Lake Pat Cleburne Dam Reservoir Report

Last Updated: December 5, 2025

Lake Pat Cleburne Dam, located in Blum, Texas, is a vital structure managed by the local government for water supply purposes.


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Summary

Built in 1964 by designer Homer A Hunter, the earth dam stands at a height of 78 feet and spans 5190 feet in length. The dam's reservoir has a maximum storage capacity of 66,700 acre-feet and covers a surface area of 1550 acres, drawing water from the Nolan River.

With a fair condition assessment as of December 2015, the dam is regulated by the Texas Commission on Environmental Quality (TCEQ) and undergoes regular inspections every five years to ensure its structural integrity. The spillway, with a width of 638 feet, is uncontrolled and capable of releasing a maximum discharge of 71,656 cubic feet per second in case of emergency. Despite a moderate risk assessment level, the dam's hazard potential is currently not available, highlighting the importance of continued monitoring and risk management measures.

Lake Pat Cleburne Dam plays a crucial role in water resource management for Johnson County, Texas, providing a reliable source of water for agricultural, industrial, and municipal use. As an essential infrastructure for the region, the dam's operation and maintenance are critical to safeguarding against potential risks and ensuring a sustainable water supply for the surrounding communities.

Year Completed

1964

Dam Length

5190

Dam Height

78

River Or Stream

NOLAN RIVER

Primary Dam Type

Earth

Surface Area

1550

Hydraulic Height

78

Drainage Area

100

Nid Storage

66700

Structural Height

78

Outlet Gates

Slide (sluice gate) - 2, Uncontrolled - 2, Valve - 2

Hazard Potential

Not Available

Foundations

Soil

Nid Height

78
       
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.