Rocky Mtn Dam D Reservoir Report

Last Updated: December 6, 2025

Rocky Mtn Dam D, also known as Auxiliary Pool I - Dam D, is a privately owned earth dam located in Floyd, Georgia, along Heath Creek and the Armuchee River.


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Summary

Built in 1991 by HARZA ENGINEERING, this structure stands at a height of 60 feet with a hydraulic height of 61 feet and a structural height of 65 feet. It serves a primary purpose of recreation and has a storage capacity of 10,000 acre-feet, with a normal storage level of 5,260 acre-feet.

Managed by the Federal Energy Regulatory Commission, Rocky Mtn Dam D poses a low hazard potential and has a condition assessment listed as "Not Available." Despite its high risk rating, with a score of 2, the dam has not been modified since its completion. The dam does not have a spillway, locks, or outlet gates, but it is inspected every three years to ensure its structural integrity and safety. With its picturesque location and recreational opportunities, Rocky Mtn Dam D is a vital part of the water resource infrastructure in the region, providing both enjoyment and essential water management services to the surrounding community.

Overall, Rocky Mtn Dam D plays a crucial role in water resource management in Georgia, offering a balance between recreational use and the storage of water. With its low hazard potential and regular inspections, the dam stands as a reliable structure designed to withstand potential risks. As climate change continues to impact water resources, the importance of well-maintained dams like Rocky Mtn Dam D becomes increasingly evident, emphasizing the need for ongoing monitoring and maintenance to ensure the safety and sustainability of our water infrastructure.

Year Completed

1991

Dam Length

1250

Dam Height

60

River Or Stream

Heath Creek, Armuchee River

Primary Dam Type

Earth

Surface Area

400

Hydraulic Height

61

Nid Storage

10000

Structural Height

65

Hazard Potential

Low

Foundations

Rock, Soil

Nid Height

65
       
Seasonal Comparison

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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.