Riverside RD over Mill Creek 148

Fair Condition37 years old100 vehicles/day

Location

StateMontana
CountyFlathead
Location1m SE Creston
CarriesRiverside RD
CrossesMill Creek 148
Coordinates48.17545, -114.13186

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure6 (Satisfactory)
Substructure7 (Good)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete
DesignChannel Beam
Total Length50.9 ft (15.5 m)
Max Span50.9 ft (15.5 m)
Deck Width27.9 ft (8.5 m)
Deck Area131.8 sq m
Main Spans1
Year Built1989

Traffic

Avg Daily Traffic100 (2025)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last Inspection423
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberL15096001+01001

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