Arthnot Rated W. Holzwarth Reservoir Report
Nearby: Nagel Bros. Bartels Dam
Last Updated: December 14, 2025
Arthnot Rated W.
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Summary
Holzwarth, located in Potter, South Dakota, is a privately owned earth dam constructed in 1936 on TR-Cheyenne Creek. Standing at a height of 15 feet and a length of 385 feet, this dam has a storage capacity of 132 acre-feet, with a normal storage level of 77 acre-feet. The dam is regulated by the South Dakota Department of Environment and Natural Resources (DENR), with state permitting, inspection, and enforcement in place to ensure its safety and compliance.
Despite being classified as having a low hazard potential, the condition of Arthnot Rated W. Holzwarth is currently marked as "Not Rated." This suggests that a thorough assessment of its structural integrity and operational functionality may be needed to determine its overall safety and maintenance requirements. The dam does not have an Emergency Action Plan (EAP) in place, and important details such as the last inspection date, inspection frequency, and emergency preparedness measures are currently unavailable.
For water resource and climate enthusiasts, Arthnot Rated W. Holzwarth presents an intriguing case study in dam infrastructure management. With its historical significance dating back to the 1930s and its ongoing regulatory oversight by the state, there is a potential for further research and analysis to better understand the dam's role in water management and environmental stewardship. As efforts continue to monitor and assess the condition of this earth dam, it will be crucial to ensure its long-term sustainability and resilience in the face of changing climate conditions and water resource demands.
Year Completed |
1936 |
Dam Length |
385 |
Dam Height |
15 |
River Or Stream |
TR-CHEYENNE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
15 |
Nid Storage |
132 |
Hazard Potential |
Low |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Moreau R Near Whitehorse Sd
|
35cfs |
Oak Cr Near Wakpala Sd
|
10cfs |
Grand R At Little Eagle Sd
|
47cfs |
Bad R Near Fort Pierre Sd
|
7cfs |
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.
Arthnot Rated W. Holzwarth