Bonner Lake Dam Reservoir Report

Last Updated: December 5, 2025

Bonner Lake Dam, located in Elbert, Georgia, is a federal-owned structure with a buttress core type and a height of 21 feet.


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Summary

The dam, completed in an unspecified year, stands at 225 feet in length and has a storage capacity of 61 acre-feet. Despite its uncontrolled spillway and outlet gates, the dam has a moderate hazard potential and a risk assessment rating of 3, indicating a level of risk management measures in place.

The condition of Bonner Lake Dam is currently rated as "Not Rated," with the last inspection date recorded in September 1984. While the dam's hazard potential is undetermined, its risk assessment suggests a need for ongoing monitoring and maintenance. With its location in the Charleston District and oversight by federal agencies, such as the US Army Corps of Engineers, Bonner Lake Dam remains a vital structure for water resource management in the region, providing crucial storage and flood control capabilities.

For water resource and climate enthusiasts, Bonner Lake Dam offers a fascinating case study in dam infrastructure and risk management. With its unique design features, moderate hazard potential, and historical inspection data, the dam presents an opportunity for further study and evaluation of the intersection between water resources, climate resilience, and infrastructure maintenance.

Dam Length

225

Dam Height

21

Surface Area

9

Hydraulic Height

15

Nid Storage

61

Structural Height

15

Outlet Gates

Uncontrolled

Hazard Potential

Undetermined

Foundations

Unlisted/Unknown

Nid Height

21
       
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.