Riley Lake Dam Reservoir Report
Nearby: Thomas Bros Lake Dam Stuck Lake Dam
Last Updated: December 11, 2025
Riley Lake Dam, located in Callao, Missouri, was completed in 1944 and serves multiple purposes including fire protection, stock, and small fish pond management.
°F
°F
mph
Wind
%
Humidity
Summary
This private dam, primarily made of earth with a buttress core, stands at a height of 25 feet and has a storage capacity of 227 acre-feet. The dam is situated on the TR-East Fork Chariton River and covers a surface area of 17 acres with a drainage area of 235 acres.
Despite not being regulated by the state, Riley Lake Dam has a high hazard potential due to its condition being rated as 'Not Rated.' Emergency action plans and risk management measures for the dam are currently not available, highlighting potential vulnerabilities in case of a catastrophic event. With its location in a region susceptible to climate change impacts such as increased precipitation and extreme weather events, water resource and climate enthusiasts should be aware of the importance of maintaining and monitoring the structural integrity of Riley Lake Dam to ensure the safety of surrounding communities and ecosystems.
Year Completed |
1944 |
Dam Height |
25 |
River Or Stream |
TR-EAST FORK CHARITON RIVER |
Primary Dam Type |
Earth |
Surface Area |
17 |
Drainage Area |
235 |
Nid Storage |
227 |
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.
Riley Lake Dam