Aytolloha #1 Reservoir Report
Last Updated: December 31, 2025
Aytolloha #1 is a privately owned earth dam located in Poplar, Montana, along TR-CHELSEA CREEK.
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Summary
Completed in 1957, this dam serves multiple purposes, including fire protection, stock watering, and small fish pond management. With a height of 30 feet and a storage capacity of 145 acre-feet, Aytolloha #1 is regulated by the Montana Department of Natural Resources and Conservation, ensuring regular inspections and enforcement of safety measures.
Despite its low hazard potential, Aytolloha #1's condition has not been rated, indicating a need for further assessment and potential maintenance. The dam is situated in Roosevelt County, Montana, within Congressional District 00, and falls under the jurisdiction of the Omaha District of the US Army Corps of Engineers. While the dam has not been modified in recent years and lacks certain safety features such as spillways and outlet gates, it remains a vital resource for the local community's water management needs.
Enthusiasts of water resources and climate change will find Aytolloha #1 to be a fascinating case study of a privately owned dam in rural Montana. Its role in providing essential services like fire protection and stock watering, combined with its regulatory oversight by state agencies, highlights the importance of proper dam management in ensuring safe and sustainable water resource utilization. As discussions around climate resilience and water security continue to evolve, Aytolloha #1 serves as a reminder of the critical role that dams play in supporting local communities and ecosystems.
Year Completed |
1957 |
Dam Length |
150 |
Dam Height |
30 |
River Or Stream |
TR-CHELSEA CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
30 |
Nid Storage |
145 |
Hazard Potential |
Low |
Nid Height |
30 |
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.
Aytolloha #1