E. Hoffman No. 4 Reservoir Report
Nearby: E. Hoffman No.9 E. Hoffman No. 2
Last Updated: December 6, 2025
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Summary
Hoffman No. 4 is a privately owned dam located in Meade, South Dakota, along the Moreau River. Built in 1969, this earth dam stands at 22 feet tall and stretches 330 feet in length, with a storage capacity of 69 acre-feet. Managed by the Natural Resources Conservation Service, this dam is state-regulated and undergoes regular inspections, enforcement, and permitting to ensure its safety and compliance with regulations.
Despite being categorized as having a low hazard potential and not currently rated for its condition, E. Hoffman No. 4 remains an essential structure for water resource management in the area. With a maximum discharge capacity of 1300 cubic feet per second, this dam plays a crucial role in flood control and water supply management in the region. While no specific emergency preparedness measures are listed for this dam, its presence and functionality are vital for the surrounding community and ecosystem.
As a passionate water resource and climate enthusiast, the details of E. Hoffman No. 4 offer a fascinating glimpse into the intricate world of dam infrastructure and its impact on local water systems. Understanding the design, purpose, and regulatory oversight of such structures is essential for appreciating the role they play in water conservation and management efforts. The data provided sheds light on the importance of responsible dam ownership, maintenance, and operation in safeguarding both human communities and the natural environment.
Year Completed |
1969 |
Dam Length |
330 |
Dam Height |
22 |
River Or Stream |
MOREAU |
Primary Dam Type |
Earth |
Hydraulic Height |
22 |
Nid Storage |
69 |
Hazard Potential |
Low |
Nid Height |
22 |
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.
E. Hoffman No. 4