Lake Oneil Dam Reservoir Report
Nearby: Quail Hollow Lake Dam Goose Lake Dam
Last Updated: December 6, 2025
Lake Oneil Dam, located in Haywood County, Tennessee, is a Federal-owned earth dam constructed in 1964 by the Fish and Wildlife Service.
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Summary
The dam serves as a Fish and Wildlife Pond, providing essential habitat for local wildlife and recreational opportunities for visitors. With a height of 9 feet and a length of 9750 feet, the dam has a normal storage capacity of 902 acre-feet and a maximum storage capacity of 1165 acre-feet, covering a surface area of 131.3 acres.
Managed and maintained by the Fish and Wildlife Service, Lake Oneil Dam has a low hazard potential and is in fair condition, last assessed in August 2016. The dam features outlet gates for controlled water release, including slide gates for efficient water management. Despite not being regulated or inspected by the state, the dam is regularly monitored by the Federal agency to ensure its structural integrity and safety.
Located on Poplar Creek within the Memphis District, Lake Oneil Dam plays a crucial role in supporting the local ecosystem and providing recreational opportunities for the community. With its significance in water resource management and conservation, the dam stands as a testament to the Fish and Wildlife Service's commitment to preserving natural habitats and promoting environmental stewardship in Tennessee.
Year Completed |
1964 |
Dam Length |
9750 |
Dam Height |
9 |
River Or Stream |
Poplar Creek |
Primary Dam Type |
Earth |
Surface Area |
131.3 |
Hydraulic Height |
9 |
Drainage Area |
0.2 |
Nid Storage |
1165 |
Structural Height |
9 |
Outlet Gates |
Other Controlled, Slide (sluice gate) |
Hazard Potential |
Low |
Nid Height |
9 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
South Fork Forked Deer River Near Owl City
|
524cfs |
Hatchie River At Rialto
|
1080cfs |
Hatchie River At Bolivar
|
933cfs |
Loosahatchie River Near Arlington
|
122cfs |
Middle Fork Forked Deer River Near Fairview
|
164cfs |
Wolf River At Lagrange
|
223cfs |
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.
Lake Oneil Dam