Dennis Lake Dam Reservoir Report
Nearby: Knoblauch Lake Dam Koch Lake Dam
Last Updated: December 5, 2025
Dennis Lake Dam, located in Dixon, Missouri, was completed in 1972 and serves primarily as a debris control structure along the Mungy Branch.
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Summary
This privately owned earth dam stands at a height of 25 feet and has a storage capacity of 80 acre-feet. While the dam is not regulated or inspected by the state, it is considered to have a high hazard potential due to its condition being "Not Rated."
Despite the lack of state oversight, Dennis Lake Dam plays a crucial role in fire protection, stock maintenance, and recreation in the surrounding area. With a normal storage capacity of 34 acre-feet and a surface area of 6 acres, the dam helps manage water resources for the 740-acre drainage area it serves. While the dam may not have a spillway or outlet gates, it remains a vital structure for the community and wildlife that depend on its functions.
Although the dam's condition assessment is currently "Not Rated" and it lacks certain emergency preparedness measures, Dennis Lake Dam remains a significant feature in the local landscape. As climate change continues to impact water resources, understanding the role of structures like Dennis Lake Dam in managing and protecting these resources becomes increasingly important for water resource and climate enthusiasts in the region.
Year Completed |
1972 |
Dam Height |
25 |
River Or Stream |
MUNGY BRANCH |
Primary Dam Type |
Earth |
Surface Area |
6 |
Drainage Area |
740 |
Nid Storage |
80 |
Structural Height |
25 |
Hazard Potential |
High |
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.
Dennis Lake Dam