Hix #2 Reservoir Report

Last Updated: April 29, 2026

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Hix #2 is a privately owned dam located in Jones, South Dakota, along a tributary of the White River.


Summary

This earth dam stands at 26 feet in height and spans 360 feet in length, with a storage capacity of 51 acre-feet. Completed in 1959, the dam is regulated by the South Dakota Department of Environment and Natural Resources, with state permitting, inspection, and enforcement in place to ensure compliance and safety.

Although classified as having a low hazard potential, the condition assessment of Hix #2 has not been rated. Emergency action preparedness, including the development of an Emergency Action Plan, has not been reported. With no identified risk management measures in place, there is a need for further evaluation and planning to address any potential risks associated with the dam. Overall, Hix #2 presents an interesting case study for water resource and climate enthusiasts interested in the management and regulation of dams in South Dakota.

15-Day Long Term Forecast


Year Completed

1959

Dam Length

360

Dam Height

26

River Or Stream

TRIB. WHITE RIVER

Primary Dam Type

Earth

Hydraulic Height

26

Nid Storage

51

Hazard Potential

Low

Nid Height

26
       
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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