Griners Lake Dam Reservoir Report
Last Updated: December 11, 2025
Griners Lake Dam, located in Jennie Environs, Georgia, stands as a private structure that serves primarily for recreation.
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Summary
Built in 1960, this earth-type dam with a buttress core spans 995 feet in length and reaches a height of 9 feet. With a storage capacity of 216 acre-feet, the dam overlooks the TR-Grice Creek and covers a surface area of 34 acres within an 855-acre drainage area.
Although the dam's hazard potential is rated as low, its risk assessment indicates a moderate level of risk. The last inspection took place in July 2010, with a scheduled frequency of once every five years. Despite not having a condition assessment rating, Griners Lake Dam remains a vital structure within the Savannah District of Georgia. With an uncontrolled spillway and outlet gates, the dam enhances the local environment for water resource and climate enthusiasts to enjoy various recreational activities in this picturesque setting.
Year Completed |
1960 |
Dam Length |
995 |
Dam Height |
9 |
River Or Stream |
TR-GRICE CREEK |
Primary Dam Type |
Earth |
Surface Area |
34 |
Hydraulic Height |
9 |
Drainage Area |
855 |
Nid Storage |
216 |
Structural Height |
9 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
9 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Canoochee River Near Claxton
|
86cfs |
Ohoopee River Near Reidsville
|
216cfs |
Black Creek Near Blitchton
|
46cfs |
Peacock Creek At Mcintosh
|
4cfs |
Altamaha River At Doctortown
|
5270cfs |
Altamaha River Near Baxley
|
4780cfs |
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.
Griners Lake Dam