Kelly (Park) Reservoir Report

Last Updated: December 4, 2025

Kelly (Park) is a private earth dam located in Wilsall, Montana, along the TR-SHIELDS RIVER.


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Summary

Built in 1955 for fire protection and to provide water for stock or small fish pond, this dam stands at 15 feet in height and has a storage capacity of 60 acre-feet. With a low hazard potential, Kelly (Park) is regulated by the DNRC and is subject to state jurisdiction, permitting, inspection, and enforcement.

Situated in Park County, Montana, Kelly (Park) is owned privately and serves multiple purposes, including fire protection and stock or small fish pond. The dam has a length of 405 feet and a maximum discharge capacity of 150 cfs, making it a vital resource for water management in the area. Despite being not rated for condition assessment, the dam's emergency action plan status, risk assessment, and risk management measures are currently unknown.

The location of Kelly (Park) offers a serene setting for water resource and climate enthusiasts to appreciate the importance of maintaining and managing dams for various purposes. With its historical significance dating back to 1955, the dam continues to play a crucial role in providing water for firefighting and agricultural needs in the surrounding area.

Year Completed

1955

Dam Length

405

Dam Height

15

River Or Stream

TR-SHIELDS RIVER

Primary Dam Type

Earth

Hydraulic Height

15

Nid Storage

60

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.