Peephole Reservoir Report
Last Updated: December 5, 2025
Peephole, located in Dodson, Chouteau County, Montana, is a privately owned earth dam completed in 1938 for fire protection, stock, and small fish pond purposes.
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Summary
The dam has a height of 10 feet and a length of 100 feet, with a storage capacity of 265 acre-feet. Situated on T-Peoples Creek, Peephole is regulated by the Montana Department of Natural Resources and Conservation (DNRC) and is inspected, permitted, and enforced by state authorities. Despite its low hazard potential, the dam's condition is currently not rated.
The dam's primary purpose, along with its historic significance, makes Peephole an important water resource for the region. With a normal storage capacity of 80 acre-feet, the dam serves as a vital resource for fire protection and livestock watering. While the dam has not been modified in recent years and is not under the jurisdiction of the US Army Corps of Engineers, its role in maintaining the local ecosystem and providing critical water storage highlights its importance in the area's water management infrastructure.
Although Peephole's condition is not currently assessed, its presence on T-Peoples Creek contributes to the overall water management strategy in Chouteau County. With its low hazard potential and regulated status, the dam plays a crucial role in ensuring water security for both agricultural and environmental purposes in the region. As water resource and climate enthusiasts, understanding the significance of Peephole in the local water management system provides insight into the complex network of dams and reservoirs that sustain communities and ecosystems.
Year Completed |
1938 |
Dam Length |
100 |
Dam Height |
10 |
River Or Stream |
T-PEOPLES CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
10 |
Nid Storage |
265 |
Hazard Potential |
Low |
Nid Height |
10 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Big Sandy Creek Near Havre Mt
|
6cfs |
Milk River At Havre Mt
|
42cfs |
Missouri River At Virgelle Mt
|
4290cfs |
Clear Creek Near Chinook Mt
|
21cfs |
Teton River At Loma Mt
|
30cfs |
Marias River Near Loma Mt
|
335cfs |
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.
Peephole