Porcupine Butte RD over American Fork Creek 002

Fair Condition66 years old100 vehicles/day

Location

StateMontana
CountyWheatland
Location12m S Two Dot
CarriesPorcupine Butte RD
CrossesAmerican Fork Creek 002
Coordinates46.26042, -110.00713

Condition Ratings

Overall ConditionFair
Deck5 (Fair)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Channel/Waterway7 (Good)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length44.0 ft (13.4 m)
Max Span22.0 ft (6.7 m)
Deck Width22.0 ft (6.7 m)
Deck Area89.8 sq m
Main Spans2
Year Built1960 (reconstructed 2006)

Traffic

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

Inspection & Ownership

Last Inspection924
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberL54017001+04001