I 90 over Ronan Ranch Road

Fair Condition56 years old6,161 vehicles/day

Location

StateMontana
CountyStillwater
Location7.4m W Park City
CarriesI 90
CrossesRonan Ranch Road
Coordinates45.60034, -109.06192

Condition Ratings

Overall ConditionFair
Deck5 (Fair)
Superstructure5 (Fair)
Substructure6 (Satisfactory)
Scour CriticalNot applicable

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length79.1 ft (24.1 m)
Max Span29.9 ft (9.1 m)
Deck Width44.0 ft (13.4 m)
Deck Area322.9 sq m
Main Spans3
Year Built1970

Traffic

Avg Daily Traffic6,161 (2023)
Truck Traffic20%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberI00090419+00262

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