Louis Bonhorst Number 3 Reservoir Report
Nearby: Louis Bonhorst Number 2 Livermore #1
Last Updated: December 14, 2025
Louis Bonhorst Number 3 is a privately owned dam located in Stanley, South Dakota, along the tributary of the Bad River.
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Summary
Built in 1958, this earth dam stands at a height of 27 feet and has a storage capacity of 16 acre-feet. It is regulated by the South Dakota Department of Environment and Natural Resources (DENR) and is subject to state inspections and enforcement measures to ensure its safety and compliance with regulations.
Managed by the Natural Resources Conservation Service, Louis Bonhorst Number 3 is classified as having a low hazard potential and is currently rated as "Not Rated" in terms of its condition assessment. While the dam has not been evaluated for emergency action planning, it meets state permitting requirements and undergoes regular inspections. The dam plays a crucial role in water resource management in the area, providing storage for irrigation and other purposes along the Bad River tributary.
Although Louis Bonhorst Number 3 may not be a high-risk structure, its presence highlights the importance of proper dam maintenance and regulation in ensuring the safety and sustainability of water resources in the region. With its history dating back to the 1950s, this dam serves as a reminder of the ongoing efforts required to manage water infrastructure effectively in the face of changing climate conditions and evolving regulatory standards.
Year Completed |
1958 |
Dam Length |
270 |
Dam Height |
27 |
River Or Stream |
TRIB. BAD RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
27 |
Nid Storage |
16 |
Hazard Potential |
Low |
Nid Height |
27 |
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.
Louis Bonhorst Number 3