Beartrack H2o Overflow Pond Reservoir Report

Last Updated: December 5, 2025

Beartrack H2o Overflow Pond, located in Lemhi, Idaho, serves as a vital water resource for the area, with a primary purpose of managing tailings.


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Summary

This privately-owned pond, completed in 1995, boasts a dam height of 35 feet and a hydraulic height of 33 feet, providing storage capacity of 205 acre-feet. With a low hazard potential and satisfactory condition assessment, this structure plays a crucial role in water management and environmental protection in the region.

The Beartrack H2o Overflow Pond is regulated by the Idaho Department of Water Resources, ensuring proper inspection, enforcement, and permitting. The pond's spillway, with a width of 10 feet, is uncontrolled, and the structure covers a surface area of 8 acres with a drainage area of 0.2 square miles. Despite its moderate risk assessment, the pond is well-maintained and meets regulatory guidelines, enhancing its efficiency in storing and managing water resources for the community.

In the event of emergencies, the Beartrack H2o Overflow Pond has designated emergency contacts and preparedness measures in place. Its location near Napias Creek and Panther Creek further highlights its significance in water management for the area. With its strategic design and operational effectiveness, this pond stands as a reliable and crucial component in maintaining water resources and mitigating climate-related challenges in Lemhi, Idaho.

Year Completed

1995

Dam Length

1800

Dam Height

35

River Or Stream

NAPIAS CREEK PANTHER CREEK

Surface Area

8

Hydraulic Height

33

Drainage Area

0.2

Nid Storage

205

Structural Height

52

Hazard Potential

Low

Foundations

Rock, Soil

Nid Height

52
       
Seasonal Comparison

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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.