Lewis Lake Dam Reservoir Report
Last Updated: December 6, 2025
Lewis Lake Dam, located in the Brownwood Community of Morgan, Georgia, was completed in 1965 and serves as a private recreation area.
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Summary
The dam, designed by Weyman Carmichael, is an earth dam with a height of 38 feet and a length of 990 feet, creating a reservoir with a normal storage capacity of 338 acre-feet. The dam is classified as having a low hazard potential and a moderate risk assessment.
Although the dam is not regulated by the state, it is subject to regular inspections, with the last one conducted in April 1989. The dam features an uncontrolled spillway and outlet gates, with no associated locks. Despite its age, the dam's condition assessment is listed as "Not Rated," indicating a need for further evaluation. For water resource and climate enthusiasts, Lewis Lake Dam provides a unique opportunity to explore the intersection of human activity and environmental impact in a recreational setting.
Year Completed |
1965 |
Dam Length |
990 |
Dam Height |
38 |
River Or Stream |
UNKNOWN |
Primary Dam Type |
Earth |
Surface Area |
27 |
Nid Storage |
495 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
38 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Alcovy River Above Covington
|
213cfs |
Apalachee River Near Bostwick
|
172cfs |
Oconee River Near Penfield
|
712cfs |
Alcovy River Below Covington
|
287cfs |
Little River Near Eatonton
|
121cfs |
Big Haynes Creek At Bald Rock Road
|
41cfs |
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.
Lewis Lake Dam