V. Miller No.2 Reservoir Report
Nearby: V. Miller No.1 Viet No.1
Last Updated: December 6, 2025
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Summary
Miller No.2 is a privately owned earth dam located in Ziebach, South Dakota, along the TR. of Flint Rock Creek. Built in 1946, this dam stands at a height of 18 feet and has a length of 440 feet. It has a storage capacity of 85 acre-feet and a maximum discharge of 1029 cubic feet per second, serving as a vital water resource in the region.
Despite being designated as a significant hazard potential, the condition assessment of V. Miller No.2 is currently not rated, with the last inspection date recorded in May 1986. The dam is regulated by the South Dakota Department of Agriculture and Natural Resources, with state permitting, inspection, and enforcement in place. While the emergency action plan status and risk assessment measures are not specified, the dam continues to play a crucial role in water management and climate resilience in the region.
As water resource and climate enthusiasts, the data on V. Miller No.2 underscores the importance of monitoring and maintaining infrastructure for sustainable water management. With its significant hazard potential, it is essential for regulatory agencies and dam owners to prioritize regular inspections and risk assessments to ensure the safety and functionality of this critical water resource. The history and specifications of V. Miller No.2 highlight the intersection of water infrastructure, environmental stewardship, and climate adaptation in the face of evolving challenges.
Year Completed |
1946 |
Dam Length |
440 |
Dam Height |
18 |
River Or Stream |
TR. OF FLINT ROCK CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
18 |
Drainage Area |
1 |
Nid Storage |
85 |
Hazard Potential |
Significant |
Nid Height |
18 |
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.
V. Miller No.2