Luttrell Lake Dam Lower Reservoir Report

Last Updated: December 5, 2025

Luttrell Lake Dam Lower, located in Potosi, Missouri, is a privately-owned structure that serves primarily for recreational purposes.


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Summary

Completed in 1935, this earth and rockfill dam stands at a height of 41 feet, with a hydraulic height of 44 feet and a length of 430 feet. The dam has a storage capacity of 132 acre-feet, with a normal storage of 117 acre-feet and a surface area of 9 acres.

Managed by the DAM AND RESERVOIR SAFETY PROG in Missouri, the dam is deemed to have a significant hazard potential, but its condition is assessed as satisfactory. The last inspection was conducted in March 2018, with an inspection frequency of 5 years. The dam has an uncontrolled spillway with a width of 50 feet and a maximum discharge capacity of 119 cubic feet per second. Despite moderate risk assessment, the dam's risk management measures and specific risk characteristics are currently unspecified.

Enthusiasts of water resources and climate will find Luttrell Lake Dam Lower an intriguing structure due to its historical significance, recreational purpose, and the management and regulatory oversight it receives. With its unique design features, storage capacity, and hazard potential, this dam presents opportunities for further study and appreciation for those interested in the intersection of water management and environmental conservation.

Year Completed

1935

Dam Length

430

Dam Height

41

River Or Stream

TR-MINE A BRETON CREEK

Surface Area

9

Drainage Area

370

Nid Storage

132

Structural Height

44

Outlet Gates

None

Hazard Potential

Significant

Foundations

Unlisted/Unknown

Nid Height

44
       
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.