J R Scott #5 Reservoir Report

Last Updated: December 5, 2025

J R Scott #5 is a privately owned earth dam located in Big Horn, Montana, near the city of Pompeys Pillar.


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Summary

Built in 1953, the dam stands at a height of 12 feet and has a storage capacity of 62 acre-feet, primarily serving the purposes of fire protection, stock, and a small fish pond. Situated on the TR-FLY CREEK river, the dam is regulated by the Montana Department of Natural Resources and Conservation (DNRC), with state jurisdiction and permitting in place.

Despite its low hazard potential and current "Not Rated" condition assessment, J R Scott #5 has not been inspected recently, with no information available on its emergency action plan or risk assessment measures. The dam's location within Congressional District 00, Montana, under the representation of Greg Gianforte (R), adds a political dimension to its management and oversight. Given the lack of recent data on the dam's maintenance and emergency preparedness, there may be a need for increased monitoring and evaluation to ensure its continued safety and functionality for water resource and climate enthusiasts interested in its preservation.

With its historical significance dating back to the mid-20th century, J R Scott #5 serves as a reminder of the importance of maintaining and regulating dams for various purposes, including fire protection and water storage. As water resource and climate enthusiasts continue to advocate for sustainable water management practices, the future of J R Scott #5 may depend on proactive measures to address any potential risks or vulnerabilities that could impact its structural integrity and environmental impact. By staying informed and engaged in the oversight of dams like J R Scott #5, enthusiasts can contribute to the preservation of vital water resources in Montana and beyond.

Year Completed

1953

Dam Length

140

Dam Height

12

River Or Stream

TR-FLY CREEK

Primary Dam Type

Earth

Hydraulic Height

12

Nid Storage

62

Hazard Potential

Low

Nid Height

12
       
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.