Rocky Mtn Dam G Reservoir Report

Last Updated: December 5, 2025

Rocky Mtn Dam G, also known as Auxiliary Pool II - Dam G, is a private-owned structure located in Floyd, Georgia, specifically in the city of Armuchee.


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Summary

Completed in 1991, this earth dam stands at a height of 46 feet with a hydraulic height of 47 feet, serving a primary purpose of recreation and other activities. Designed by HARZA Engineering, the dam boasts a multi-arch core type with a rock foundation, providing a storage capacity of 6,500 acre-feet and a normal storage level of 1,800 acre-feet.

Situated on Heath Creek and the Armuchee River, Rocky Mtn Dam G offers a surface area of 200 acres for various water-related activities. Despite its low hazard potential, the dam is regulated by the Federal Energy Regulatory Commission and undergoes inspections every three years, with the last inspection conducted in June 2021. While there are no spillways or outlet gates associated with the structure, its risk assessment indicates a high level of risk management measures in place, ensuring the safety and stability of the dam for both the surrounding community and the environment.

Overall, Rocky Mtn Dam G is a vital component of the water resource infrastructure in Georgia, aligning with the state's jurisdiction and regulations. With its impressive design and capacity for recreation, this dam serves as a testament to responsible water management and the importance of maintaining critical structures for climate resilience and sustainable water use in the region.

Year Completed

1991

Dam Length

430

Dam Height

46

River Or Stream

Heath Creek, Armuchee River

Primary Dam Type

Earth

Surface Area

200

Hydraulic Height

47

Nid Storage

6500

Structural Height

30

Hazard Potential

Low

Foundations

Rock

Nid Height

47
       
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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.