Dolezal No. 2 Reservoir Report

Last Updated: April 29, 2026

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Dolezal No.


Summary

2 is a privately owned earth dam located in Mellette County, South Dakota, along the Little White River tributary. Completed in 1963, this dam stands at a height of 28 feet and has a storage capacity of 45 acre-feet. With a low hazard potential and a condition assessment of "Not Rated," Dolezal No. 2 plays a crucial role in water resource management in the area.

Managed by the South Dakota Department of Environment and Natural Resources (DENR), Dolezal No. 2 is regulated, permitted, inspected, and enforced by the state to ensure its safety and functionality. The dam serves various purposes, although specifics are not provided in the data. Despite its age, Dolezal No. 2 continues to contribute to flood control, water supply, and ecosystem management in the region.

With a primary purpose that remains unspecified, Dolezal No. 2 stands as a testament to the importance of infrastructure in water resource management. As climate change continues to impact water availability and quality, dams like Dolezal No. 2 play a vital role in mitigating risks and providing essential services to communities in South Dakota.

15-Day Long Term Forecast


Year Completed

1963

Dam Length

350

Dam Height

28

River Or Stream

TRIB, LITTLE WHITE RIVER

Primary Dam Type

Earth

Hydraulic Height

28

Nid Storage

45

Hazard Potential

Low

Nid Height

28
       
Seasonal Comparison

5-Day Hourly Forecast Detail

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.
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