Collins Lake Dam Reservoir Report
Nearby: Lake Floree Dam Herrin Pond Dam
Last Updated: December 13, 2025
Collins Lake Dam, located in Brantley, Georgia, is a privately owned structure that stands at a height of 20 feet and has a storage capacity of 160 acre-feet.
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Summary
This earth dam, with a buttress core type, serves a primary purpose that is unspecified. While the dam is not state regulated, it undergoes regular inspections to ensure its structural integrity and safety. The hazard potential of the dam is rated as low, with a moderate risk assessment score of 3.
Despite its uncontrolled spillway and outlet gates, Collins Lake Dam has not been modified in recent years and has not been assigned a Dam Safety Action Classification (DSAC). The dam's condition assessment is marked as "Not Rated," but it meets inspection guidelines every 5 years. The risk management measures and emergency action plan status for the dam are currently unlisted. With its moderate risk assessment and low hazard potential, Collins Lake Dam remains a key feature for water resource and climate enthusiasts to monitor in the region.
Dam Height |
20 |
Primary Dam Type |
Earth |
Nid Storage |
160 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Satilla River Near Waycross
|
117cfs |
Little Satilla River Near Offerman
|
14cfs |
Satilla River At Atkinson
|
208cfs |
Altamaha River At Doctortown
|
5190cfs |
Suwannee River At Us 441
|
180cfs |
North Prong St. Marys River At Moniac
|
0cfs |
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.
Collins Lake Dam