Lac Bourbon Dam Reservoir Report
Nearby: Lac Darcie Dam Lac Bergerac Dam
Last Updated: December 17, 2025
Located in St.
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Summary
Francois, Missouri, the Lac Bourbon Dam is a privately owned earth dam completed in 1971 for recreational purposes. With a height of 43 feet and a length of 515 feet, this dam impounds the TR Big River, creating a surface area of 8 acres and a maximum storage capacity of 73 acre-feet. The dam is regulated by the DAM AND RESERVOIR SAFETY PROG in Missouri, ensuring it meets safety standards and undergoes regular inspections.
Despite being classified as having a high hazard potential, the Lac Bourbon Dam is currently in satisfactory condition, as assessed in 2007. The dam features an uncontrolled spillway with a width of 5 feet and has a maximum discharge of 106 cubic feet per second. While the risk assessment indicates a moderate level of risk, the emergency action plan for the dam was last revised in 2014, highlighting the importance of ongoing risk management measures to ensure the safety of the surrounding community. For water resource and climate enthusiasts, Lac Bourbon Dam serves as a vital structure for both recreation and water management in the region.
Year Completed |
1971 |
Dam Length |
515 |
Dam Height |
43 |
River Or Stream |
TR BIG RIVER |
Primary Dam Type |
Earth |
Surface Area |
8 |
Drainage Area |
51 |
Nid Storage |
73 |
Structural Height |
43 |
Outlet Gates |
None |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
43 |
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.
Lac Bourbon Dam