Structure 41405000001004 · Camas County, ID

Fdr over South Fork Boise River

Carries Fdr over South Fork Boise River, Skunk Creek-so Fk Junct..

Overall conditionPoor

Set by its lowest-rated component: Substructure at 4 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating4/9 · Poor
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT70 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 4/9 · sets the rating

70 ft end to end, longest span 35 ft. 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.

Built198937 years old
Length69.9 ft21.3 m
Daily traffic12counted 1980
Last inspectedSeptember 2023every 24 months

Location

StateIdaho
CountyCamas
LocationSkunk Creek-so Fk Junct.
CarriesFdr
CrossesSouth Fork Boise River
Coordinates43.64185, -114.90367

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length69.9 ft (21.3 m)
Max Span35.1 ft (10.7 m)
Deck Width16.1 ft (4.9 m)
Deck Area104.4 sq m
Main Spans2
Year Built1989

Traffic

Avg Daily Traffic12 (1980)
Lanes On Bridge1

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical4 — Foundations need monitoring
Structure Number041405000001004

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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