Nelder Ebert No.2 Reservoir Report
Nearby: Nelder Ebert No.1 Nelder Ebert No.3
Last Updated: December 6, 2025
Nelder Ebert No.2 is a privately-owned dam located in Corson, South Dakota, along the TR-GRAND river.
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Summary
Built in 1950, this earth dam stands at 17 feet high and stretches 430 feet in length, with a storage capacity of 86 acre-feet. Despite its low hazard potential, the dam is regulated by the South Dakota Department of Environment and Natural Resources, which oversees permitting, inspection, and enforcement activities to ensure its safe operation.
Managed by the Natural Resources Conservation Service, Nelder Ebert No.2 has not been rated for its condition assessment, and information on emergency action plans and risk management measures is currently unavailable. With a maximum discharge capacity of 372 cubic feet per second, this dam plays a crucial role in water resource management within the region. Although it has not undergone recent inspections, the dam remains a significant structure for flood control and water storage purposes in the area.
As a part of the St. Paul District in South Dakota, Nelder Ebert No.2 serves as a vital infrastructure for managing water resources in the region. While its condition assessment and emergency preparedness are unknown, the dam's low hazard potential and regulatory oversight by the state ensure its continued safe operation. This earth dam exemplifies the importance of maintaining and monitoring critical infrastructure to mitigate potential risks and safeguard the surrounding communities from water-related hazards.
Year Completed |
1950 |
Dam Length |
430 |
Dam Height |
17 |
River Or Stream |
TR-GRAND |
Primary Dam Type |
Earth |
Hydraulic Height |
17 |
Nid Storage |
86 |
Hazard Potential |
Low |
Nid Height |
17 |
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.
Nelder Ebert No.2