Lanier Lake Dam Reservoir Report
Last Updated: December 13, 2025
Located in Twiggs, Georgia, Lanier Lake Dam is a private earth dam primarily used for recreation purposes.
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Summary
Standing at a height of 12.4 feet and completed in 1960, the dam boasts a storage capacity of 167 acre-feet and covers a surface area of 14 acres. With a drainage area of 930 acres, Lanier Lake Dam plays a crucial role in managing water resources in the region.
Despite being unlisted by federal agencies, Lanier Lake Dam is subject to state jurisdiction and inspection, ensuring its structural integrity and safety. With a low hazard potential and a moderate risk assessment rating, the dam is deemed to be in satisfactory condition. As an integral part of the local landscape, Lanier Lake Dam provides not only recreational opportunities but also contributes to water management efforts in the area.
With an uncontrolled spillway and outlet gates, Lanier Lake Dam serves as a vital infrastructure for the community of Ripley Environs. As climate change continues to impact water resources, the importance of structures like Lanier Lake Dam in maintaining water supply and mitigating potential risks becomes increasingly apparent. This dam stands as a testament to the intersection of human-made structures and natural resources, highlighting the need for sustainable management practices in the face of evolving environmental challenges.
Year Completed |
1960 |
Dam Length |
450 |
Dam Height |
12.4 |
River Or Stream |
NO NAME |
Primary Dam Type |
Earth |
Surface Area |
14 |
Drainage Area |
930 |
Nid Storage |
167 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
12 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Ocmulgee River At Macon
|
817cfs |
Tobesofkee Creek Near Macon
|
7cfs |
Oconee River At Avant Mine
|
614cfs |
Oconee River At Milledgeville
|
514cfs |
Oconee River Near Oconee
|
895cfs |
Falling Creek Near Juliette
|
14cfs |
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.
Lanier Lake Dam