Steffan Lake Dam Reservoir Report
Nearby: Circle V Dam Henry Sever Dam
Last Updated: December 14, 2025
Steffan Lake Dam, located in Knox County, Missouri, is a private earth dam primarily used for recreation purposes.
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Summary
The dam stands at a height of 34 feet and has a storage capacity of 1182 acre-feet, with a normal storage level of 758 acre-feet. The dam creates a surface area of 65 acres and has a drainage area of 280 acres, making it a key feature in the local landscape.
Despite its recreational purpose, Steffan Lake Dam has a high hazard potential and has not been rated for its current condition. The last inspection of the dam took place in September 1987, indicating a potential need for updated assessments and maintenance. The dam does not fall under state regulation or inspection, highlighting the importance of private owners taking responsibility for its upkeep and safety measures.
With its scenic location along the TR-Little Fabius River, Steffan Lake Dam serves as a popular spot for outdoor enthusiasts to enjoy various recreational activities. However, given its high hazard potential and lack of recent assessments, it is essential for the private owners to prioritize regular inspections and maintenance to ensure the safety of both the dam and the surrounding community.
Dam Height |
34 |
River Or Stream |
TR-LITTLE FABIUS RIVER |
Primary Dam Type |
Earth |
Surface Area |
65 |
Drainage Area |
280 |
Nid Storage |
1182 |
Structural Height |
34 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
34 |
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.
Steffan Lake Dam