Harrison Lake Dam Reservoir Report

Last Updated: December 13, 2025

Harrison Lake Dam, located in Laurens, Georgia, is a privately owned structure primarily used for recreation.


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Summary

The earth dam stands at a height of 18 feet and has a length of 405 feet, providing storage capacity of 96 acre-feet. The dam, constructed with a buttress core type, has a spillway type designated as uncontrolled, with uncontrolled outlet gates.

Despite being in a low hazard potential category, the dam's risk assessment is classified as moderate. The last inspection of Harrison Lake Dam was conducted in March 1988, with its condition currently marked as not rated. While the dam does not fall under state jurisdiction or regulation, it serves an important role in water resource management in the area, with a drainage area of 900 acres and a surface area of 7 acres.

Water resource and climate enthusiasts may find Harrison Lake Dam an intriguing site to explore, with its unique design features and recreational purpose. As an earth dam with a moderate risk assessment, further research and monitoring could provide valuable insights into the resilience and sustainability of this essential water infrastructure in the Savannah District.

Dam Length

405

Dam Height

18

River Or Stream

UNKNOWN

Primary Dam Type

Earth

Surface Area

7

Drainage Area

900

Nid Storage

96

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

18
       
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.