Structure 20285 · Clearwater County, ID

Stc4782;grangemont over Whiskey Creek;stanton Br

Carries Stc4782;grangemont over Whiskey Creek;stanton Br, 0.7 N. 2.8 E. Orofino.

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 overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

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

23 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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 rigid-frame bridge.

Built195472 years old
Length23.0 ft7 m
Daily traffic1,900counted 2023
Last inspectedJune 2023every 48 months

Location

StateIdaho
CountyClearwater
Location0.7 N. 2.8 E. Orofino
CarriesStc4782;grangemont
CrossesWhiskey Creek;stanton Br
Coordinates46.48928, -116.19539

Physical Characteristics

MaterialConcrete
DesignFrame
Total Length23.0 ft (7 m)
Max Span23.0 ft (7 m)
Deck Width33.1 ft (10.1 m)
Deck Area70.7 sq m
Main Spans1
Year Built1954

Traffic

Avg Daily Traffic1,900 (2023)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 48 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number000000000020285

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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