Bluegrass Detention Pond Dam No 2 Reservoir Report

Last Updated: December 6, 2025

Bluegrass Detention Pond Dam No 2 in Alpharetta, Georgia, is a private earth dam completed in 1991 with a primary purpose of serving as a detention pond.


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Summary

Designed by Jordan Jones and Goulding, this dam stands at a height of 25 feet and stretches 240 feet in length. It has a storage capacity of 19 acre-feet and a surface area of 2 acres, with an uncontrolled spillway and outlet gates.

Although the dam is classified as low hazard potential, its risk assessment indicates a moderate level of risk. The last inspection took place in 2005, with a scheduled inspection frequency of every 5 years. The condition of the dam is currently not rated, and there is no emergency action plan (EAP) in place. With its location in Forsyth County, Georgia, the dam plays a crucial role in controlling water flow and mitigating potential flood risks in the area.

Overall, Bluegrass Detention Pond Dam No 2 serves as an important infrastructure for water resource management in the region. While it has not undergone recent assessments, its design and construction have stood the test of time since its completion. As climate change continues to pose challenges to water resources, monitoring and maintenance of dams like this are essential to ensure their continued functionality and safety.

Year Completed

1991

Dam Length

240

Dam Height

25

Primary Dam Type

Earth

Surface Area

2

Nid Storage

19

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

25
       
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.