Richard Woll Reservoir Report
Nearby: Ernest Kolb Kolb Dam
Last Updated: December 6, 2025
Richard Woll is a privately owned earth dam located in Perkins, South Dakota, along the Tributary Moreau River.
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Summary
The dam stands at a height of 19 feet and was completed in 1951, with a storage capacity of 54 acre-feet. Although it has a low hazard potential, the dam is regulated and inspected by South Dakota's Department of Environment and Natural Resources (DENR), ensuring its safety and compliance with state regulations.
Managed by its private owner, Richard Woll serves as a vital water resource for the surrounding area, providing a maximum discharge of 200 cubic feet per second. While the dam's condition is currently not rated, it has not undergone any modifications or assessments in recent years. Despite its low hazard potential, the dam's emergency action plan (EAP) status and risk management measures are currently not specified, highlighting areas for potential improvement in emergency preparedness and response.
Situated within the St. Paul District of the US Army Corps of Engineers, Richard Woll contributes to the overall water management and flood control efforts in the region. With its strategic location and capacity, this earth dam plays a crucial role in safeguarding the local community and ecosystem, making it a key asset for water resource and climate enthusiasts to monitor and support.
Year Completed |
1951 |
Dam Length |
370 |
Dam Height |
19 |
River Or Stream |
TRIB. MOREAU RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
19 |
Nid Storage |
54 |
Hazard Potential |
Low |
Nid Height |
19 |
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.
Richard Woll