US 87 over Drainage

Fair Condition87 years old1,067 vehicles/day

Location

StateMontana
CountyFergus
Location2m NW Grass Range
CarriesUS 87
CrossesDrainage
Coordinates47.04375, -108.82797

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Channel/Waterway8 (Very Good)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length38.7 ft (11.8 m)
Max Span19.0 ft (5.8 m)
Deck Width29.9 ft (9.1 m)
Deck Area107.4 sq m
Main Spans2
Year Built1939

Traffic

Avg Daily Traffic1,067 (2023)
Truck Traffic11%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberP00057111+07931

Nearby Bridges