Overton Retreat #2 Reservoir Report
Nearby: Overton Retreat O'Neal Lake
Last Updated: December 6, 2025
Overton Retreat #2 is a private earth dam located in Warren, Tennessee, with a primary purpose of recreation.
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Summary
Completed in 2009, this dam on Chestnut Hollow Branch has a hydraulic height of 36 feet and a structural height of 39 feet, providing a maximum storage capacity of 194 acre-feet and a normal storage of 140 acre-feet. With a surface area of 16.5 acres and a drainage area of 0.18 square miles, this dam serves as a low hazard potential structure with a satisfactory condition assessment as of August 2020.
Managed by the Tennessee Safe Dams Program, Overton Retreat #2 undergoes regular state inspections, permitting, and enforcement to ensure its safety and compliance with regulations. Despite its uncontrolled spillway type, the dam has a moderate risk assessment rating of 3, indicating a need for ongoing risk management measures. The surrounding area, including the Nashville District, benefits from this recreational structure, offering opportunities for water resource and climate enthusiasts to enjoy the beauty of this man-made reservoir.
Overall, Overton Retreat #2 provides a valuable recreational resource while also serving as an important water management structure in the region. With its low hazard potential and satisfactory condition, this dam represents a significant asset to the community and a focal point for activities related to water resources and climate conservation. Its location in the picturesque Warren County, Tennessee, offers a serene and peaceful retreat for those seeking to connect with nature and appreciate the importance of sustainable water resource management.
Year Completed |
2009 |
Dam Length |
450 |
River Or Stream |
CHESTNUT HOLLOW BRANCH |
Primary Dam Type |
Earth |
Surface Area |
16.5 |
Hydraulic Height |
36 |
Drainage Area |
0.18 |
Nid Storage |
194 |
Structural Height |
39 |
Hazard Potential |
Low |
Nid Height |
39 |
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.
Overton Retreat #2