Old HWY 312 over Seven Mile Creek 168

Fair Condition79 years old7,544 vehicles/day

Location

StateMontana
CountyYellowstone
Location5m SW Huntley
CarriesOld HWY 312
CrossesSeven Mile Creek 168
Coordinates45.87153, -108.42485

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure5 (Fair)
Substructure6 (Satisfactory)
Channel/Waterway5 (Fair)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length25.9 ft (7.9 m)
Max Span24.9 ft (7.6 m)
Deck Width32.2 ft (9.8 m)
Deck Area77.4 sq m
Main Spans1
Year Built1947

Traffic

Avg Daily Traffic7,544 (2023)
Truck Traffic1%
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 NumberL56788006+05001

Nearby Bridges