Moon's Lake Dam Reservoir Report

Last Updated: December 5, 2025

Moon's Lake Dam, located in the Rosebud Community of Georgia, was completed in 1970 with a primary purpose of providing recreation opportunities.


°F

°F

mph

Wind

%

Humidity

Summary

This privately-owned Earth dam stands at a height of 25 feet, with a hydraulic height of 16 feet and a length of 306 feet. The dam has a storage capacity of 53 acre-feet, with a normal storage level of 47 acre-feet, covering a surface area of 7 acres.

Despite being classified as having a low hazard potential and not currently regulated by the state, Moon's Lake Dam presents a moderate risk due to its condition assessment being labeled as "Not Rated." With uncontrolled spillways and outlets, the dam may pose a potential risk that requires closer monitoring. Although the dam has not been inspected recently, its risk assessment indicates the need for proactive risk management measures to ensure the safety and integrity of the structure for the surrounding community and the environment.

Overall, Moon's Lake Dam serves as a significant recreational site in Gwinnett County, Georgia, offering opportunities for outdoor activities and enjoyment. As water resource and climate enthusiasts continue to engage with the management and maintenance of dams like Moon's Lake, it is essential to prioritize regular inspections, risk assessments, and emergency preparedness to mitigate potential hazards and ensure the long-term sustainability of these vital water structures.

Year Completed

1970

Dam Length

306

Dam Height

25

River Or Stream

UNKNOWN

Primary Dam Type

Earth

Surface Area

7

Hydraulic Height

16

Nid Storage

53

Structural Height

16

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

25
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.