IRR - L44235 over Armells Creek

Fair Condition59 years old100 vehicles/day

Location

StateMontana
CountyRosebud
Location22m NW Colstrip
CarriesIRR - L44235
CrossesArmells Creek
Coordinates46.15044, -106.79596

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 Length92.5 ft (28.2 m)
Max Span45.9 ft (14 m)
Deck Width33.1 ft (10.1 m)
Deck Area284.8 sq m
Main Spans2
Year Built1967

Traffic

Avg Daily Traffic100 (2025)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last Inspection225
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberP00039043+08381

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