Richmond School Lake Dam Reservoir Report
Last Updated: December 16, 2025
Richmond School Lake Dam, located in Henrietta, Missouri, was completed in 1962 and serves as a vital structure for grade stabilization along the TR-WILLOW CREEK.
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Summary
This private earth dam stands at a height of 25 feet and has a maximum storage capacity of 118 acre-feet. The dam's primary purpose is grade stabilization, but it also supports fire protection, stock, or small fish pond activities within its 4-acre surface area.
Despite being classified as having a low hazard potential, Richmond School Lake Dam poses a moderate risk due to its condition assessment being "Not Rated." The dam has not been inspected recently, and there is no established inspection frequency in place. Although there are no associated emergency action plans or inundation maps prepared, the dam's spillway type is uncontrolled with a width of 16 feet. With its strategic location in Ray County, Missouri, water resource and climate enthusiasts may find Richmond School Lake Dam an intriguing structure to study and monitor for potential environmental impacts.
Year Completed |
1962 |
Dam Length |
470 |
Dam Height |
25 |
River Or Stream |
TR-WILLOW CREEK |
Primary Dam Type |
Earth |
Surface Area |
4 |
Hydraulic Height |
24 |
Drainage Area |
155 |
Nid Storage |
118 |
Structural Height |
26 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
26 |
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.
Richmond School Lake Dam