Lake Hemmingwood Reservoir Report

Last Updated: December 11, 2025

Lake Hemmingwood, located in Davidson, Tennessee, is a private water resource regulated by the Tennessee Safe Dams Program.


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Summary

Built in 1958, this earth dam stands at a structural height of 15.9 feet and a hydraulic height of 10.6 feet, with a storage capacity of 40 acre-feet. With a surface area of 3 acres and a drainage area of 0.87 square miles, the dam serves primarily for recreational purposes on the Brentwood Branch river or stream.

Despite its high hazard potential, Lake Hemmingwood is currently in satisfactory condition, as per the last inspection conducted in May 2020. The dam features an uncontrolled spillway with a width of 37 feet, and it does not have any outlet gates or associated structures. While it poses a moderate risk level, appropriate risk management measures are in place to ensure the safety and stability of the dam. With its serene surroundings and recreational opportunities, Lake Hemmingwood is a valuable asset for water resource and climate enthusiasts looking to explore and appreciate the beauty of Tennessee's natural landscapes.

Year Completed

1958

Dam Length

200

River Or Stream

BRENTWOOD BRANCH

Primary Dam Type

Earth

Surface Area

3

Hydraulic Height

10.6

Drainage Area

0.87

Nid Storage

40

Structural Height

15.9

Outlet Gates

None

Hazard Potential

High

Nid Height

16
       
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.