O. Drageset No.2 Reservoir Report
Nearby: O. Drageset No.1 R. Bierman No.2
Last Updated: December 10, 2025
Located on the TR MOREAU River in Ziebach, South Dakota, O.
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Summary
Drageset No.2 is a private earth dam completed in 1953 with a primary purpose that remains unspecified. Standing at 22 feet tall and stretching 650 feet in length, this dam has a storage capacity of 136 acre-feet. The dam has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment.
Despite being under state regulation and jurisdiction, there is limited information available about the inspection frequency, emergency action plan status, and risk assessment of O. Drageset No.2. The dam falls within the St. Paul District of the US Army Corps of Engineers and is not associated with any federal agency owners or fundings. With a maximum discharge capacity of 4830 cubic feet per second, this dam plays a crucial role in managing water resources in the region and contributes to the overall hydrological landscape of South Dakota.
For water resource and climate enthusiasts, O. Drageset No.2 presents an intriguing case study in dam infrastructure management. As a privately owned structure with state regulation, there are questions surrounding its maintenance, emergency preparedness, and long-term sustainability. With its historical significance dating back to the 1950s, this dam serves as a reminder of the importance of monitoring and assessing aging infrastructure in the face of changing climate patterns and water resource demands.
Year Completed |
1953 |
Dam Length |
650 |
Dam Height |
22 |
River Or Stream |
TR MOREAU |
Primary Dam Type |
Earth |
Hydraulic Height |
22 |
Nid Storage |
136 |
Hazard Potential |
Low |
Nid Height |
22 |
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.
O. Drageset No.2