Overberg Wpa #1 Reservoir Report
Nearby: Overberg Wpa #2 Schultz-Ringer Wpa
Last Updated: December 13, 2025
Located in Roberts, South Dakota, the Overberg Wpa #1 is a Federal-owned earth dam completed in 1979 with a height of 8 feet and a length of 150 feet.
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Summary
This dam controls the flow of the TRIB. BUFFALO LAKE tributary and provides a storage capacity of 300 acre-feet, with a maximum discharge rate of 25 cubic feet per second. Despite its low hazard potential and current "Not Rated" condition assessment, the dam does not have a state regulatory agency overseeing its operations, inspections, or enforcement.
The Overberg Wpa #1 is under the jurisdiction of the St. Paul District of the US Army Corps of Engineers and is not subject to state permitting or inspection. This dam serves no primary purpose and is not associated with any other structures. While it meets guidelines for emergency action plans, there is no information available on the preparation or revision dates of these plans, as well as the existence of inundation maps or risk assessments. The dam's risk management measures, DSAC assignment, and contact information for emergencies are also not listed in the provided data.
For water resource and climate enthusiasts, the Overberg Wpa #1 presents an intriguing case study of a federally-owned dam in South Dakota with limited oversight and maintenance information. With its relatively low hazard potential and undisclosed condition assessment, this earth dam stands as a testament to the complexities of managing water infrastructure in a decentralized regulatory environment. Further research and analysis could shed light on the operational challenges and risk mitigation strategies associated with dams like Overberg Wpa #1 in the face of changing climate conditions and increasing demands on water resources.
Year Completed |
1979 |
Dam Length |
150 |
Dam Height |
8 |
River Or Stream |
TRIB. BUFFALO LAKE |
Primary Dam Type |
Earth |
Hydraulic Height |
8 |
Nid Storage |
300 |
Hazard Potential |
Low |
Nid Height |
8 |
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.
Overberg Wpa #1