I 94 over Int Diamond Ring

Fair Condition55 years old2,137 vehicles/day

Location

StateMontana
CountyCuster
Location21m NE Miles City
CarriesI 94
CrossesInt Diamond Ring
Coordinates46.61577, -105.53942

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure7 (Good)
Scour CriticalNot applicable

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length128.0 ft (39 m)
Max Span56.1 ft (17.1 m)
Deck Width44.3 ft (13.5 m)
Deck Area526.5 sq m
Main Spans3
Year Built1971

Traffic

Avg Daily Traffic2,137 (2023)
Truck Traffic27%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last Inspection723
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberI00094159+06481

Nearby Bridges