Tri-County Lake Dam Reservoir Report

Last Updated: December 5, 2025

Tri-County Lake Dam, located in Calhoun, Arkansas, was completed in 1962 and serves as a recreational water resource for the area.


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Summary

This earth dam stands at a height of 16 feet and has a hydraulic height of 11 feet, creating a storage capacity of 2,910 acre-feet with a normal storage level of 1,230 acre-feet. The dam stretches 3,000 feet in length and covers a surface area of 288.9 acres, drawing water from Caney Creek.

Managed by the state government, Tri-County Lake Dam is not regulated or inspected by state agencies. Despite its low hazard potential and unassessed condition, the dam remains a vital asset for recreation and water management in the region. With a maximum discharge capacity of 1,610 cubic feet per second, the dam plays a crucial role in flood control and maintaining the water levels in the surrounding area.

Although lacking in some regulatory oversight and inspection, Tri-County Lake Dam continues to provide valuable recreational opportunities and water storage capabilities for the community. As a key feature in the local landscape, this dam stands as a testament to the importance of water resource management in the face of changing climate patterns and increasing demands on water sources.

Year Completed

1962

Dam Length

3000

Dam Height

16

River Or Stream

CANEY CREEK

Primary Dam Type

Earth

Surface Area

288.9

Hydraulic Height

11

Drainage Area

14.48

Nid Storage

2910

Structural Height

16

Hazard Potential

Low

Nid Height

16
       
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.