Clonts Lake Dam Reservoir Report

Last Updated: December 5, 2025

Clonts Lake Dam, located in Knox, Texas, was completed in 1957 and serves primarily for irrigation purposes.


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Summary

The dam, with a height of 18 feet and a length of 600 feet, holds a storage capacity of 270 acre-feet of water from the Wild Horse Creek. Despite its age, the dam's condition is currently not rated, and it has a high risk assessment due to its hazard potential.

This private-owned earth dam, built with buttress core types, does not have a spillway or locks. Its operation is not regulated by the state, and it is not under the jurisdiction of any state regulatory agency. The dam has not been inspected recently, and its emergency action plan status is unknown. Despite these challenges, Clonts Lake Dam remains a critical infrastructure for irrigation in the region and a point of interest for water resource and climate enthusiasts due to its historical significance and impact on the local ecosystem.

Year Completed

1957

Dam Length

600

Dam Height

18

River Or Stream

WILD HORSE CREEK

Primary Dam Type

Earth

Hydraulic Height

18

Nid Storage

270

Structural Height

18

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

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.