James Petik No.1 Reservoir Report

Last Updated: December 6, 2025

James Petik No.1 is a private dam located in Corson, South Dakota, with a fascinating history dating back to its completion in 1948.


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Summary

This earth dam stands at a height of 19 feet, with a length of 580 feet, providing a maximum storage capacity of 103 acre-feet. Situated on the TR-GRAND river or stream, this dam is regulated by the South Dakota Department of Environment and Natural Resources (DENR) and has a low hazard potential.

Managed by the Natural Resources Conservation Service, James Petik No.1 plays a crucial role in water resource management in the region, with a normal storage capacity of 86 acre-feet and a maximum discharge of 3,328 cubic feet per second. Despite its age, the dam is currently rated as 'Not Rated' in terms of condition assessment, emphasizing the importance of regular inspections and maintenance to ensure its continued safety and functionality. With Dusty Johnson (R) as the local congressional representative overseeing the area, the dam serves as a valuable asset for both water supply and flood control in the region.

As a key infrastructure in South Dakota's water resource system, James Petik No.1 highlights the intersection of climate resilience and water management. With its strategic location and regulated status, the dam exemplifies the importance of proactive risk management and emergency preparedness in the face of changing climate patterns. As water resource and climate enthusiasts, understanding the role of dams like James Petik No.1 is essential in safeguarding our communities and ecosystems in the midst of environmental challenges.

Year Completed

1948

Dam Length

580

Dam Height

19

River Or Stream

TR-GRAND

Primary Dam Type

Earth

Hydraulic Height

19

Nid Storage

103

Hazard Potential

Low

Nid Height

19
       
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.