Katy Allen Lake Dam Reservoir Report
Nearby: Izaak Walton Lake Dam Marquardt Dam
Last Updated: December 6, 2025
Katy Allen Lake Dam, located in Vernon County, Missouri, was completed in 1910 with a primary purpose of recreation.
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Summary
The earth dam stands at a height of 25 feet and has a storage capacity of 160 acre-feet, offering a serene surface area of 12 acres for visitors to enjoy. The dam is situated on Willow Branch and is owned privately, with no state jurisdiction or regulation.
Despite not being regulated by the state, Katy Allen Lake Dam has a high hazard potential, making it crucial for emergency preparedness measures to be in place. The condition of the dam is currently not rated, as the last inspection was conducted in 1979. With its historical significance and recreational appeal, the dam serves as a vital water resource for the local community and a popular destination for outdoor enthusiasts.
As water resource and climate enthusiasts explore the beauty of Katy Allen Lake Dam, it serves as a reminder of the importance of maintaining and monitoring our water infrastructure. With its rich history and potential risks, the dam stands as a testament to the balance between human enjoyment and the need for proper management of our water resources in the face of changing climate patterns.
Year Completed |
1910 |
Dam Height |
25 |
River Or Stream |
WILLOW BRANCH |
Primary Dam Type |
Earth |
Surface Area |
12 |
Drainage Area |
625 |
Nid Storage |
160 |
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.
Katy Allen Lake Dam