US 12 over Little Blackfoot River

Fair Condition44 years old3,217 vehicles/day

Location

StateMontana
CountyPowell
Location1m W Avon
CarriesUS 12
CrossesLittle Blackfoot River
Coordinates46.59813, -112.61596

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure7 (Good)
Substructure6 (Satisfactory)
Channel/Waterway7 (Good)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length118.1 ft (36 m)
Max Span69.9 ft (21.3 m)
Deck Width46.3 ft (14.1 m)
Deck Area507.6 sq m
Main Spans2
Year Built1982

Traffic

Avg Daily Traffic3,217 (2023)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberP00008011+08791

Nearby Bridges