C. Iverson Reservoir Report
Nearby: Hnot Ratedley C.W. Stewart
Last Updated: December 13, 2025
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Summary
Iverson is a private earth dam located in Potter, South Dakota, along the TR-CHEYENNE CREEK. Built in 1947 by the Natural Resources Conservation Service, this dam stands at a height of 33 feet and has a storage capacity of 145 acre-feet, with a normal storage level of 84 acre-feet. Despite its age, C. Iverson has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. The dam has a maximum discharge capacity of 520 cubic feet per second and is regulated by the South Dakota Department of Environment and Natural Resources.
This dam plays a vital role in water resource management in the region, providing flood control and water storage benefits to the surrounding area. The dam is inspected, permitted, and regulated by the state, ensuring its safety and reliability for the community it serves. With its proximity to the St. Paul District of the US Army Corps of Engineers, C. Iverson stands as a testament to the importance of sustainable water infrastructure in the face of changing climate patterns.
As climate change continues to impact water resources and infrastructure, the role of dams like C. Iverson becomes increasingly crucial in managing water availability and mitigating flood risks. With its long history of service and state-regulated maintenance, C. Iverson stands as a resilient structure in the face of evolving climate challenges. As water resource and climate enthusiasts, we must continue to support and invest in sustainable water infrastructure like C. Iverson to ensure the resilience of our communities in the face of a changing climate.
Year Completed |
1947 |
Dam Length |
265 |
Dam Height |
33 |
River Or Stream |
TR-CHEYENNE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
33 |
Nid Storage |
145 |
Hazard Potential |
Low |
Nid Height |
33 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Moreau R Near Whitehorse Sd
|
35cfs |
Oak Cr Near Wakpala Sd
|
10cfs |
Grand R At Little Eagle Sd
|
47cfs |
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.
C. Iverson