Kehr's Mill Trail Lower Lake Dam Reservoir Report
Last Updated: December 20, 2025
Located in St.
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Summary
Louis, Missouri, the Kehr's Mill Trail Lower Lake Dam is a private recreational structure completed in 1976. This earth dam stands at a height of 25 feet and has a storage capacity of 255 acre-feet, providing a serene 12-acre lake for outdoor enthusiasts to enjoy. Despite its tranquil appearance, the dam is classified as having a high hazard potential, emphasizing the importance of proper maintenance and monitoring.
The dam, situated on TR to Caulks Creek, is managed by private owners and falls under the jurisdiction of the Kansas City District of the US Army Corps of Engineers. While the dam's condition assessment is currently listed as "Not Rated" and the last inspection dates back to 1980, its hazard potential warrants attention from water resource and climate enthusiasts. With no state regulation or permitting required, the responsibility for ensuring the safety of the structure lies with the private owners, making regular inspections and maintenance crucial.
Although the Kehr's Mill Trail Lower Lake Dam may not be subject to frequent oversight, its high hazard potential serves as a reminder of the importance of proper upkeep and monitoring for all types of dams, especially in the face of changing climate patterns. As one of the many recreational structures dotting the Missouri landscape, this dam serves as both a leisure destination and a cautionary tale, highlighting the need for proactive measures to mitigate risks associated with water resource management and climate variability.
Year Completed |
1976 |
Dam Height |
25 |
River Or Stream |
TR TO CAULKS CREEK |
Primary Dam Type |
Earth |
Surface Area |
12 |
Drainage Area |
580 |
Nid Storage |
255 |
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.
Kehr's Mill Trail Lower Lake Dam
Katy Trail 1800, Saint Charles County