Park Charles South Dam Reservoir Report

Last Updated: December 20, 2025

Park Charles South Dam, located in St.


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Summary

Peters, Missouri, is a privately owned earth dam built in 1965 for recreational purposes. Standing at a height of 39 feet and spanning 800 feet in length, the dam holds a storage capacity of 123 acre-feet and covers a surface area of 9 acres. It is regulated, permitted, inspected, and enforced by the Missouri Dam and Reservoir Safety Program, ensuring its structural integrity and safety.

The dam, situated on the Tributary of Dardenne Creek, poses a high hazard potential but is currently in satisfactory condition as of the last assessment in 2007. It features an uncontrolled spillway with a width of 14 feet and a slide gate for outlet control. Despite its moderate risk assessment, the dam has not been modified over the years and has an emergency action plan in place, meeting safety guidelines.

With its scenic location and important role in recreational activities, Park Charles South Dam serves as a vital water resource infrastructure in St. Charles County, Missouri. As an Earth dam with stone core construction, it not only provides storage and flood protection but also contributes to the overall environmental and water management efforts in the area.

Year Completed

1965

Dam Length

800

Dam Height

39

River Or Stream

TRIB-DARDENNE CREEK

Primary Dam Type

Earth

Surface Area

9

Drainage Area

75

Nid Storage

123

Structural Height

39

Outlet Gates

Slide (sluice gate)

Hazard Potential

High

Foundations

Rock

Nid Height

39
       
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.