Diamond Ring Ranch #2 Reservoir Report
Nearby: Sd Noname 251 Sd Noname 284
Last Updated: December 6, 2025
Diamond Ring Ranch #2 is a privately owned earth dam located in Haakon, South Dakota, along Cottonwood Creek.
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Summary
Built in 1973, this dam has a height of 25 feet and a length of 800 feet, with a storage capacity of 420 acre-feet. The dam is under state regulation and inspection by the South Dakota Department of Agriculture and Natural Resources, ensuring its safety and compliance with standards.
Despite being rated as having a low hazard potential and not currently assessed for condition, Diamond Ring Ranch #2 plays a crucial role in water resource management in the region. With a maximum discharge capacity of 1800 cubic feet per second, the dam helps control and regulate the flow of water in Cottonwood Creek, providing essential water supply for agricultural and environmental needs. The dam's design and construction reflect a commitment to sustainable water management practices, contributing to the resilience of the local ecosystem.
As climate change continues to impact water resources, structures like Diamond Ring Ranch #2 become increasingly important for mitigating floods, ensuring water availability, and supporting ecosystem health. By monitoring and maintaining this dam, stakeholders can safeguard against potential risks and adapt to changing hydrological conditions, highlighting the vital intersection of water resource management and climate resilience at the local level.
Year Completed |
1973 |
Dam Length |
800 |
Dam Height |
25 |
River Or Stream |
COTTONWOOD CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Nid Storage |
420 |
Hazard Potential |
Low |
Nid Height |
25 |
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 #2