Phipps Reservoir Report

Last Updated: December 5, 2025

Phipps is a privately owned earth dam located in Grundy, Tennessee, along the Sally Creek.


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Summary

Built in 1991, this dam stands at a hydraulic height of 32 feet and a structural height of 35 feet, with a maximum storage capacity of 160 acre-feet. With a surface area of 10 acres and a normal storage capacity of 125 acre-feet, Phipps serves as a vital water resource in the region.

Although Phipps has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment, it is still subject to regular inspections every five years to ensure its safety and functionality. The dam features an uncontrolled spillway type with no outlet gates, further emphasizing the importance of proper risk management measures. With a moderate risk assessment score of 3, it is crucial for water resource and climate enthusiasts to stay informed about the maintenance and upkeep of Phipps to prevent any potential hazards or risks associated with its operation.

As part of the Nashville District, Phipps plays a significant role in water management and conservation efforts in the region. While it is not regulated by the state and has no permitting or inspection requirements, the presence of this dam highlights the importance of private initiatives in maintaining and safeguarding water resources. With its strategic location and vital storage capacity, Phipps serves as a valuable asset for the community and underscores the need for proactive risk management strategies to ensure its long-term sustainability in the face of changing climate conditions.

Year Completed

1991

River Or Stream

SALLY CREEK

Primary Dam Type

Earth

Surface Area

10

Hydraulic Height

32

Nid Storage

160

Structural Height

35

Outlet Gates

None

Hazard Potential

Low

Nid Height

35
       
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.