Canyon Lake Dam

Pennington County, South Dakota (near RAPID CITY)

River/Stream: RAPID CREEK

High Hazard

Failure would likely cause loss of life

Key Facts

Dam Type
Earth
Height
31 ft
Dam Length
1,325 ft
Reservoir Storage
610 acre-ft
Year Completed
1976
Primary Purpose
Irrigation
Owner Type
Local Government
Max Discharge
50,000 cfs

Condition Assessment

FairLast inspected: 2023-04-09

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

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

Location

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Quick Stats

NID ID
SD02137
State
South Dakota (SD)
Coordinates
44.05821, -103.28846
Age
50 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.