Hattel Dam Reservoir Report
Last Updated: December 8, 2025
Hattel Dam, located in South Dakota along the White Clay Creek, was completed in 2011 by Konechne Eng.
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Summary
as an earth dam standing at a height of 17 feet. Owned privately, the dam is regulated by the South Dakota Department of Environment and Natural Resources (DENR) and is subject to state jurisdiction, permitting, inspection, and enforcement. With a storage capacity of 157 acre-feet and a maximum discharge of 2180 cubic feet per second, Hattel Dam serves as a vital water resource infrastructure in the region.
Despite being categorized as having a low hazard potential and a moderate risk level, the condition of Hattel Dam has not been officially assessed. The dam features an uncontrolled spillway with a width of 75 feet and no outlet gates. While the dam has not been modified in recent years and does not have any associated structures, its primary purpose and specific purposes are not specified. With its strategic location and importance in water resource management, Hattel Dam is an essential asset for climate enthusiasts and water resource professionals to monitor and evaluate for its continued safety and effectiveness.
Year Completed |
2011 |
Dam Height |
17 |
River Or Stream |
WHITE CLAY CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
17 |
Drainage Area |
1 |
Nid Storage |
157 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
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.
Hattel Dam