Lake Wanderfern Dam Reservoir Report
Nearby: Lake Konstanz Dam Eioelweiss Dam
Last Updated: December 18, 2025
Lake Wanderfern Dam, located in Warren County, Missouri, is a privately owned structure primarily used for recreational purposes.
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Summary
Completed in 1976, this earth dam stands at 54 feet in height and spans 410 feet in length. With a storage capacity of 1567 acre-feet, the dam impounds water from TR Charette Creek, creating a surface area of 48 acres for outdoor activities.
Despite its satisfactory condition assessment, Lake Wanderfern Dam poses a high hazard potential, prompting regular inspections and a designated emergency action plan. The dam's spillway, with a width of 18 feet, is uncontrolled, allowing excess water to flow downstream during periods of heavy rainfall. The moderate risk assessment for this structure suggests a need for ongoing risk management measures to ensure the safety of the surrounding community and environment.
Situated within the St. Louis District and under the regulatory oversight of the DAM AND RESERVOIR SAFETY PROG, Lake Wanderfern Dam serves as a vital component of the local water resource infrastructure. Its presence not only provides recreational opportunities for visitors but also highlights the importance of proper maintenance and vigilant monitoring in safeguarding against potential hazards and ensuring long-term sustainability.
Year Completed |
1976 |
Dam Length |
410 |
Dam Height |
54 |
River Or Stream |
TR CHARETTE CREEK |
Primary Dam Type |
Earth |
Surface Area |
48 |
Drainage Area |
1632 |
Nid Storage |
1567 |
Structural Height |
52 |
Outlet Gates |
Valve |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
54 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Cuivre River Near Troy
|
33cfs |
Missouri River At Hermann
|
29400cfs |
Dardenne Creek At Ofallon
|
6cfs |
Bourbeuse River At Union
|
73cfs |
Dardenne Creek At Old Town St. Peters
|
11cfs |
Bonhomme Creek Near Ellisville
|
0cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Lake Wanderfern Dam