Dachau Reservoir Report
Nearby: Skorupa Berland Skorupa Berland
Last Updated: December 5, 2025
Dachau, located in Loma, Montana, is a privately owned earth dam completed in 1960 for fire protection, stock, and small fish pond purposes.
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Summary
Situated on the South Pondera Coulee, this dam has a height of 15 feet and a storage capacity of 69 acre-feet. With a low hazard potential and not yet rated condition assessment, Dachau serves as a vital water resource in Pondera County, Montana.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), Dachau is regulated, permitted, inspected, and enforced by the state, ensuring its safety and compliance with regulations. The dam's primary purpose of fire protection highlights its importance in protecting the surrounding area from wildfires and providing water for livestock and recreational fishing. Despite its low hazard potential, Dachau plays a crucial role in water management and conservation efforts in the region.
With a location in Congressional District 00, Montana, Dachau is overseen by Representative Greg Gianforte (R) and the Omaha District of the US Army Corps of Engineers. While the dam has not been assessed for emergency action plans or risk management measures, its presence on the South Pondera Coulee contributes to the overall water infrastructure and climate resilience of the area. As a key component of the water resource network in Pondera County, Dachau underscores the importance of sustainable water management practices for future generations.
Year Completed |
1960 |
Dam Length |
100 |
Dam Height |
15 |
River Or Stream |
SOUTH PONDERA COULEE |
Primary Dam Type |
Earth |
Hydraulic Height |
15 |
Nid Storage |
69 |
Hazard Potential |
Low |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Teton River Near Dutton Mt
|
83cfs |
Marias River Near Shelby Mt
|
305cfs |
Marias River Near Chester Mt
|
249cfs |
Lake Creek Near Power Mt
|
30cfs |
Muddy Creek At Vaughn Mt
|
86cfs |
Sun River Near Vaughn Mt
|
2680cfs |
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.
Dachau