I 90 over Sep L Street

Fair Condition58 years old10,616 vehicles/day

Location

StateMontana
CountyGallatin
LocationBozeman
CarriesI 90
CrossesSep L Street
Coordinates45.69151, -111.02447

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure7 (Good)
Substructure6 (Satisfactory)
Scour CriticalNot applicable

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length143.0 ft (43.6 m)
Max Span61.4 ft (18.7 m)
Deck Width41.0 ft (12.5 m)
Deck Area545 sq m
Main Spans3
Year Built1968

Traffic

Avg Daily Traffic10,616 (2023)
Truck Traffic12%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last Inspection524
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberI00090308+00001

Nearby Bridges