Cedar Creek Reservoir Report

Last Updated: December 12, 2025

Cedar Creek, located in McNairy, Tennessee, is a privately-owned dam regulated by the Tennessee Safe Dams Program.


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Summary

Completed in 1994, this earth dam stands at a structural height of 18 feet with a hydraulic height of 13 feet. The dam serves primarily for recreational purposes, offering a surface area of 23 acres and a normal storage capacity of 138 acre-feet for activities like fishing and boating.

With a low hazard potential and a satisfactory condition assessment, Cedar Creek provides a safe and enjoyable environment for water enthusiasts. The dam has a drainage area of 0.78 square miles and is associated with the Tribmorphis Creek. Despite its uncontrolled spillway type, the dam has a moderate risk assessment rating of 3, indicating a moderate level of risk management measures in place.

Managed by the Mobile District of the US Army Corps of Engineers, Cedar Creek has a maximum storage capacity of 273 acre-feet and undergoes inspections every three years to ensure its continued safety and functionality. The dam's location, surrounded by the natural beauty of Tennessee, makes it a popular destination for outdoor recreation, attracting visitors who appreciate its serene setting and water-based activities.

Year Completed

1994

Dam Length

600

River Or Stream

TRIBMORPHIS CREEK

Primary Dam Type

Earth

Surface Area

23

Hydraulic Height

13

Drainage Area

0.78

Nid Storage

273

Structural Height

18

Outlet Gates

None

Hazard Potential

Low

Nid Height

18
       
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.