Ratzburg Reservoir Report
Nearby: Lester Peters #1 Ratzburg,M
Last Updated: December 5, 2025
Ratzburg,D is a privately owned earth dam located in Toole, Montana, on the Fowler Coulee river.
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Summary
Built in 1939, this dam serves multiple purposes including fire protection, stock watering, and small fish pond management. With a height of 20 feet and a length of 375 feet, Ratzburg,D has a storage capacity of 235 acre-feet, making it a vital water resource for the surrounding area.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), Ratzburg,D is regulated, inspected, and enforced to ensure its safety and compliance with state standards. Despite being classified as a low hazard potential structure, its condition assessment remains unrated. The dam has not been modified in recent years, and there is no emergency action plan prepared, suggesting a need for proactive risk management measures.
Located in Congressional District 00 and overseen by the Omaha District of the US Army Corps of Engineers, Ratzburg,D serves as a key infrastructure for water management in the area. Water resource and climate enthusiasts can appreciate the historical significance and functional importance of this dam in providing essential services to the community while highlighting the need for continued monitoring and maintenance to ensure its long-term sustainability.
Year Completed |
1939 |
Dam Length |
375 |
Dam Height |
20 |
River Or Stream |
FOWLER COULEE |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Nid Storage |
235 |
Hazard Potential |
Low |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Marias River Near Shelby Mt
|
305cfs |
Teton River Near Dutton Mt
|
83cfs |
Marias River Near Chester Mt
|
249cfs |
Lake Creek Near Power Mt
|
30cfs |
Cut Bank Creek At Cut Bank Mt
|
138cfs |
Muddy Creek At Vaughn Mt
|
86cfs |
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.
Ratzburg,D