Holter Dam

Lewis and Clark County, Montana (near Craig, MT)

River/Stream: Missouri River

High Hazard

Failure would likely cause loss of life

Key Facts

Dam Type
Gravity
Height
124 ft
Dam Length
1,364 ft
Reservoir Storage
306,000 acre-ft
Year Completed
1918
Primary Purpose
Hydroelectric
Owner Type
Private
Max Discharge
110,000 cfs

Condition Assessment

SatisfactoryLast inspected: 2021-08-02

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

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

Location

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Quick Stats

NID ID
MT00559
State
Montana (MT)
Coordinates
46.99130, -112.00470
Age
108 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.