I 90 over Clark Fork River

Fair Condition50 years old100 vehicles/day

Location

StateMontana
CountyMineral
Location2.5m W Superior
CarriesI 90
CrossesClark Fork River
Coordinates47.20794, -114.93498

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Channel/Waterway6 (Satisfactory)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length544.9 ft (166.1 m)
Max Span180.1 ft (54.9 m)
Deck Width44.3 ft (13.5 m)
Deck Area2242.3 sq m
Main Spans4
Year Built1976

Traffic

Avg Daily Traffic100 (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+01801

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