Structure 29765 · Latah County, ID

Little Bear Ridge over Little Bear Creek

Carries Little Bear Ridge over Little Bear Creek, 0.1 N. 2.0 E. Troy.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
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
20 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 5/9 · sets the rating

20 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 multi-beam bridge.

Built196561 years old
Length20.0 ft6.1 m
Daily traffic360counted 2023
Last inspectedMay 2023every 24 months

Location

StateIdaho
CountyLatah
Location0.1 N. 2.0 E. Troy
CarriesLittle Bear Ridge
CrossesLittle Bear Creek
Coordinates46.73878, -116.72886

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length20.0 ft (6.1 m)
Max Span19.0 ft (5.8 m)
Deck Width24.3 ft (7.4 m)
Deck Area45.1 sq m
Main Spans1
Year Built1965

Traffic

Avg Daily Traffic360 (2023)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerOther Local Agencies
Historical SignificanceHistorical significance is not determined
Scour CriticalUnknown
Structure Number000000000029765

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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