Harper Lake Dam Reservoir Report

Last Updated: December 13, 2025

Harper Lake Dam in Georgia, managed by a private owner, serves primarily for recreational purposes.


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Summary

This earth dam stands at a height of 23 feet with a hydraulic height of 18.4 feet, creating a storage capacity of 127.2 acre-feet. The dam's low hazard potential and moderate risk assessment suggest a relatively stable structure, although it has not been rated for its current condition.

Located in Sumter County, Georgia, with a surface area of 12 acres, Harper Lake Dam provides a picturesque setting for water resource and climate enthusiasts to explore. The dam's uncontrolled spillway and outlet gates hint at a simpler design, yet its functionality for recreation remains a key feature. Despite its unknown construction date, the dam's historical significance and environmental impact are worth further investigation.

With its tranquil waters and surrounding natural beauty, Harper Lake Dam offers a unique opportunity for visitors to connect with the local environment and appreciate the importance of sustainable water management. As climate change continues to impact water resources, understanding the role of dams like Harper Lake in maintaining ecological balance becomes increasingly crucial. Exploring this hidden gem in Georgia can provide valuable insights into the intersection of water conservation, recreation, and environmental stewardship.

Dam Length

870

Dam Height

23

River Or Stream

UNKNOWN

Primary Dam Type

Earth

Surface Area

12

Hydraulic Height

18.4

Nid Storage

127.2

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

23
       
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.