Structure 10401000000027 · Shoshone County, ID

Fs Route 1504 over Shoshone Creek

Carries Fs Route 1504 over Shoshone Creek, Shoshone Creek.

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 overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT99 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

99 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.

Built197749 years old
Length99.4 ft30.3 m
Daily traffic40counted 2018
Last inspectedAugust 2022every 48 months

Location

StateIdaho
CountyShoshone
LocationShoshone Creek
CarriesFs Route 1504
CrossesShoshone Creek
Coordinates47.77192, -115.96674

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length99.4 ft (30.3 m)
Max Span66.6 ft (20.3 m)
Deck Width16.4 ft (5 m)
Deck Area151.5 sq m
Main Spans1
Year Built1977

Traffic

Avg Daily Traffic40 (2018)
Lanes On Bridge1

Inspection & Ownership

Last InspectionAugust 2022
Inspection FrequencyEvery 48 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number010401000000027

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.

Nearby Bridges