Leisure Lake Main Dam Reservoir Report

Last Updated: December 14, 2025

Leisure Lake Main Dam, located in Callaway County, Missouri, is a privately-owned earth dam constructed in 1960 by Leisure Systems Inc.


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Summary

The dam's primary purpose is for recreation, providing a surface area of 46 acres and a normal storage capacity of 2,484 acre-feet. The dam stands at a height of 58 feet and spans 396 feet in length, impounding water from the TR-AUXVASSE CREEK for leisure activities such as fishing and boating.

Despite its age, the dam is in satisfactory condition with a low hazard potential, as indicated by a moderate risk assessment rating. The dam is regulated by the DAM AND RESERVOIR SAFETY PROG under the Missouri state jurisdiction, with regular inspections conducted every 5 years to ensure its structural integrity and safety. In the event of an emergency, the dam has established emergency action plans, although details on their preparation and adherence to guidelines are not readily available.

Water resource and climate enthusiasts will appreciate the unique design of the Leisure Lake Main Dam, its recreational benefits, and the careful oversight provided by state regulators. The dam's location in the St. Louis District adds to its appeal, offering a tranquil escape for visitors while maintaining a commitment to safety and risk management. As a vital component of the local water infrastructure, the Leisure Lake Main Dam serves as a valuable resource for both the community and the surrounding ecosystem.

Year Completed

1960

Dam Length

396

Dam Height

58

River Or Stream

TR-AUXVASSE CREEK

Primary Dam Type

Earth

Surface Area

46

Drainage Area

690

Nid Storage

2484

Structural Height

54

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

58
       
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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.