Linger Lake Reservoir Report

Last Updated: December 6, 2025

Linger Lake, located in Cumberland, Tennessee, is a privately owned reservoir regulated by the Tennessee Safe Dams Program.


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Summary

The dam, completed in 1920, stands at a structural height of 14.7 feet with a hydraulic height of 13.4 feet, serving primarily for recreational purposes. With a normal storage capacity of 210 acre-feet and a drainage area of 0.72 square miles, the lake covers a surface area of 35 acres and has a maximum storage capacity of 258 acre-feet.

Despite its low hazard potential and satisfactory condition assessment, Linger Lake poses a moderate risk according to the Risk Assessment scale. The dam features an uncontrolled spillway and lacks outlet gates, but has not required modifications over the years. The last inspection in April 2018 deemed the structure to be in good shape. With its scenic location along Wallace Branch and approval for state permitting, inspection, and enforcement, Linger Lake remains a beloved spot for water resource and climate enthusiasts to enjoy nature and recreational activities in Oakhill, Tennessee.

Year Completed

1920

Dam Length

275

River Or Stream

WALLACE BRANCH

Primary Dam Type

Earth

Surface Area

35

Hydraulic Height

13.4

Drainage Area

0.72

Nid Storage

258

Structural Height

14.7

Outlet Gates

None

Hazard Potential

Low

Nid Height

15
       
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.