Pepmiller Lake Dam Reservoir Report

Last Updated: December 11, 2025

Pepmiller Lake Dam, located in Mineola, Missouri, is a privately owned Earth dam completed in 1970 for recreational purposes.


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Summary

The dam stands at a height of 30 feet and has a storage capacity of 64 acre-feet, with a normal storage of 40 acre-feet. The dam is situated on the TR-MASSEY BR-LOUTRE RIVER and covers a surface area of 4 acres, draining a watershed area of 26 square miles.

Despite its recreational purpose, Pepmiller Lake Dam is classified as having a high hazard potential, although its condition assessment is currently listed as "Not Rated." The dam has not been inspected recently, and there is no Emergency Action Plan (EAP) in place at the moment. The dam is not regulated by the state and does not have a designated regulatory agency overseeing its operations. With its proximity to Mineola and the potential risks associated with its high hazard classification, it is crucial for stakeholders and local authorities to prioritize the safety and maintenance of Pepmiller Lake Dam to prevent any potential disasters and ensure the protection of surrounding communities and ecosystems.

Year Completed

1970

Dam Height

30

River Or Stream

TR-MASSEY BR-LOUTRE RIVER

Primary Dam Type

Earth

Surface Area

4

Drainage Area

26

Nid Storage

64

Structural Height

30

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

30
       
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.