Lake Mayer Dam Reservoir Report

Last Updated: December 5, 2025

Lake Mayer Dam, located in Chatham, Georgia, is a local government-owned structure primarily used for recreation purposes.


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Summary

This earth dam, with a height of 9 feet and a length of 3200 feet, provides a maximum storage capacity of 382 acre-feet and a normal storage capacity of 59 acre-feet. The dam, constructed without a spillway, features uncontrolled outlet gates and a low hazard potential, making it a relatively safe structure.

While the dam's condition assessment is currently not rated, it underwent its last inspection in March 2016, with a scheduled inspection frequency of every 5 years. Despite being non-regulated by the state, it is subject to state jurisdiction and inspection. The risk assessment categorizes the dam as moderate (3), indicating a moderate level of risk associated with its operation. With its scenic surroundings and recreational opportunities, Lake Mayer Dam stands as a vital water resource for the local community and a point of interest for water resource and climate enthusiasts.

Dam Length

3200

Dam Height

9

Primary Dam Type

Earth

Surface Area

44

Drainage Area

79

Nid Storage

382

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

9
       
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.