Haynes Lake Reservoir Report
Last Updated: December 12, 2025
Haynes Lake, located in Sumner County, Tennessee, is a privately owned earth dam structure that was completed in 1970.
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Summary
The dam stands at a structural height of 36 feet with a hydraulic height of 30 feet, creating a reservoir with a normal storage capacity of 100 acre-feet and a maximum storage of 115 acre-feet. The lake covers a surface area of 7 acres and has a drainage area of 1.42 square miles, with its primary purpose and associated structures not specified.
Managed by the Tennessee Safe Dams Program, Haynes Lake is regulated, permitted, inspected, and enforced by the state agency, ensuring its compliance with safety standards. The dam is classified with a significant hazard potential and a satisfactory condition assessment as of the last inspection in May 2018. Despite being uncontrolled, the spillway type of the dam indicates its ability to handle excess water flow during periods of high precipitation.
With a moderate risk assessment rating of 3, Haynes Lake demonstrates a level of risk that necessitates ongoing monitoring and management measures to ensure the safety and integrity of the structure. While the dam does not have associated emergency action plans or inundation maps prepared, its risk potential underscores the importance of proactive measures to mitigate potential hazards and protect the surrounding community and environment.
Year Completed |
1970 |
Dam Length |
530 |
River Or Stream |
TRIBW FORK DRAKES CREEK |
Primary Dam Type |
Earth |
Surface Area |
7 |
Hydraulic Height |
30 |
Drainage Area |
1.42 |
Nid Storage |
115 |
Structural Height |
36 |
Outlet Gates |
None |
Hazard Potential |
Significant |
Nid Height |
36 |
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.
Haynes Lake