B. Butler No.1 Reservoir Report
Nearby: Roy Veit No.4 B. Butler No.2
Last Updated: December 7, 2025
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Summary
Butler No.1 is a privately owned dam located in Ziebach, South Dakota, along the TR MOREAU river. Completed in 1946, this earth dam stands at a height of 20 feet and has a length of 1060 feet. With a storage capacity of 182 acre-feet, the dam serves the primary purpose of water resource management in the region. Despite being classified as low hazard potential, the dam's condition assessment is currently listed as "Not Rated".
The South Dakota Department of Environment and Natural Resources regulates B. Butler No.1, ensuring that it meets state permitting, inspection, and enforcement requirements. The dam is not under the jurisdiction of any federal agency and does not receive any federal funding or construction support. The emergency action plan for the dam is not rated as meeting guidelines, indicating potential areas for improvement in emergency preparedness and risk management.
Climate and water resource enthusiasts will appreciate the historical significance and current status of B. Butler No.1. Its location in a rural area and its low hazard potential highlight the importance of proper maintenance and oversight to ensure the safety and effectiveness of this essential water management structure.
Year Completed |
1946 |
Dam Length |
1060 |
Dam Height |
20 |
River Or Stream |
TR MOREAU |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Nid Storage |
182 |
Hazard Potential |
Low |
Nid Height |
20 |
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.
B. Butler No.1