Griggs Lake Dam North Reservoir Report
Last Updated: December 5, 2025
Griggs Lake Dam North, located in Unadilla, Georgia, serves as an essential irrigation resource for the surrounding area.
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Summary
Built in 1972 by the Natural Resources Conservation Service, this earth dam stands at a height of 20 feet and has a storage capacity of 103 acre-feet, with a normal storage level of 41 acre-feet. The dam spans 600 feet and covers a surface area of 6.9 acres, providing vital water access for agricultural purposes in Dooly County.
With a low hazard potential and a moderate risk assessment rating, Griggs Lake Dam North presents a stable and reliable water infrastructure for the region. While the dam has not been state regulated or permitted, it undergoes regular inspections to ensure its structural integrity and operational efficiency. The dam features uncontrolled spillways and outlet gates, making it a crucial component of water management in the area and highlighting the importance of proper maintenance and monitoring to sustain its functionality for the future.
As water resource and climate enthusiasts, the significance of Griggs Lake Dam North lies in its role in supporting local agriculture through irrigation. Its construction and operation by the Natural Resources Conservation Service underscore the importance of sustainable water management practices in ensuring a stable and secure water supply for the community. With ongoing inspections and a commitment to risk management measures, this dam serves as a vital asset for water conservation and agricultural productivity in the region, showcasing the intersection of human development and environmental stewardship in water resource management.
Year Completed |
1972 |
Dam Length |
600 |
Dam Height |
20 |
River Or Stream |
UNKNOWN |
Primary Dam Type |
Earth |
Surface Area |
6.9 |
Hydraulic Height |
18.9 |
Drainage Area |
197 |
Nid Storage |
103 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Tucsawhatchee Creek Near Hawkinsville
|
39cfs |
Ocmulgee River At Hawkinsville
|
2570cfs |
Turkey Creek At Byromville
|
10cfs |
Flint River At Ga 26
|
2200cfs |
Muckalee Creek Near Americus
|
222cfs |
Tobesofkee Creek Near Macon
|
6cfs |
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.
Griggs Lake Dam North