Vesely No.2 Reservoir Report
Nearby: Vesely No.1 Anderson No.1
Last Updated: December 13, 2025
Vesely No.2 is a privately owned earth dam located in Mellette, South Dakota, along the TR White River Offstream.
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Summary
Built in 1966 by the Natural Resources Conservation Service, this dam stands at a height of 26 feet and spans 365 feet in length. With a maximum storage capacity of 26 acre-feet and a normal storage level of 17 acre-feet, Vesely No.2 serves as a vital water resource infrastructure in the region.
The dam is regulated by the South Dakota Department of Environment and Natural Resources (DENR) and is classified as having a low hazard potential. While the condition of Vesely No.2 is currently not rated, it undergoes regular state inspection, permitting, and enforcement to ensure its safety and functionality. The dam plays a crucial role in water management and conservation efforts in the area, contributing to flood control and irrigation purposes.
As a key structure in the St. Paul District of the US Army Corps of Engineers, Vesely No.2 provides essential water storage and discharge functions for the surrounding area. With its strategic location and design, this dam continues to play a significant role in enhancing water security and climate resilience in South Dakota. Its importance in the region's water resource management makes it a noteworthy site for water resource and climate enthusiasts to monitor and study.
Year Completed |
1966 |
Dam Length |
365 |
Dam Height |
26 |
River Or Stream |
TR WHITE RIVER OFFSTREAM |
Primary Dam Type |
Earth |
Hydraulic Height |
26 |
Nid Storage |
26 |
Hazard Potential |
Low |
Nid Height |
26 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
White River Near White River
|
42cfs |
Little White R Below White River Sd
|
141cfs |
Little White R Near Rosebud Sd
|
96cfs |
White R Near Oacoma Sd
|
105cfs |
Keya Paha R Near Keyapaha Sd
|
33cfs |
Bad R Near Fort Pierre Sd
|
7cfs |
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.
Vesely No.2