Lester Peters #1 Reservoir Report
Nearby: Ratzburg,M Strudy Dam
Last Updated: December 5, 2025
Lester Peters #1 is a privately owned earth dam located in Loma, Montana, along the TR-Fowler Coulee.
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Summary
Built in 1958 by the USDA NRCS, this dam serves the primary purpose of water supply, with a storage capacity of 54 acre-feet and a maximum discharge of 130 cubic feet per second. With a height of 27 feet and a length of 100 feet, this low hazard potential dam plays a crucial role in managing water resources in the region.
Managed by the DNRC and regulated by the state of Montana, Lester Peters #1 is subject to regular inspections, permitting, and enforcement to ensure its safety and functionality. Despite being in operation for over six decades, the dam's condition is currently not rated, indicating a need for further assessment. As a key infrastructure for water supply in Toole County, it is essential for stakeholders and climate enthusiasts to monitor the dam's performance and potential risks associated with its operation.
In the event of emergencies, the presence of an Emergency Action Plan (EAP) and updated contact information are crucial for swift and effective response measures. While the dam's hazard potential is low, it is important for all relevant parties to ensure that risk management measures are in place and that the dam meets safety guidelines to prevent any potential disasters. With its role in water supply and management, Lester Peters #1 remains a significant structure for water resource enthusiasts and climate advocates in the region.
Year Completed |
1958 |
Dam Length |
100 |
Dam Height |
27 |
River Or Stream |
TR-FOWLER COULEE |
Primary Dam Type |
Earth |
Hydraulic Height |
27 |
Drainage Area |
1.56 |
Nid Storage |
54 |
Hazard Potential |
Low |
Nid Height |
27 |
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.
Lester Peters #1