Zebroski Reservoir Report
Nearby: Jensen Dam Joe Schomer 1
Last Updated: December 6, 2025
Zebroski, a privately owned dam located in Hughes County, South Dakota, was completed in 1975 with a primary purpose that is not specified in the data.
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Summary
Standing at a height of 34 feet and stretching 325 feet in length, this earth dam has a storage capacity of 28 acre-feet and a maximum discharge rate of 441 cubic feet per second. Despite its age, Zebroski is classified as having a low hazard potential and has not been rated for its current condition.
Managed by the Natural Resources Conservation Service, Zebroski is regulated and permitted by the South Dakota Department of Environment and Natural Resources. The dam is subject to state inspection, enforcement, and jurisdiction, ensuring that it meets safety and environmental standards. While the specific purposes of the dam are not detailed, its presence on the TRIB. MISSONot RatedI RIVER contributes to the management of water resources in the region. Overall, Zebroski serves as a vital infrastructure for water management in South Dakota, operating under state oversight to protect surrounding communities and the environment.
Year Completed |
1975 |
Dam Length |
325 |
Dam Height |
34 |
River Or Stream |
TRIB. MISSONot RatedI RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
34 |
Nid Storage |
28 |
Hazard Potential |
Low |
Nid Height |
34 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Bad R Near Fort Pierre Sd
|
7cfs |
White River Near White River
|
42cfs |
White R Near Oacoma Sd
|
105cfs |
Little White R Below White River Sd
|
141cfs |
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.
Zebroski