Blackmon Lake Dam Reservoir Report

Last Updated: December 5, 2025

Blackmon Lake Dam in Muscogee, Georgia, is a privately owned earth dam constructed in 1955 primarily for recreation purposes.


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Summary

Standing at a height of 30 feet and spanning 620 feet in length, this dam has a storage capacity of 800 acre-feet and covers a surface area of 28 acres. Despite its intended recreational use, the dam poses a high hazard potential and is currently classified as being in poor condition.

Managed by the Georgia-SAFE DAMS PROGRAM, Blackmon Lake Dam undergoes regular state inspections, with the last assessment conducted in March 2017. The dam's maintenance and safety protocols are deemed to be in need of improvement, as indicated by its moderate risk assessment rating of 3. Enforcing agencies are actively involved in monitoring the dam's structural integrity and ensuring compliance with state regulations to mitigate potential risks to the surrounding environment and community.

While Blackmon Lake Dam serves as a popular recreational spot in the Biggers Lake Environs, its current condition and hazard potential highlight the importance of ongoing maintenance and risk management measures. As water resource and climate enthusiasts, staying informed about the dam's status and advocating for necessary improvements can help safeguard both the dam's recreational value and the safety of those who enjoy it.

Year Completed

1955

Dam Length

620

Dam Height

30

River Or Stream

UNKNOWN

Primary Dam Type

Earth

Surface Area

28

Drainage Area

620

Nid Storage

800

Outlet Gates

Uncontrolled

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

30
       
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.