HWY 91 N over Beaverhead River 033

Poor Condition80 years old2,676 vehicles/day

Location

StateMontana
CountyBeaverhead
Location1m N Dillon
CarriesHWY 91 N
CrossesBeaverhead River 033
Coordinates45.23330, -112.63184

Condition Ratings

Overall ConditionPoor
Deck3 (Serious)
Superstructure5 (Fair)
Substructure5 (Fair)
Channel/Waterway6 (Satisfactory)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length149.6 ft (45.6 m)
Max Span57.4 ft (17.5 m)
Deck Width31.8 ft (9.7 m)
Deck Area442.3 sq m
Main Spans3
Year Built1946

Traffic

Avg Daily Traffic2,676 (2023)
Lanes On Bridge2

Inspection & Ownership

Last Inspection523
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberL01311000+06001

Nearby Bridges