Brost Number 7 Reservoir Report
Nearby: Brost Number 8 Sandy Number 1
Last Updated: December 8, 2025
Brost Number 7 is a private earth dam located in Jones, South Dakota, along the TR-WHITERIVER.
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Summary
Built in 1954 by the Natural Resources Conservation Service, this dam stands at a height of 30 feet and has a storage capacity of 85 acre-feet. With a low hazard potential and a condition assessment of 'Not Rated', Brost Number 7 is regulated by the South Dakota Department of Environment and Natural Resources, with inspection, permitting, and enforcement all in place to ensure its safety and compliance.
This dam plays a critical role in water resource management in the region, providing flood control and water storage for agricultural and environmental needs. The dam's maximum discharge capacity of 1071 cubic feet per second ensures that it can effectively manage water flow during periods of high rainfall or snowmelt. Located in a rural area with no associated structures, Brost Number 7 serves as a vital infrastructure for maintaining water quality and quantity in the surrounding area.
As a key component of the water infrastructure in South Dakota, Brost Number 7 is a testament to the importance of proper dam management and regulation. With its historical significance and ongoing role in water resource management, this dam stands as a symbol of the efforts to balance water conservation, agricultural needs, and environmental protection in the region.
Year Completed |
1954 |
Dam Length |
576 |
Dam Height |
30 |
River Or Stream |
TR-WHITERIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
30 |
Nid Storage |
85 |
Hazard Potential |
Low |
Nid Height |
30 |
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.
Brost Number 7