Beaver Pond Reservoir Report

Last Updated: December 5, 2025

Beaver Pond in Avon, Montana, is a privately owned water resource that serves multiple purposes, including fire protection, stock watering, and small fish habitat.


°F

°F

mph

Wind

%

Humidity

Summary

This earth dam, completed in 1940, stands at a height of 15 feet and has a storage capacity of 96 acre-feet. With a surface area of 22 acres and a drainage area of 11.2 square miles, Beaver Pond plays a crucial role in managing water resources in the region.

The dam has a low hazard potential and has not been rated for its condition. However, it is subject to state regulation, inspection, and enforcement by the Montana Department of Natural Resources and Conservation (DNRC). Located on Threemile Creek, Beaver Pond contributes to the local ecosystem and provides essential water resources for both wildlife and agricultural activities. Despite its modest size, this pond plays a significant role in water management and conservation efforts in Powell County, Montana.

With its historical significance, multiple uses, and state-regulated status, Beaver Pond is a vital water resource in the region. The dam's construction in 1940 and ongoing state oversight ensure its continued functionality and contribution to the local environment. Water resource and climate enthusiasts will appreciate Beaver Pond's importance in maintaining ecological balance and supporting various water-related activities in the area.

Year Completed

1940

Dam Length

40

Dam Height

15

River Or Stream

THREEMILE CREEK

Primary Dam Type

Earth

Surface Area

22

Hydraulic Height

15

Drainage Area

11.2

Nid Storage

96

Structural Height

10.5

Hazard Potential

Low

Nid Height

15
       
Seasonal Comparison

Weather Forecast

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.