James Lake Dam Reservoir Report

Last Updated: December 5, 2025

James Lake Dam, also known as Cole Lake Dam, is a private earth dam located in Macon, Georgia, near the city of Montezuma.


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Summary

Built in 1959 by the Natural Resources Conservation Service, this recreational dam stands at a height of 38.2 feet with a hydraulic height of 30.8 feet. It has a storage capacity of 165 acre-feet and covers a surface area of 9 acres, serving as a popular spot for outdoor activities in the area.

Despite being unlisted for its hazard potential, the dam is categorized as low risk with a moderate risk assessment score of 3. The last inspection in May 2018 deemed its condition as not rated, highlighting the importance of regular monitoring and maintenance. Although the dam does not have a state regulatory agency overseeing its operations, it is subject to state jurisdiction and inspection, ensuring its safety for visitors and nearby residents.

With its picturesque location and recreational offerings, James Lake Dam provides a peaceful escape for water resource and climate enthusiasts. Whether fishing, boating, or simply enjoying the tranquil surroundings, this private gem in Georgia offers a unique opportunity to connect with nature and appreciate the importance of responsible dam management in preserving our water resources.

Year Completed

1959

Dam Length

480

Dam Height

38.2

River Or Stream

Name unknown

Primary Dam Type

Earth

Surface Area

9

Hydraulic Height

30.8

Drainage Area

55

Nid Storage

165

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

38
       
Seasonal Comparison

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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.