Singletary Dam Reservoir Report
Nearby: Sd Noname 146 Sd Noname 145
Last Updated: December 13, 2025
Singletary Dam, located in Jackson, South Dakota, along Franklin Creek, stands as a vital water resource structure in the region.
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Summary
Completed in 1976, this earth dam is owned and regulated by a private entity, showcasing a commitment to water management and safety. With a height of 25 feet and a storage capacity of 150 acre-feet, the dam serves to control the flow of water and provide essential irrigation and flood protection to the surrounding area.
Despite its low hazard potential, Singletary Dam is subject to regular state inspections and enforcement, ensuring its structural integrity and functionality. The dam features an uncontrolled spillway with a width of 200 feet, allowing for controlled release of excess water during times of heavy rain or flooding. In addition, the dam's moderate risk assessment highlights the importance of ongoing risk management measures to prevent any potential hazards and maintain the safety of the surrounding community and environment.
With Congressman Dusty Johnson representing the area in Congress, Singletary Dam plays a crucial role in water resource management and climate resilience efforts in South Dakota. As enthusiasts of water resources and climate change, it is essential to recognize the significance of structures like Singletary Dam in safeguarding our communities and natural landscapes against the impacts of changing weather patterns and increasing water demands.
Year Completed |
1976 |
Dam Length |
400 |
Dam Height |
25 |
River Or Stream |
FRANKLIN CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Drainage Area |
12 |
Nid Storage |
150 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
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.
Singletary Dam