Downing Lake Dam Reservoir Report
Last Updated: December 12, 2025
Downing Lake Dam, located in Warrensburg, Missouri, is a private earth dam primarily used for fire protection, stock, and small fish pond purposes.
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Summary
The dam stands at a height of 25 feet and has a storage capacity of 40 acre-feet, with a normal storage level of 25 acre-feet. The dam is situated on TR-Blackjack Creek and is under the jurisdiction of the Kansas City District of the US Army Corps of Engineers.
Despite being rated as having low hazard potential and not yet assessed for its condition, Downing Lake Dam serves as a crucial resource for water storage and management in Johnson County, Missouri. The dam's location and purpose make it an essential asset for local fire protection and agricultural needs. With a surface area of 3 acres and a drainage area of 35 acres, the dam plays a vital role in maintaining water supply and ecosystem health in the surrounding area.
As a key infrastructure element in the region, Downing Lake Dam requires regular inspection and management to ensure its safety and functionality. The dam's emergency action plan, risk assessment, and hazard mitigation measures are all critical components in safeguarding the community and environment from potential risks associated with dam failure. Water resource and climate enthusiasts should take note of Downing Lake Dam's significance in supporting the local ecosystem and agricultural activities in Johnson County, Missouri.
Dam Height |
25 |
River Or Stream |
TR-BLACKJACK CREEK |
Primary Dam Type |
Earth |
Surface Area |
3 |
Drainage Area |
35 |
Nid Storage |
40 |
Structural Height |
25 |
Hazard Potential |
Low |
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.
Downing Lake Dam