Ebersoll Dam Reservoir Report
Nearby: Thompson Ranch Dam Bert Thompson No.1
Last Updated: December 6, 2025
Ebersoll Dam, located in South Dakota along a tributary of the Cheyenne River, was completed in 1937 and stands at a height of 21 feet with a length of 600 feet.
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Summary
This earth dam serves as a crucial water resource for the area, providing a storage capacity of 252 acre-feet. Despite its age, the dam has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment.
Owned privately and regulated by the South Dakota Department of Environment and Natural Resources, Ebersoll Dam plays a vital role in water management and flood control in the region. With a maximum discharge capacity of 390 cubic feet per second, the dam ensures the safety and stability of the surrounding area. Although not currently rated for its emergency action plan and risk assessment, the dam continues to be a significant asset for water resource enthusiasts and climate advocates interested in sustainable water management practices.
Managed by the Omaha District of the US Army Corps of Engineers, Ebersoll Dam remains a key infrastructure for water supply and environmental conservation. The dam's presence is crucial in maintaining the ecological balance and supporting the local ecosystem. As climate change continues to impact water resources, Ebersoll Dam stands as a testament to the importance of sustainable dam operation and maintenance in safeguarding our water supply for future generations.
Year Completed |
1937 |
Dam Length |
600 |
Dam Height |
21 |
River Or Stream |
TRIBUTARY CHEYENNE RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
21 |
Nid Storage |
252 |
Hazard Potential |
Low |
Nid Height |
21 |
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.
Ebersoll Dam