Robert Meyer No.1 Reservoir Report

Last Updated: December 9, 2025

Robert Meyer No.1 is a privately owned dam located in Ziebach, South Dakota, along the TR MOREAU river.


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Summary

Built in 1954, this earth dam stands at a height of 21 feet and has a storage capacity of 122 acre-feet. Despite being regulated by the South Dakota Department of Environment and Natural Resources, it is classified as having a low hazard potential and is currently rated as "Not Rated" in terms of its condition assessment.

The dam, managed by the Natural Resources Conservation Service, serves various purposes but lacks specific details on its primary function. With a maximum discharge capacity of 3000 cubic feet per second, this structure plays a crucial role in water resource management and flood control in the region. Although its emergency preparedness measures are currently not fully assessed, the dam is inspected, permitted, and enforced by state regulatory agencies, ensuring its operational safety and compliance with standards.

Robert Meyer No.1 is a significant infrastructure in South Dakota, contributing to water management efforts in the area. Its location, design, and historical significance make it a noteworthy site for water resource and climate enthusiasts. As it continues to be monitored and maintained, the dam remains a key component in safeguarding the local community from potential hazards and contributing to sustainable water usage in the region.

Year Completed

1954

Dam Length

400

Dam Height

21

River Or Stream

TR MOREAU

Primary Dam Type

Earth

Hydraulic Height

21

Nid Storage

122

Hazard Potential

Low

Nid Height

21
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.