West Fork Bitterroot (Painted Rocks)

Ravalli County, Montana (near DARBY)

River/Stream: WEST FORK OF BITTERROOT

High Hazard

Failure would likely cause loss of life

Key Facts

Dam Type
Earth
Height
143 ft
Dam Length
800 ft
Reservoir Storage
45,100 acre-ft
Year Completed
1940
Primary Purpose
Irrigation
Owner Type
State
Max Discharge
3,300 cfs

Condition Assessment

PoorLast inspected: 2024-06-18

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

Condition Assessment: Poor — This describes the current physical condition of the dam based on the most recent inspection.

Location

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Quick Stats

NID ID
MT00019
State
Montana (MT)
Coordinates
45.71740, -114.28140
Age
86 years

Nearby Dams

External Resources

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.