Hedman #2 Reservoir Report
Nearby: Hayes Neuharth Dam #2
Last Updated: December 6, 2025
Hedman #2 is a privately owned earth dam located in Stanley, South Dakota, along a tributary of the Bad River.
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Summary
Built in 1968, this dam stands at a height of 18 feet and has a length of 500 feet, with a storage capacity of 500 acre-feet. It is regulated by the South Dakota Department of Environment and Natural Resources (DENR), with state permitting, inspection, and enforcement processes in place to ensure its safety and compliance with regulations.
Despite being classified as having a low hazard potential, the condition of Hedman #2 is currently not rated, indicating a need for further assessment. Emergency action plans and risk management measures are not fully documented, which raises concerns about preparedness in case of emergencies. The dam does not fall under the jurisdiction of the US Army Corps of Engineers, highlighting the importance of state oversight and regulation in maintaining the safety and integrity of this vital water resource infrastructure.
For water resource and climate enthusiasts, Hedman #2 serves as a fascinating case study in the management and regulation of privately owned dams. Its location in a rural area underscores the importance of state agencies like DENR in overseeing dam safety and ensuring compliance with regulatory standards. As discussions around climate change and water resource management continue to evolve, the condition and management of dams like Hedman #2 will be critical in safeguarding communities and ecosystems from potential risks and hazards.
Year Completed |
1968 |
Dam Length |
500 |
Dam Height |
18 |
River Or Stream |
TRIB. BAD RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
18 |
Nid Storage |
500 |
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.
Hedman #2