I 90 over Rattler Gulch

Fair Condition55 years old13,081 vehicles/day

Location

StateMontana
CountyGranite
Location4.1m W Drummond
CarriesI 90
CrossesRattler Gulch
Coordinates46.69666, -113.22566

Condition Ratings

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

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length21.0 ft (6.4 m)
Max Span21.0 ft (6.4 m)
Deck Width312.0 ft (95.1 m)
Deck Area608.6 sq m
Main Spans1
Year Built1971

Traffic

Avg Daily Traffic13,081 (2023)
Truck Traffic18%
Lanes On Bridge4

Inspection & Ownership

Last Inspection524
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberI00090149+03001

Nearby Bridges