Gray Lake Dam Reservoir Report
Nearby: Engle Lake Dam Beaty Ranch Lake Dam
Last Updated: December 6, 2025
Gray Lake Dam, located in Warsaw, Missouri, was completed in 1976 and serves primarily for grade stabilization and irrigation purposes.
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Summary
This private earth dam stands at a height of 25 feet with a hydraulic height of 24 feet and a structural height of 26 feet. It has a length of 810 feet and a storage capacity of 368 acre-feet, with a maximum discharge of 80 cubic feet per second. The dam is situated on TR-Honey Creek in Henry County and has a low hazard potential, with a moderate risk assessment score of 3.
Despite being privately owned, Gray Lake Dam is not regulated or inspected by the state authorities in Missouri. The dam features an uncontrolled spillway with a width of 20 feet and is primarily constructed with earth and stone materials on a soil foundation. With a surface area of 10 acres and a drainage area of 175 square miles, the dam plays a crucial role in managing water resources in the region. While the dam's condition assessment is currently not rated, it is essential for water resource and climate enthusiasts to monitor and assess the risk associated with this structure to ensure its long-term safety and functionality.
Year Completed |
1976 |
Dam Length |
810 |
Dam Height |
25 |
River Or Stream |
TR-HONEY CREEK |
Primary Dam Type |
Earth |
Surface Area |
10 |
Hydraulic Height |
24 |
Drainage Area |
175 |
Nid Storage |
368 |
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.
Gray Lake Dam