I 90 over Clark Fork River

Fair Condition66 years old3,719 vehicles/day

Location

StateMontana
CountyMineral
Location2.5m W Superior
CarriesI 90
CrossesClark Fork River
Coordinates47.20798, -114.93475

Condition Ratings

Overall ConditionFair
Deck5 (Fair)
Superstructure5 (Fair)
Substructure7 (Good)
Channel/Waterway6 (Satisfactory)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialSteel Continuous
DesignGirder and Floorbeam
Total Length620.7 ft (189.2 m)
Max Span180.1 ft (54.9 m)
Deck Width30.2 ft (9.2 m)
Deck Area1740.6 sq m
Main Spans3
Year Built1960 (reconstructed 2012)

Traffic

Avg Daily Traffic3,719 (2023)
Truck Traffic27%
Lanes On Bridge2

Inspection & Ownership

Last Inspection623
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberI00090045+01802

Nearby Bridges

I 90 over Clark Fork River 0.0 mi Fair I 90 over Clark Fork River 1.5 mi Fair I 90 over Clark Fork River 1.5 mi Poor Southside RD over Dry Creek 002 2.0 mi Good Southside Crossing over Clark Fork 015 2.0 mi Fair I 90 over Int Dry Creek 2.1 mi Fair I 90 over Int Dry Creek 2.1 mi Fair River ST N over Clark Fork 003 2.2 mi Fair I 90 over Int Superior 2.3 mi Good I 90 over Int Superior 2.3 mi Good