Frerichs Sect-4 Lake Dam Reservoir Report
Last Updated: December 6, 2025
Frerichs Sect-4 Lake Dam in Missouri, completed in 1973, stands as a private earth dam that serves various purposes beyond just water storage.
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Summary
The dam, located in Crawford County near Oak Hill, spans Brush Creek and boasts a height of 20 feet, providing a storage capacity of 86 acre-feet. Despite having a spillway width of zero and no outlet gates, the dam is crucial for managing water resources in the area, with a drainage area of 284 square miles.
With a hazard potential rated as high, the condition assessment of Frerichs Sect-4 Lake Dam remains unrated. The dam's emergency action plan status, as well as its risk assessment and management measures, are all listed as unknown. The dam's location in a high-risk area underscores the importance of proper monitoring and maintenance to ensure the safety and functionality of this vital water resource infrastructure. As a significant component in the local water management system, further assessment and measures may be necessary to mitigate potential risks associated with this dam.
Year Completed |
1973 |
Dam Height |
20 |
River Or Stream |
BRUSH CREEK |
Primary Dam Type |
Earth |
Surface Area |
8 |
Drainage Area |
284 |
Nid Storage |
86 |
Structural Height |
20 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
20 |
Seasonal Comparison
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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.
Frerichs Sect-4 Lake Dam