Structure P501 · Benewah County, ID

IRR BIA RTE 32 over Little Hangman Creek

Carries IRR BIA RTE 32 over Little Hangman Creek, 8 Km SW Of Agency.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT51 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

51 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.

Built197254 years old
Length50.9 ft15.5 m
Daily traffic700counted 2023
Last inspectedJune 2023every 24 months

Location

StateIdaho
CountyBenewah
Location8 Km SW Of Agency
CarriesIRR BIA RTE 32
CrossesLittle Hangman Creek
Coordinates47.26113, -117.01732

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length50.9 ft (15.5 m)
Max Span48.9 ft (14.9 m)
Deck Width33.5 ft (10.2 m)
Deck Area158.1 sq m
Main Spans1
Year Built1972

Traffic

Avg Daily Traffic700 (2023)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerBureau of Indian Affairs
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number00000000000P501

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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