Straley Lake Dam Reservoir Report

Last Updated: December 5, 2025

Straley Lake Dam, located in Callahan, Texas, is a privately owned Earth dam completed in 1940 for the primary purposes of fire protection, stock, and small fish pond management.


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Summary

Standing at a height of 21 feet with a length of 740 feet, this dam has a storage capacity of 193 acre-feet and a surface area of 15 acres. Despite its relatively small size, the dam plays a crucial role in providing water resources for the local area.

With a risk assessment rating of "High (2)", Straley Lake Dam is an important structure that requires careful monitoring and maintenance to ensure its safety and functionality. Although it is not regulated by the state and lacks certain emergency preparedness measures, such as an Emergency Action Plan (EAP), the dam serves as a valuable asset for water storage and protection against potential hazards. For water resource and climate enthusiasts, Straley Lake Dam offers a fascinating insight into the management of small-scale water infrastructure in rural Texas.

Year Completed

1940

Dam Length

740

Dam Height

21

River Or Stream

TR-CLEAR CREEK

Primary Dam Type

Earth

Surface Area

15

Hydraulic Height

21

Nid Storage

193

Structural Height

21

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

21
       
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.