Cajun Lake #1 Reservoir Report

Last Updated: December 13, 2025

Cajun Lake #1 is a privately owned dam in Dickson, Tennessee, regulated by the Tennessee Safe Dams Program.


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Summary

Built in 1949, this earth dam stands at a hydraulic height of 29.2 feet and a structural height of 33.2 feet, with a length of 178 feet. The dam serves primarily for recreational purposes, with a storage capacity of 75 acre-feet and a surface area of 4.7 acres.

With a low hazard potential and a satisfactory condition assessment, Cajun Lake #1 presents a moderate risk level. The dam has a history of regular inspections, with the last examination conducted in July 2020. Despite its uncontrolled spillway type, the dam has no associated locks or outlet gates, making it a relatively simple structure in terms of hydraulic management.

Enthusiasts of water resources and climate will find Cajun Lake #1 an intriguing example of a small, privately owned dam that harmonizes with the natural surroundings of Dickson, Tennessee. Its recreational purpose and moderate risk level provide a captivating study of how dams can balance human enjoyment with safety and environmental considerations in a regulated state jurisdiction.

Year Completed

1949

Dam Length

178

River Or Stream

TRIBJONES CREEK

Primary Dam Type

Earth

Surface Area

4.7

Hydraulic Height

29.2

Drainage Area

0.26

Nid Storage

75

Structural Height

33.2

Outlet Gates

None

Hazard Potential

Low

Nid Height

33
       
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.