I 90 over Sep Coal Mine Road

Good Condition60 years old13,664 vehicles/day

Location

StateMontana
CountyMissoula
LocationMissoula
CarriesI 90
CrossesSep Coal Mine Road
Coordinates46.89751, -114.01370

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure7 (Good)
Scour CriticalNot applicable

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length138.1 ft (42.1 m)
Max Span51.5 ft (15.7 m)
Deck Width40.4 ft (12.3 m)
Deck Area517.8 sq m
Main Spans3
Year Built1966

Traffic

Avg Daily Traffic13,664 (2023)
Truck Traffic9%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last Inspection125
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberI00090103+01641

Nearby Bridges