Coker Lake Dam Reservoir Report

Last Updated: December 5, 2025

Coker Lake Dam, located in Cass County, Texas, was completed in 1965 and serves multiple purposes including fire protection, stock, and small fish pond.


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Summary

This private earth dam stands at a height of 15 feet and spans 450 feet in length, with a storage capacity of 190 acre-feet. Although the dam does not have a spillway, it is equipped with a single outlet gate for water release.

The dam is situated on Kelly Creek and is under the jurisdiction of the state of Texas with permitting and inspection requirements in place. Despite not being regulated by a state agency, the dam is recognized as having a high hazard potential. Its condition is currently not rated, but it is essential for water resource and climate enthusiasts to monitor its risk management measures and overall safety, especially given the potential consequences of failure. Overall, Coker Lake Dam stands as a crucial structure for local water management and wildlife support in the region.

Year Completed

1965

Dam Length

450

Dam Height

15

River Or Stream

TR-KELLY CREEK

Primary Dam Type

Earth

Surface Area

12

Hydraulic Height

15

Nid Storage

190

Structural Height

15

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

15
       
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.