King Dam No. 2 Reservoir Report

Last Updated: December 5, 2025

King Dam No.


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Summary

2, located in Haakon, South Dakota, is a privately owned earth dam constructed in 1954 with a height of 18 feet and a length of 1160 feet. Situated on the TR-Bad River, the dam provides essential water resource management for the region, with a normal storage capacity of 133 acre-feet and a maximum storage of 218 acre-feet. Despite its crucial role in regulating water flow and storage, the dam is currently assessed as having a high hazard potential and poor condition.

Managed by the Natural Resources Conservation Service, King Dam No. 2 is subject to state regulations and inspections, ensuring its structural integrity and safety. The dam has a history of modifications, with the last inspection conducted in November 2020. With a hazard potential rating of high, stakeholders and authorities must remain vigilant in monitoring and maintaining the dam to reduce potential risks and ensure public safety in the event of emergencies.

For water resource and climate enthusiasts, King Dam No. 2 serves as a focal point for understanding the intersection of infrastructure, environmental stewardship, and climate resilience. As a vital component of the region's water management system, the dam's condition and regulatory oversight are crucial factors in safeguarding the surrounding community and ecosystems. Ongoing monitoring and risk assessment efforts are imperative to address the dam's current poor condition and mitigate potential hazards, underscoring the importance of proactive maintenance and emergency preparedness in the face of changing climate dynamics.

Year Completed

1954

Dam Length

1160

Dam Height

18

River Or Stream

TR-BAD RIVER

Primary Dam Type

Earth

Hydraulic Height

18

Drainage Area

2

Nid Storage

218

Hazard Potential

High

Nid Height

18
       
Seasonal Comparison

Weather Forecast

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.