E. Hoffman No. 7 Reservoir Report
Nearby: E. Hoffman No. 6 E. Hoffman No. 5
Last Updated: December 6, 2025
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Summary
Hoffman No. 7, located in Meade, South Dakota, is a privately owned earth dam completed in 1962 with a height of 14 feet and a length of 625 feet. This dam, situated on the TR MOREAU river, serves multiple purposes including flood control and water storage, with a maximum storage capacity of 98 acre-feet. Managed by the Natural Resources Conservation Service, this dam is regulated and inspected by the South Dakota Department of Environment and Natural Resources, ensuring its safety and compliance with state standards.
Despite its low hazard potential, E. Hoffman No. 7 has not been rated for its current condition, highlighting the need for further assessment and potentially the implementation of risk management measures. The dam has a spillway width and outlet gates for controlled water release, with a maximum discharge capacity of 2000 cubic feet per second. Although the Emergency Action Plan (EAP) status and contact information have not been updated, the dam meets state permitting and inspection requirements, demonstrating a commitment to maintaining its functionality and safety for the surrounding community and environment.
Enthusiasts in water resource management and climate resilience will find E. Hoffman No. 7 an intriguing case study in private dam ownership and state regulation. With its strategic location on the TR MOREAU river and its role in flood control and water storage, this earth dam represents a vital infrastructure piece in South Dakota's water management system. As discussions around dam safety and risk assessment continue, E. Hoffman No. 7 serves as a reminder of the importance of proactive maintenance and monitoring to ensure the long-term sustainability of water resources in the region.
Year Completed |
1962 |
Dam Length |
625 |
Dam Height |
14 |
River Or Stream |
TR MOREAU |
Primary Dam Type |
Earth |
Hydraulic Height |
14 |
Nid Storage |
98 |
Hazard Potential |
Low |
Nid Height |
14 |
Seasonal Comparison
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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. 7