Sonny Hammond Lake Dam Reservoir Report
Last Updated: December 14, 2025
Sonny Hammond Lake Dam, located in Upson, Georgia, is a private-owned structure completed in 1975 for recreational purposes.
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Summary
This earth dam stands at 28 feet high and stretches 330 feet in length, with a storage capacity of 101 acre-feet and a surface area of 8 acres. Despite its low hazard potential, the dam's risk assessment is moderate, indicating a need for ongoing monitoring and management measures.
Managed by the Savannah District of the U.S. Army Corps of Engineers, Sonny Hammond Lake Dam is inspected every five years, with the last assessment conducted in June 2018. The dam features an uncontrolled spillway and outlet gates, with no state regulation or permitting required for its operation. While the condition assessment of the dam is currently not rated, its location in the Roland Environs area offers a picturesque setting for water resource and climate enthusiasts to explore and appreciate the intersection of human-made infrastructure and natural beauty.
Year Completed |
1975 |
Dam Length |
330 |
Dam Height |
28 |
River Or Stream |
UNKNOWN |
Primary Dam Type |
Earth |
Surface Area |
8 |
Drainage Area |
170 |
Nid Storage |
101 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
28 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Flint River Near Culloden
|
677cfs |
Flint River Near Griffin
|
89cfs |
Shoal Creek At Shoal Creek Rd
|
15cfs |
Line Creek Near Senoia
|
31cfs |
Tobesofkee Creek Near Macon
|
6cfs |
Flint River Near Lovejoy
|
53cfs |
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.
Sonny Hammond Lake Dam