Structure 41301000001070 · Lemhi County, ID

No Data Entered over Panther Creek

Carries No Data Entered over Panther Creek, 5.2 Miles SW Of Cobalt.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
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 FT26 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

26 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.

Built1953rebuilt 1995
Length25.9 ft7.9 m
Daily traffic501 lanes
Last inspectedOctober 2023every 24 months

Location

StateIdaho
CountyLemhi
Location5.2 Miles SW Of Cobalt
CarriesNo Data Entered
CrossesPanther Creek
Coordinates45.03400, -114.29806

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length25.9 ft (7.9 m)
Max Span25.3 ft (7.7 m)
Deck Width14.4 ft (4.4 m)
Deck Area34.8 sq m
Main Spans1
Year Built1953 (reconstructed 1995)

Traffic

Avg Daily Traffic50
Lanes On Bridge1

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical4 — Foundations need monitoring
Structure Number041301000001070

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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