Lone Rock Lake Dam Reservoir Report
Nearby: Shelton Lake Dam Pointdexter Lake Dam
Last Updated: December 16, 2025
Lone Rock Lake Dam, located in Mineola, Missouri, was completed in 1977 and serves as a recreational spot for water resource and climate enthusiasts.
°F
°F
mph
Wind
%
Humidity
Summary
The dam is classified as an Earth dam with a height of 21 feet and a hydraulic height of 20 feet, providing a storage capacity of 108 acre-feet. The dam is situated on TR-Little Loutre Creek in Montgomery County, Missouri, and covers a surface area of 6 acres with a drainage area of 190 square miles.
Despite its recreational purpose, Lone Rock Lake Dam is classified as having a high hazard potential with a moderate risk assessment. The dam features an uncontrolled spillway with a width of 30 feet and a maximum discharge rate of 221 cubic feet per second. Although the dam's condition is currently not rated, it is important for water resource enthusiasts to monitor its risk management measures and emergency preparedness plans. The dam is not regulated by the state and does not have any associated structures or outlet gates.
For those interested in water resources and climate resilience, Lone Rock Lake Dam offers a unique opportunity to explore the intersection of recreation and dam safety. With its picturesque location on TR-Little Loutre Creek and a storage capacity of 108 acre-feet, the dam provides a valuable resource for the local community. However, its high hazard potential and moderate risk assessment highlight the importance of ongoing monitoring and maintenance to ensure the safety and integrity of the structure. As water resource enthusiasts, it is crucial to stay informed about the condition and management of Lone Rock Lake Dam to contribute to its long-term sustainability and resilience in the face of changing climate conditions.
Year Completed |
1977 |
Dam Length |
700 |
Dam Height |
21 |
River Or Stream |
TR-LITTLE LOUTRE CREEK |
Primary Dam Type |
Earth |
Surface Area |
6 |
Hydraulic Height |
20 |
Drainage Area |
190 |
Nid Storage |
108 |
Structural Height |
22 |
Outlet Gates |
None |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
22 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Missouri River At Hermann
|
27400cfs |
South Fork Salt River Above Santa Fe
|
19cfs |
Long Branch Near Santa Fe
|
15cfs |
Lick Creek At Perry
|
2cfs |
Cuivre River Near Troy
|
35cfs |
Hinkson Creek At Columbia
|
1cfs |
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.
Lone Rock Lake Dam