Rocky Mtn Sw Ii Reservoir Report

Last Updated: December 5, 2025

Rocky Mtn Sw II, also known as Auxiliary Pool II - Sw II, is a private dam located in Armuchee, Georgia, along Heath Creek and the Armuchee River.


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Summary

Built in 1992 by Harza Engineering, this gravity-type dam stands at 50 feet tall and has a hydraulic height of 23 feet, with a storage capacity of 6500 acre-feet. The dam serves purposes beyond water resource management, including recreation, with a surface area of 200 acres for outdoor activities.

Owned privately, Rocky Mtn Sw II falls under the jurisdiction of the Federal Energy Regulatory Commission, which oversees its operation and inspection. Although categorized as low hazard potential with a moderate risk assessment, the dam is considered to be in good condition, with a recent inspection in June 2021 showing no major issues. With a spillway width of 105 feet and a maximum discharge rate of 11,200 cubic feet per second, the dam plays a crucial role in managing water flow in the region.

While the dam does not have state regulatory oversight, its location in Floyd County, Georgia, highlights its importance in the local landscape. Its proximity to the city of Armuchee and the involvement of federal agencies in its management underline the significance of Rocky Mtn Sw II in water resource and climate discussions for enthusiasts in the region.

Year Completed

1992

Dam Length

109

Dam Height

8

River Or Stream

Heath Creek, Armuchee River

Primary Dam Type

Gravity

Surface Area

200

Hydraulic Height

23

Nid Storage

6500

Structural Height

50

Hazard Potential

Low

Foundations

Rock

Nid Height

50
       
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.