Atlanta Automotive Distribution Center Detention Dam Reservoir Report

Last Updated: December 5, 2025

The Atlanta Automotive Distribution Center Detention Dam, completed in 1991, serves as a crucial flood risk reduction structure in Lawrenceville, Georgia.


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Summary

Designed by MAYES, SUDDERTH, & ETHERIDGE, this private Earth dam stands at a height of 48 feet and spans 1800 feet in length. With a storage capacity of 22 acre-feet and a spillway type classified as "Uncontrolled", this dam plays a vital role in managing water flow and reducing the risk of flooding in the area.

Located in Gwinnett County, this dam is owned and operated by a private entity, with inspections conducted every 5 years to ensure its structural integrity. Despite having a low hazard potential and a moderate risk assessment rating, the dam's condition is currently not rated. While it may not be regulated by the state, its importance in flood mitigation efforts cannot be understated, making it a key component in the region's water resource management and climate adaptation strategies.

As climate change continues to impact weather patterns and increase the frequency of extreme precipitation events, structures like the Atlanta Automotive Distribution Center Detention Dam play a crucial role in safeguarding communities against the threat of flooding. With its strategic location and purposeful design, this dam stands as a testament to the collaborative efforts between private entities and government agencies in ensuring the resilience of water resources in the face of a changing climate.

Year Completed

1991

Dam Length

1800

Dam Height

48

River Or Stream

UNKNOWN

Primary Dam Type

Earth

Nid Storage

22

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

48
       
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.