Allison Lake Dam Reservoir Report
Last Updated: December 17, 2025
Allison Lake Dam, located in Montgomery County, Missouri, was completed in 1968 and serves multiple purposes including fire protection, stock, and small fish pond management.
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Summary
This private earth dam, with a height of 25 feet, has a storage capacity of 80 acre-feet and covers a surface area of 6 acres. It is situated on TR-Coon Creek, within the jurisdiction of the Kansas City District of the US Army Corps of Engineers.
Despite its low hazard potential, Allison Lake Dam has not been rated for its current condition. The dam has not undergone recent inspections, and there is no Emergency Action Plan in place. The dam is not regulated by the state of Missouri and does not have any associated federal agencies overseeing its operation or maintenance. With its close proximity to Middletown, the dam provides essential water resources for the local community while also offering recreational opportunities.
For water resource and climate enthusiasts interested in the management of dams and their impact on local ecosystems, Allison Lake Dam presents an intriguing case study. As a privately owned structure with limited oversight, the dam's condition and safety measures warrant further investigation. The dam's primary purpose of fire protection and water storage highlights its importance in the region, making it crucial to ensure its continued maintenance and monitoring to prevent any potential risks to the surrounding area.
Year Completed |
1968 |
Dam Height |
25 |
River Or Stream |
TR-COON CREEK |
Primary Dam Type |
Earth |
Surface Area |
6 |
Drainage Area |
30 |
Nid Storage |
80 |
Structural Height |
25 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
South Fork Salt River Above Santa Fe
|
12cfs |
Lick Creek At Perry
|
2cfs |
Long Branch Near Santa Fe
|
8cfs |
Spencer Cr. Bl Plum Cr. Nr Frankford
|
24cfs |
Cuivre River Near Troy
|
42cfs |
Missouri River At Hermann
|
28400cfs |
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.
Allison Lake Dam