Frontage Road 925 over Int Jeff City-i 15 001

Fair Condition56 years old100 vehicles/day

Location

StateMontana
CountyJefferson
LocationJefferson City
CarriesFrontage Road 925
CrossesInt Jeff City-i 15 001
Coordinates46.38821, -112.02494

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure5 (Fair)
Scour CriticalNot applicable

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length269.4 ft (82.1 m)
Max Span75.1 ft (22.9 m)
Deck Width34.1 ft (10.4 m)
Deck Area853.8 sq m
Main Spans4
Year Built1970

Traffic

Avg Daily Traffic100 (2025)
Truck Traffic3%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last Inspection523
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberL22925000+02001

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