State Tech Lake Reservoir Report

Last Updated: December 7, 2025

State Tech Lake is a man-made reservoir located in Shelby, Tennessee, with a primary purpose that is not specified in the data.


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Summary

The dam, completed in 1941, is of Earth type, with a hydraulic height of 7.5 feet and a structural height of 11.4 feet. It has a maximum storage capacity of 80 acre-feet and a normal storage capacity of 24 acre-feet, covering a surface area of 6 acres and serving a drainage area of 0.16 square miles.

Managed by the Tennessee Safe Dams Program, State Tech Lake is regulated, permitted, inspected, and enforced by the state of Tennessee. The dam has a low hazard potential and is in satisfactory condition as assessed in June 2019. Despite its uncontrolled spillway type and lack of outlet gates, the risk assessment for the dam is moderate, with no designated emergency action plan or inundation maps prepared. The dam is not owned or funded by federal agencies, but it falls under the jurisdiction of the Memphis District of the US Army Corps of Engineers.

Water resource and climate enthusiasts interested in State Tech Lake would find it to be a well-maintained and regulated reservoir in Tennessee, with a moderate risk level and satisfactory condition. Its location near the Tribwolf River and its low hazard potential make it a valuable asset for water management in the region. Further research and monitoring may be needed to ensure the dam's continued safety and effectiveness in the face of changing climate conditions.

Year Completed

1941

Dam Length

1150

River Or Stream

TRIBWOLF RIVER

Primary Dam Type

Earth

Surface Area

6

Hydraulic Height

7.5

Drainage Area

0.16

Nid Storage

80

Structural Height

11.4

Outlet Gates

None

Hazard Potential

Low

Nid Height

11
       
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.