Hammontree Reservoir Report

Last Updated: December 5, 2025

Hammontree is a privately owned earth dam located in Loudon, Tennessee, near Lenoir City.


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Summary

Built in 1974 on Sinking Creek, this dam stands at a hydraulic height of 26.3 feet and a structural height of 28 feet, with a length of 190 feet. With a storage capacity of 102 acre-feet and a normal storage of 96 acre-feet, Hammontree covers a surface area of 7.3 acres and serves a drainage area of 0.26 square miles.

The dam features an uncontrolled spillway and has been deemed to have a significant hazard potential. Despite not being rated for condition assessment, the dam undergoes inspections every five years, with the last inspection conducted in July 2018. While Hammontree has a moderate risk level, specific risk management measures are not specified in the available data. The dam does not have a designated Emergency Action Plan (EAP) and lacks inundation maps and updated emergency contacts as of the latest data update in March 2021.

Water resource and climate enthusiasts interested in the infrastructure of dams and their environmental impact may find Hammontree's characteristics and risk assessment intriguing. The dam's location on Sinking Creek in Tennessee, its storage capacity, and hazard potential contribute to its significance within the region. Understanding the risk factors associated with dams like Hammontree is crucial for ensuring the safety of surrounding communities and the preservation of water resources in the face of changing climatic conditions.

Year Completed

1974

Dam Length

190

River Or Stream

SINKING CREEK

Primary Dam Type

Earth

Surface Area

7.3

Hydraulic Height

26.3

Drainage Area

0.26

Nid Storage

102

Structural Height

28

Outlet Gates

None

Hazard Potential

Significant

Nid Height

28
       
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.