Lower Twin Lakes

Ravalli County, Montana (near Hamilton)

River/Stream: Lost Horse Creek

Low Hazard

Failure would cause minimal damage

Key Facts

Dam Type
Earth
Height
20 ft
Dam Length
318 ft
Reservoir Storage
345 acre-ft
Year Completed
1916
Primary Purpose
Irrigation
Owner Type
Private
Max Discharge
200 cfs

Condition Assessment

Not Available

Hazard Classification: Low — This describes the potential consequences of dam failure, not the likelihood of failure.

Condition Assessment: Not Available — This describes the current physical condition of the dam based on the most recent inspection.

Location

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Quick Stats

NID ID
MT01167
State
Montana (MT)
Coordinates
46.15163, -114.49811
Age
110 years

Data sourced from the National Inventory of Dams (NID). Information may not reflect the most current status of this dam. Hazard classification reflects potential consequences of failure, not the likelihood of failure or the current condition.