Brunskill Number 1 Reservoir Report
Nearby: Esmay And Sandy #3 Wedean Number 3
Last Updated: December 8, 2025
Brunskill Number 1 is a privately-owned earth dam located in Jones, South Dakota, along the TR-White River.
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Summary
Constructed in 1953 by the Natural Resources Conservation Service, this dam stands at a height of 34 feet and has a length of 237 feet, providing a maximum storage capacity of 31 acre-feet. With a low hazard potential and its condition not yet rated, this dam serves as a vital water resource infrastructure in the region.
Managed by the South Dakota Department of Environment and Natural Resources, Brunskill Number 1 is subject to state regulations, permitting, inspection, and enforcement. While the dam's emergency action plan and risk assessment details are not provided, its location within a rural area suggests the importance of maintaining its structural integrity to safeguard local communities and ecosystems from potential flooding events.
With a designated spillway width and maximum discharge capacity of 315 cubic feet per second, Brunskill Number 1 plays a crucial role in water management and flood control in the region. As climate change continues to impact water resources, ensuring the proper maintenance and monitoring of dams like Brunskill Number 1 is essential for resilience and adaptation to a changing climate.
Year Completed |
1953 |
Dam Length |
237 |
Dam Height |
34 |
River Or Stream |
TR-WHITE RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
34 |
Nid Storage |
31 |
Hazard Potential |
Low |
Nid Height |
34 |
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.
Brunskill Number 1