Peila #1 Reservoir Report

Last Updated: December 6, 2025

Peila #1 is a state-owned earth dam located in Kinsey, Montana, along Deadman Creek.


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Summary

Completed in 1945, this dam serves multiple purposes including fire protection, stock, and small fish pond maintenance. With a height of 20 feet and a length of 306 feet, it has a storage capacity of 56 acre-feet and a normal storage of 10 acre-feet. The dam is regulated by the Montana Department of Natural Resources and Conservation (DNRC), ensuring that it meets state inspection, enforcement, and permitting requirements.

Despite its low hazard potential, Peila #1 has not been rated for its condition assessment, and no emergency action plan (EAP) has been prepared for the dam. The dam has not been modified in recent years, and there are no associated structures or outlet gates. Located in Congressional District 00, Montana, it falls under the jurisdiction of the Omaha District of the US Army Corps of Engineers. Water resource and climate enthusiasts will find Peila #1 to be an interesting case study in earth dam construction and management in a rural setting, showcasing the importance of state regulation and inspection to ensure public safety and water resource management.

Year Completed

1945

Dam Length

306

Dam Height

20

River Or Stream

DEADMAN CREEK

Primary Dam Type

Earth

Hydraulic Height

20

Nid Storage

56

Hazard Potential

Low

Nid Height

20
       
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Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.