Hargis Dam Reservoir Report
Nearby: Hood Lake Dam Llorens Lake Dam
Last Updated: December 19, 2025
Hargis Dam, located in Boone County, Missouri, was completed in 1989 and serves as a vital structure for fish and wildlife pond management, grade stabilization, and recreation purposes.
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Summary
This privately owned earth dam stands at a height of 26 feet and stretches a length of 185 feet, with a storage capacity of 19 acre-feet. Situated on the TR-PERCHE CREEK, the dam's primary purpose is to support the local ecosystem and provide recreational opportunities for the community.
Despite its low hazard potential, Hargis Dam is considered to have a moderate risk level, with a rating of 3 out of 5. The dam features an uncontrolled spillway type with a width of 10 feet and no outlet gates. While the structure has not been rated for its condition assessment, it has not undergone recent inspections or maintenance activities. Despite these factors, Hargis Dam continues to contribute to the conservation efforts and recreational activities in the area, under the watchful eye of the St. Louis District of the US Army Corps of Engineers.
Water resource and climate enthusiasts will find Hargis Dam to be an intriguing example of a privately owned structure designed to support ecological diversity and outdoor recreation. Its location on TR-PERCHE CREEK in the heart of Missouri's Boone County adds to its significance as a key component of the local landscape. With its moderate risk level and low hazard potential, the dam stands as a testament to responsible water management practices and the importance of maintaining infrastructure for both environmental and recreational purposes.
Year Completed |
1989 |
Dam Length |
185 |
Dam Height |
26 |
River Or Stream |
TR-PERCHE CREEK |
Primary Dam Type |
Earth |
Surface Area |
7 |
Hydraulic Height |
26 |
Drainage Area |
276 |
Nid Storage |
19 |
Structural Height |
26 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
26 |
Seasonal Comparison
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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.
Hargis Dam