Viet No.2 Reservoir Report
Nearby: Roy Veit No.4 Tribe No.2
Last Updated: December 8, 2025
Viet No.2 is a private dam located in Ziebach, South Dakota, along the TR MOREAU river.
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Summary
Built in 1962, this Earth-type dam stands at a height of 29 feet and has a storage capacity of 149 acre-feet. With a maximum discharge of 600 cubic feet per second, Viet No.2 serves as a vital water resource for the region, providing water for irrigation, wildlife habitat, and flood control.
Managed by the Natural Resources Conservation Service, Viet No.2 is regulated by the South Dakota Department of Environment and Natural Resources, ensuring that the dam meets state safety and inspection standards. Despite being rated as having a low hazard potential and not having a formal condition assessment, Viet No.2 plays a crucial role in water management in the area. Its significance is further underscored by its location within the St. Paul District of the US Army Corps of Engineers, highlighting its importance in the regional water infrastructure.
As water resource and climate enthusiasts, understanding the key details of dams like Viet No.2 is essential for appreciating the intricate network of water infrastructure that sustains communities and ecosystems. With its history, purpose, and regulatory oversight, Viet No.2 exemplifies the careful balance between harnessing water resources for human benefit while ensuring the safety and sustainability of natural ecosystems.
Year Completed |
1962 |
Dam Length |
330 |
Dam Height |
29 |
River Or Stream |
TR MOREAU |
Primary Dam Type |
Earth |
Hydraulic Height |
29 |
Nid Storage |
149 |
Hazard Potential |
Low |
Nid Height |
29 |
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.
Viet No.2