S 80 over Cowboy Steele Creek

Fair Condition76 years old158 vehicles/day

Location

StateMontana
CountyChouteau
Location5m SE Square Butte
CarriesS 80
CrossesCowboy Steele Creek
Coordinates47.46253, -110.11615

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure5 (Fair)
Substructure6 (Satisfactory)
Channel/Waterway7 (Good)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length77.1 ft (23.5 m)
Max Span24.9 ft (7.6 m)
Deck Width29.9 ft (9.1 m)
Deck Area213.8 sq m
Main Spans3
Year Built1950 (reconstructed 1964)

Traffic

Avg Daily Traffic158 (2023)
Truck Traffic17%
Lanes On Bridge2

Inspection & Ownership

Last Inspection924
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberP00080040+09331

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