Fatzinger #2 Reservoir Report

Last Updated: December 11, 2025

Fatzinger #2 is a private dam located in Poplar, Montana, along the TR-Long Grass Creek.


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Summary

Completed in 1965, this earth dam stands at a height of 21 feet and serves multiple purposes including fire protection, stock, and small fish pond. With a storage capacity of 234 acre-feet, the dam has a low hazard potential and its condition is currently rated as "Not Rated."

Managed by the Montana Department of Natural Resources and Conservation (DNRC), Fatzinger #2 is regulated, permitted, inspected, and enforced by the state. While the dam has not been modified in recent years, it continues to play a crucial role in water resource management in the region. Despite its low hazard potential, the dam's emergency action plan (EAP) status and risk assessment details are currently not available.

Located in Richland County, Fatzinger #2 is situated in a picturesque setting with a maximum storage capacity of 234 acre-feet and a normal storage level of 69 acre-feet. As water resource and climate enthusiasts, it is important to monitor the condition and management of dams like Fatzinger #2 to ensure their safety and efficient operation for the surrounding community and ecosystem.

Year Completed

1965

Dam Length

700

Dam Height

21

River Or Stream

TR-LONG GRASS CREEK

Primary Dam Type

Earth

Hydraulic Height

21

Nid Storage

234

Hazard Potential

Low

Nid Height

21
       
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.