County Road 430 over Dunlap Creek 059

Fair Condition75 years old100 vehicles/day

Location

StateMontana
CountyRichland
Location3m NW Savage
CarriesCounty Road 430
CrossesDunlap Creek 059
Coordinates47.47503, -104.35881

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Channel/Waterway7 (Good)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length30.5 ft (9.3 m)
Max Span29.9 ft (9.1 m)
Deck Width20.3 ft (6.2 m)
Deck Area57.7 sq m
Main Spans1
Year Built1951

Traffic

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

Inspection & Ownership

Last Inspection223
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberL42430001+04001

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