Holeman Lake Dam Reservoir Report
Last Updated: December 17, 2025
Holeman Lake Dam, located in St.
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Summary
Francois County, Missouri, is a privately owned structure that serves primarily for recreational purposes. Completed in 1965, this earth dam stands at a height of 38 feet and stretches 520 feet in length, with a reservoir capacity of 179 acre-feet and a drainage area of 135 square miles. The dam, constructed with stone core and resting on a foundation of rock and soil, is regulated by the DAM AND RESERVOIR SAFETY PROG of Missouri, ensuring state inspection, enforcement, and permitting requirements are met.
With a high hazard potential but a satisfactory condition assessment, Holeman Lake Dam poses a moderate risk that is being managed effectively. The dam's spillway is uncontrolled, and while it lacks outlet gates, its emergency action plan (EAP) is up to date and meets guidelines. The surrounding area, a tributary of Flat River, benefits from the recreational opportunities provided by the dam, creating a serene setting for water resource and climate enthusiasts to enjoy. Overall, Holeman Lake Dam stands as a vital piece of infrastructure in the region, balancing safety with recreation in its role as a water resource management structure.
Year Completed |
1965 |
Dam Length |
520 |
Dam Height |
38 |
River Or Stream |
TRIBUTARY OF FLAT RIVER |
Primary Dam Type |
Earth |
Surface Area |
11 |
Drainage Area |
135 |
Nid Storage |
179 |
Structural Height |
37 |
Outlet Gates |
None |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
38 |
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.
Holeman Lake Dam