Poplar Grove #1 Reservoir Report

Last Updated: December 13, 2025

Poplar Grove #1 is a privately-owned earth dam located in Williamson County, Tennessee, along Carters Creek.


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Summary

Built in 1950, this dam stands at a hydraulic height of 19.6 feet and a structural height of 22.1 feet, with a length of 125 feet. It has a normal storage capacity of 23 acre-feet and a maximum storage capacity of 31 acre-feet, covering a surface area of 3 acres with a drainage area of 0.14 square miles.

Despite being deemed significant in terms of hazard potential, the condition of Poplar Grove #1 has not been rated as of the last inspection in May 2019. While the dam has not been modified in recent years and lacks outlet gates, it features an uncontrolled spillway type. With a moderate risk assessment score of 3, there is a need for ongoing risk management measures and potential emergency action planning for this dam in case of unforeseen events.

Given its location and the potential impact on the surrounding area, water resource and climate enthusiasts should monitor Poplar Grove #1 closely to ensure the safety and integrity of this structure. As a vital component of the local water management system, maintaining the proper upkeep and risk mitigation strategies for this dam is essential to safeguarding the community and environment it serves.

Year Completed

1950

Dam Length

125

River Or Stream

CARTERS CREEK

Primary Dam Type

Earth

Surface Area

3

Hydraulic Height

19.6

Drainage Area

0.14

Nid Storage

31

Structural Height

22.1

Outlet Gates

None

Hazard Potential

Significant

Nid Height

22
       
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.