Magnum South Reservoir Report
Nearby: Magnum East Burkhartsmeyer Too
Last Updated: December 20, 2025
Magnum South, also known as Burkhartsmeyer Reservoir, is a privately owned dam located in Hill County, Montana.
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Summary
Built in 1950, the primary purpose of this earthen dam is irrigation, serving the local agricultural community by providing a storage capacity of 711 acre-feet. Situated along the TR-Sage Creek, Magnum South is regulated and inspected by the Montana Department of Natural Resources and Conservation (DNRC), ensuring its structural integrity and operational safety.
With a dam height of 15 feet and a length of 600 feet, Magnum South has a low hazard potential and is currently rated as "Not Rated" in terms of its condition assessment. The dam's normal storage capacity is 364 acre-feet, making it a vital water resource for the surrounding area. Although the dam has not been modified in recent years and lacks certain emergency preparedness measures such as an Emergency Action Plan (EAP), it continues to play a crucial role in supporting local agriculture and water management efforts in the region.
In the picturesque city of Gildford, Montana, Magnum South stands as a testament to the importance of water infrastructure in sustaining communities and ecosystems. As water resource and climate enthusiasts, understanding the significance of dams like Magnum South in regulating water flow, providing irrigation, and ensuring water security is essential for promoting sustainable water management practices in the face of changing climate conditions.
Year Completed |
1950 |
Dam Length |
600 |
Dam Height |
15 |
River Or Stream |
TR-SAGE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
15 |
Nid Storage |
711 |
Hazard Potential |
Low |
Nid Height |
15 |
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.
Magnum South