US 191 Fh 42 over Gallatin River

Fair Condition74 years old8,952 vehicles/day

Location

StateMontana
CountyGallatin
Location4m NE Big Sky
CarriesUS 191 Fh 42
CrossesGallatin River
Coordinates45.28187, -111.22561

Condition Ratings

Overall ConditionFair
Deck5 (Fair)
Superstructure7 (Good)
Substructure6 (Satisfactory)
Channel/Waterway6 (Satisfactory)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length160.1 ft (48.8 m)
Max Span60.0 ft (18.3 m)
Deck Width33.1 ft (10.1 m)
Deck Area492.9 sq m
Main Spans3
Year Built1952

Traffic

Avg Daily Traffic8,952 (2023)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last Inspection125
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberP00050049+08111

Nearby Bridges