Ray Martinmaas Dam

Hand County, South Dakota

River/Stream: Matter Creek

Low Hazard

Failure would cause minimal damage

Key Facts

Dam Type
Earth
Height
17 ft
Dam Length
388 ft
Reservoir Storage
86 acre-ft
Year Completed
2022
Primary Purpose
Recreation
Owner Type
Private
Max Discharge
990 cfs

Condition Assessment

Not Rated

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

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

Location

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Quick Stats

NID ID
SD02651
State
South Dakota (SD)
Coordinates
44.84846, -99.14057
Age
4 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.