I 90 over Clark Fork River

Fair Condition66 years old3,825 vehicles/day

Location

StateMontana
CountyMineral
Location1.9m E Superior
CarriesI 90
CrossesClark Fork River
Coordinates47.17359, -114.86372

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure5 (Fair)
Substructure7 (Good)
Channel/Waterway6 (Satisfactory)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialSteel Continuous
DesignGirder and Floorbeam
Total Length800.9 ft (244.1 m)
Max Span190.0 ft (57.9 m)
Deck Width30.2 ft (9.2 m)
Deck Area2245.7 sq m
Main Spans4
Year Built1960 (reconstructed 2012)

Traffic

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

Inspection & Ownership

Last Inspection623
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberI00090049+03972

Nearby Bridges

I 90 over Clark Fork River 0.0 mi Fair I 90 over Cedar Creek 0.3 mi Fair I 90 over Cedar Creek 0.3 mi Good Diamond Match RD over Cedar Creek 0.3 mi Good Diamond Match RD over Rr 1.3 mi Fair I 90 over Int Superior 1.8 mi Good I 90 over Int Superior 1.8 mi Good River ST N over Clark Fork 003 2.0 mi Fair Upham Gulch RD over Cedar Creek 051 2.5 mi Good No Data Entered over Trout Creek 2.7 mi Fair