck Width22.0 ft (6.7 m)
Deck Area69.7 sq m
Main Spans1
Year Built1937

Traffic

Avg Daily Traffic220 (2023)
Truck Traffic5%
Lanes On Bridge1

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalUnknown
Structure Number000000000020415

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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