Jack Hunt Reservoir Report
Nearby: Clavel No.3 Clavel No.1
Last Updated: December 6, 2025
Jack Hunt is a privately owned dam located in Ziebach, South Dakota, along the TR Cheyenne River.
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Summary
Built in 1956, this earth dam stands at a height of 28 feet and has a length of 470 feet, providing a storage capacity of 203 acre-feet. Despite its low hazard potential and moderate risk assessment, the dam's condition is currently not rated, indicating a need for further assessment and maintenance to ensure its safety and reliability as a water resource in the region.
Managed by the South Dakota Department of Environment and Natural Resources (DENR), Jack Hunt is subject to state regulation, permitting, inspection, and enforcement. The dam's primary purpose and associated structures are not specified, but its role in water management and flood control for the local area is crucial. Located in a remote part of the state, the dam's presence contributes to the overall water infrastructure and climate resilience efforts in South Dakota, under the oversight of the Natural Resources Conservation Service.
While Jack Hunt's emergency action plan status and risk management measures are currently unknown, its overall risk assessment falls within the moderate category. With a designated spillway type of "Uncontrolled" and a maximum discharge capacity of 2135 cubic feet per second, the dam's functionality and safety protocols are integral to mitigating potential flood risks and ensuring the sustainable management of water resources in the St. Paul District. As water resource and climate enthusiasts, staying informed about the condition and management of dams like Jack Hunt is essential for promoting effective water stewardship and resilience in the face of changing environmental conditions.
Year Completed |
1956 |
Dam Length |
470 |
Dam Height |
28 |
River Or Stream |
TR CHEYENNE |
Primary Dam Type |
Earth |
Hydraulic Height |
28 |
Nid Storage |
203 |
Hazard Potential |
Low |
Nid Height |
28 |
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.
Jack Hunt