Adrian #2 Reservoir Report
Nearby: Krogman Harold No.1 Krogman #1
Last Updated: December 8, 2025
Adrian #2 is a privately owned dam located in Mellette, South Dakota, with a rich history dating back to its completion in 1956.
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Summary
This earth dam stands at a height of 26 feet and has a storage capacity of 37 acre-feet, serving the primary purpose of water resource management. Situated on the TR Little White River offstream, Adrian #2 is regulated by the South Dakota Department of Environment and Natural Resources (DENR) and is subject to state permitting, inspection, and enforcement.
Despite being classified as having a low hazard potential, Adrian #2's condition assessment is listed as "Not Rated," highlighting potential areas for improvement and maintenance. The dam's emergency action plan status, risk assessment, and management measures are currently marked as unspecified, pointing to the importance of ongoing monitoring and preparedness for any potential emergencies or hazards. With its location in a picturesque natural setting, Adrian #2 serves as a reminder of the vital role that dams play in managing water resources and adapting to the challenges of a changing climate.
For water resource and climate enthusiasts, Adrian #2 presents an intriguing case study of a privately owned dam in South Dakota that plays a crucial role in water management. As discussions around dam safety, regulatory oversight, and emergency preparedness continue to evolve, Adrian #2 stands as a testament to the ongoing efforts to balance human needs with environmental conservation. With its historical significance and potential for further assessment and improvement, Adrian #2 offers a compelling lens through which to explore the intersection of water resources, climate change, and infrastructure resilience.
Year Completed |
1956 |
Dam Length |
408 |
Dam Height |
26 |
River Or Stream |
TR LITTLE WHITE R. OFFSTREAM |
Primary Dam Type |
Earth |
Hydraulic Height |
26 |
Nid Storage |
37 |
Hazard Potential |
Low |
Nid Height |
26 |
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.
Adrian #2