Kolb Dam Reservoir Report
Nearby: Richard Woll Glenn Wishard
Last Updated: December 6, 2025
Kolb Dam, located in Perkins, South Dakota, is a privately owned earth dam that was completed in 1975.
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Summary
The dam stands at a height of 17 feet and has a storage capacity of 83 acre-feet, with a normal storage level of 53 acre-feet. It is situated on a tributary of Rabbit Creek and is regulated by the South Dakota Department of Environment and Natural Resources.
Although Kolb Dam has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment, it is subject to regular state inspections, permitting, and enforcement to ensure its safety and compliance with regulations. The dam has a maximum discharge capacity of 700 cubic feet per second and serves to provide water storage for the surrounding area. Despite its relatively small size, Kolb Dam plays a crucial role in water resource management in the region.
Managed by the Natural Resources Conservation Service, Kolb Dam serves as a vital infrastructure for water conservation and flood control. With its strategic location and design, the dam contributes to the overall resilience of the local water supply system. Climate and water resource enthusiasts can appreciate the importance of Kolb Dam in maintaining a sustainable water management system in Perkins, South Dakota.
Year Completed |
1975 |
Dam Length |
500 |
Dam Height |
17 |
River Or Stream |
TRIB. RABBIT CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
17 |
Drainage Area |
1 |
Nid Storage |
83 |
Hazard Potential |
Low |
Nid Height |
17 |
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.
Kolb Dam