Lochnevin Reservoir Report

Last Updated: December 12, 2025

Lochnevin is a privately owned dam located in Shelby, Tennessee, on the Tribwolf River.


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Summary

Built in 1958, this earth dam stands at a structural height of 9.2 feet and has a hydraulic height of 5 feet. With a storage capacity of 100 acre-feet and a normal storage of 30 acre-feet, Lochnevin covers a surface area of 10.5 acres and serves a drainage area of 0.49 square miles.

Managed by the Tennessee Safe Dams Program, Lochnevin is regulated, permitted, inspected, and enforced by the state of Tennessee. Despite its satisfactory condition assessment as of June 2020, Lochnevin poses a high hazard potential due to its uncontrolled spillway type. With a moderate risk classification, Lochnevin remains under close monitoring and management to ensure the safety of the surrounding community and environment.

Located in the Memphis District and under the jurisdiction of the state of Tennessee, Lochnevin stands as a vital water resource infrastructure within the region. Its history, design, and purpose in water management make it a significant component in the local climate and ecology, highlighting the importance of responsible dam maintenance and regulation in safeguarding water resources for future generations.

Year Completed

1958

Dam Length

559

River Or Stream

TRIBWOLF RIVER

Primary Dam Type

Earth

Surface Area

10.5

Hydraulic Height

5

Drainage Area

0.49

Nid Storage

100

Structural Height

9.2

Outlet Gates

None

Hazard Potential

High

Nid Height

9
       
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.