Leland Edwards Reservoir Report
Nearby: R.A. Gebracht Herman Van Den Berg
Last Updated: December 13, 2025
Leland Edwards dam, located in South Dakota along the TR Moreau River, was completed in 1955 and is owned privately.
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Summary
This earth dam stands at a height of 15 feet and has a length of 590 feet, providing storage for 97 acre-feet of water. With a low hazard potential and a condition assessment of "Not Rated," the dam is regulated by the South Dakota Department of Environment and Natural Resources (DENR) and undergoes regular inspections, permitting, and enforcement.
Managed by the Natural Resources Conservation Service, Leland Edwards serves as a vital structure for water resource management in the region, offering flood control and water storage capabilities. The dam's maximum discharge capacity is 700 cubic feet per second, with a normal storage capacity of 69 acre-feet. Although the dam's condition has not been formally assessed, its low hazard potential indicates that it poses minimal risk to surrounding areas in the event of a breach or failure.
As an essential component of the local water infrastructure, Leland Edwards plays a crucial role in maintaining water security and climate resilience in the Perkins County, South Dakota area. With its modest size and operational history, the dam continues to fulfill its purpose of water storage and flood management, contributing to the overall sustainability of the region's water resources.
Year Completed |
1955 |
Dam Length |
590 |
Dam Height |
15 |
River Or Stream |
TR MOREAU RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
15 |
Nid Storage |
97 |
Hazard Potential |
Low |
Nid Height |
15 |
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.
Leland Edwards