Pawlowski #1 Reservoir Report

Last Updated: December 18, 2025

Pawlowski #1 is a privately owned earth dam located in Poplar, Montana, along the TR-LOST CREEK.


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Summary

Built in 1944, this dam serves multiple purposes including fire protection, stock watering, and small fish pond maintenance. With a height of 20 feet and a length of 360 feet, Pawlowski #1 has a storage capacity of 155 acre-feet, with a normal storage level of 79 acre-feet. Its significant hazard potential and state-regulated status make it a crucial structure in the region's water resource management.

Despite being classified as "Not Rated" in terms of condition assessment, Pawlowski #1 is subject to state permitting, inspection, and enforcement, ensuring its safety and regulatory compliance. The dam's location in McCone County, Montana, under the jurisdiction of the DNRC, highlights its importance in the local water infrastructure. Its proximity to the Omaha District and Congressional District 00 further underscores its significance in the broader water management landscape.

Water resource and climate enthusiasts will find Pawlowski #1 an intriguing example of early 20th-century dam engineering, serving both practical and ecological purposes in the region. Its historical significance, combined with its operational role in fire protection and livestock watering, makes it a valuable asset in the sustainable management of water resources in Montana.

Year Completed

1944

Dam Length

360

Dam Height

20

River Or Stream

TR-LOST CREEK

Primary Dam Type

Earth

Hydraulic Height

20

Nid Storage

155

Hazard Potential

Significant

Nid Height

20
       
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.