Diamond Ring Ranch #5 Reservoir Report
Last Updated: December 6, 2025
Diamond Ring Ranch #5 is a privately owned Earth dam located in Haakon County, South Dakota.
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Summary
Constructed in 1969, this dam sits on the tributary of Big Prairie Dog Creek and serves as a vital water resource in the region. With a height of 18 feet and a storage capacity of 150 acre-feet, the dam plays a crucial role in managing water supply and mitigating flooding risks in the area.
Managed by the South Dakota Department of Agriculture and Natural Resources, Diamond Ring Ranch #5 is regulated, permitted, inspected, and enforced to ensure its structural integrity and safety. Despite being rated as low hazard potential and not assessed for condition, the dam is essential for water management in the region. With a maximum discharge capacity of 810 cubic feet per second, the dam provides crucial support for agricultural activities and environmental sustainability in the area.
While the dam's emergency action plan status and risk assessment details are not provided, its presence is critical for the community's water resource management. With its historical significance and ongoing role in water supply and flood control, Diamond Ring Ranch #5 stands as a testament to the importance of infrastructure in supporting climate resilience and sustainable water resource management in South Dakota.
Year Completed |
1969 |
Dam Length |
300 |
Dam Height |
18 |
River Or Stream |
TRIB. BIG PRIARE DOG CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
18 |
Nid Storage |
150 |
Hazard Potential |
Low |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Diamond Ring Ranch #5