Iversen Number 2 Reservoir Report
Nearby: Iversen Dam Iversen Number 3
Last Updated: December 13, 2025
Iversen Number 2 is a privately-owned earth dam located in Jones, South Dakota, along the TR-Bad River.
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Summary
Completed in 1953 by the Natural Resources Conservation Service, this dam has a height of 27 feet and a length of 750 feet, providing a storage capacity of 65 acre-feet. While the dam is state-regulated and regularly inspected, it has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment.
With a maximum discharge capacity of 1323 cubic feet per second, Iversen Number 2 serves as a vital structure for water resource management in the area. Despite its age, the dam continues to play a crucial role in flood control and irrigation purposes for the surrounding community. As a climate enthusiast, understanding the design and functionality of this dam can shed light on the intersection of water resources and climate resilience in the region.
As water resource and climate enthusiasts, exploring the details of Iversen Number 2 provides valuable insight into the infrastructure that supports sustainable water management practices in South Dakota. From its construction history to its current regulatory status, this dam exemplifies the importance of maintaining and monitoring critical structures to ensure the safety and resilience of water resources in the face of changing climate conditions.
Year Completed |
1953 |
Dam Length |
750 |
Dam Height |
27 |
River Or Stream |
TR-BAD RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
27 |
Nid Storage |
65 |
Hazard Potential |
Low |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Iversen Number 2