Jay A. Lake No.5 Reservoir Report
Nearby: Jay A. Lake No.4 Hnot Ratedley
Last Updated: December 13, 2025
Jay A.
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Summary
Lake No.5, located in Potter, South Dakota, is a privately owned earth dam completed in 1955 with a height of 26 feet and a length of 303 feet. Managed by the Natural Resources Conservation Service, this dam has a storage capacity of 104 acre-feet and serves the primary purpose of water resource management. Despite being rated as low hazard potential and not having a condition assessment, it is regulated by the state and undergoes regular inspections and enforcement measures to ensure its safety and functionality.
Situated in the St. Paul District, Jay A. Lake No.5 is a vital structure for the local community, providing irrigation water storage and flood control benefits. With a maximum discharge capacity of 990 cubic feet per second, this dam plays a crucial role in managing water flow in the TR-MISSONot RatedI river or stream. While the dam has not been modified in recent years and lacks specific risk management measures, its presence contributes significantly to the overall water resource management efforts in the area.
As an essential component of the water infrastructure in South Dakota, Jay A. Lake No.5 highlights the importance of private ownership in maintaining and regulating key water structures. With its state-regulated status and consistent operational capabilities, this dam serves as a testament to the collaboration between private owners and governmental agencies in ensuring the sustainability and resilience of water resources in the region.
Year Completed |
1955 |
Dam Length |
303 |
Dam Height |
26 |
River Or Stream |
TR-MISSONot RatedI |
Primary Dam Type |
Earth |
Hydraulic Height |
26 |
Nid Storage |
104 |
Hazard Potential |
Low |
Nid Height |
26 |
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.
Jay A. Lake No.5