Lone Mountain Trl over W Fork W Gallatin 001

Fair Condition54 years old9,730 vehicles/day

Location

StateMontana
CountyGallatin
Location2m E Big Sky
CarriesLone Mountain Trl
CrossesW Fork W Gallatin 001
Coordinates45.26574, -111.25716

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure7 (Good)
Substructure6 (Satisfactory)
Channel/Waterway8 (Very Good)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length103.0 ft (31.4 m)
Max Span100.1 ft (30.5 m)
Deck Width32.2 ft (9.8 m)
Deck Area307.7 sq m
Main Spans1
Year Built1972

Traffic

Avg Daily Traffic9,730 (2023)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last Inspection724
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberL16064000+03081

Nearby Bridges