Buford Dam Reservoir Report

Last Updated: December 5, 2025

Buford Dam, also known as Lake Sidney Lanier, is a crucial federal structure located on the Chattahoochee River in Georgia's Gwinnett County.


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Summary

Completed in 1958 by the US Army Corps of Engineers, this earth dam serves primarily for flood risk reduction but also supports hydroelectric power generation and recreational activities. With a height of 231 feet and a storage capacity of 2.55 million acre-feet, Buford Dam plays a vital role in water resource management and protection in the Atlanta metropolitan area.

Despite being classified as having a high hazard potential, Buford Dam is well-designed, well-constructed, and well-maintained. The risk assessment conducted by the US Army Corps of Engineers in 2020 identified moderate risks associated with the dam, highlighting potential scenarios of catastrophic flooding downstream in case of a dam failure. To manage these risks, the Corps continuously collaborates with local emergency managers, updates emergency action plans, conducts regular inspections, and engages in maintenance and repair activities when needed.

As a water resource and climate enthusiast, staying informed about the risk management measures for Buford Dam is crucial. Engaging with local representatives, purchasing flood insurance, creating a family emergency plan, and being aware of evacuation routes are essential steps to ensure preparedness and safety in the event of a major flood. By following updates from the Mobile District and Lake Lanier on social media and taking proactive measures, individuals can contribute to the resilience of the community and the protection of water resources in the region.

Year Completed

1958

Dam Length

2470

River Or Stream

CHATTAHOOCHEE RIVER

Primary Dam Type

Earth

Surface Area

47182

Hydraulic Height

193

Drainage Area

1040

Nid Storage

2554000

Structural Height

231

Outlet Gates

Slide (sluice gate) - 2, Valve - 0

Hazard Potential

High

Foundations

Rock

Nid Height

231
       
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.