Robert Horn Reservoir Report
Nearby: Moran Dam Hazel Creek Dam
Last Updated: December 8, 2025
Robert Horn is a privately owned dam located in Adair, Missouri, specifically in the city of Sublette.
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Summary
Built in 1959, this earth dam serves primarily for fire protection, stock, or as a small fish pond. With a height of 20 feet and a storage capacity of 214 acre-feet, it is designed to hold and regulate water from Hazel Creek Offstream, covering a surface area of 20 acres and draining an area of 120 acres.
Managed by the Kansas City District of the US Army Corps of Engineers, Robert Horn has a low hazard potential and is currently rated as "Not Rated" in terms of its condition assessment. The dam has not been inspected recently, with no emergency action plan in place. Despite this, the dam continues to play a vital role in providing water resources for its primary purposes and contributing to the local ecosystem. For water resource and climate enthusiasts, Robert Horn stands as a testament to the importance of maintaining and monitoring our infrastructure to ensure long-term sustainability and safety.
Year Completed |
1959 |
Dam Height |
20 |
River Or Stream |
HAZEL CREEK OFFSTREAM |
Primary Dam Type |
Earth |
Surface Area |
20 |
Drainage Area |
120 |
Nid Storage |
214 |
Structural Height |
20 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
20 |
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.
Robert Horn