J. Moeller 1 Reservoir Report
Nearby: Herman Moeller Dale Swedland 1
Last Updated: December 13, 2025
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Summary
Moeller 1 is a private earth dam located in Tripp, South Dakota, along the White River off stream. Built in 1953, this dam stands at a height of 27 feet with a length of 268 feet, providing a storage capacity of 40 acre-feet. Managed and regulated by the South Dakota Department of Environment and Natural Resources, this structure plays a crucial role in water resource management in the area.
With a low hazard potential and a current condition assessment of "Not Rated," J. Moeller 1 has been regularly inspected and is equipped with emergency action plans in case of any unforeseen events. Despite its age, the dam continues to serve its primary purpose effectively, ensuring water supply and flood control for the surrounding community. The Natural Resources Conservation Service was responsible for the design of this essential infrastructure.
As water resource and climate enthusiasts, the data on J. Moeller 1 highlights the importance of maintaining and monitoring critical infrastructure to safeguard water resources and mitigate potential risks. With regulatory oversight and inspection protocols in place, this dam stands as a testament to responsible management practices in ensuring the safety and sustainability of water systems in South Dakota.
Year Completed |
1953 |
Dam Length |
268 |
Dam Height |
27 |
River Or Stream |
WHITE RIVER OFF STREAM |
Primary Dam Type |
Earth |
Hydraulic Height |
27 |
Nid Storage |
40 |
Hazard Potential |
Low |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
White River Near White River
|
42cfs |
Little White R Below White River Sd
|
141cfs |
White R Near Oacoma Sd
|
105cfs |
Keya Paha R Near Keyapaha Sd
|
33cfs |
Little White R Near Rosebud Sd
|
96cfs |
Keya Paha R At Wewela Sd
|
54cfs |
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.
J. Moeller 1