I 90 over Clark Fork River

Fair Condition59 years old3,825 vehicles/day

Location

StateMontana
CountyMineral
Location6.2m E Superior
CarriesI 90
CrossesClark Fork River
Coordinates47.13138, -114.79684

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure5 (Fair)
Substructure5 (Fair)
Channel/Waterway7 (Good)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialSteel Continuous
DesignGirder and Floorbeam
Total Length756.9 ft (230.7 m)
Max Span180.1 ft (54.9 m)
Deck Width31.8 ft (9.7 m)
Deck Area2237.8 sq m
Main Spans3
Year Built1967

Traffic

Avg Daily Traffic3,825 (2023)
Truck Traffic24%
Lanes On Bridge2

Inspection & Ownership

Last Inspection523
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberI00090053+07232

Nearby Bridges