I 90 over Clark Fork River

Good Condition48 years old5,209 vehicles/day

Location

StateMontana
CountyDeer Lodge
Location2.5m N Opportunity
CarriesI 90
CrossesClark Fork River
Coordinates46.12242, -112.79904

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure7 (Good)
Channel/Waterway7 (Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length86.0 ft (26.2 m)
Max Span85.0 ft (25.9 m)
Deck Width44.3 ft (13.5 m)
Deck Area353.7 sq m
Main Spans1
Year Built1978

Traffic

Avg Daily Traffic5,209 (2023)
Truck Traffic24%
Lanes On Bridge2

Inspection & Ownership

Last Inspection324
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberI00090205+07151

Nearby Bridges