Schaefer Lake Dam Reservoir Report
Nearby: Kaeppel Lake Dam Trautman Lake Dam
Last Updated: December 6, 2025
Schaefer Lake Dam, located in St.
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Summary
Marys, Missouri, is a private earth dam with a primary purpose of recreation. Completed in 1970, the dam stands at a height of 25 feet and has a storage capacity of 40 acre-feet. The dam is situated on the TR North Fork Jonca Branch, with a drainage area of 100 acres and a surface area of 3 acres.
Despite its low hazard potential, Schaefer Lake Dam has not been rated for its condition assessment. It is not regulated by the state, and there have been no recent inspections or assessments conducted on the dam. The dam does not have an Emergency Action Plan (EAP) in place, and there is limited information available on risk management measures and emergency preparedness.
For water resource and climate enthusiasts, Schaefer Lake Dam presents an interesting case study in private dam ownership and management. With its focus on recreation and its relatively small storage capacity, the dam serves as a reminder of the diverse roles that dams play within local communities. However, the lack of regulation, inspections, and emergency preparedness for Schaefer Lake Dam also highlights the importance of proper maintenance and oversight to ensure the safety and long-term viability of such structures in the face of changing climate conditions.
Year Completed |
1970 |
Dam Height |
25 |
River Or Stream |
TR NORTH FORK JONCA BRANCH |
Primary Dam Type |
Earth |
Surface Area |
3 |
Drainage Area |
100 |
Nid Storage |
40 |
Structural Height |
25 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Schaefer Lake Dam