Houston County Lake Dam Reservoir Report

Last Updated: December 5, 2025

Houston County Lake Dam, located in Houston County, Texas, stands as a vital structure for both recreation and water supply purposes.


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Summary

Built in 1966 by Lloyd Engineers, this earth dam spans 1700 feet in length and reaches a height of 51 feet, holding a maximum storage capacity of 27,000 acre-feet. The dam overlooks Little Elkhart Creek and boasts a surface area of 1282 acres, providing a serene backdrop for outdoor enthusiasts.

Maintained by the Texas Commission on Environmental Quality (TCEQ), the dam's spillway, with a width of 507 feet, ensures controlled water discharge during peak periods. The dam's condition was last assessed in 2014, receiving a fair rating. With a moderate risk assessment score of 3, the dam's risk management measures are continuously monitored to uphold safety standards. Despite being uncontrolled, the two outlet gates and two valves aid in regulating water flow, contributing to the dam's efficient operation.

This iconic structure not only stands as a testament to engineering prowess but also serves as a hub for recreational activities in the region. With its rich history and strategic location, Houston County Lake Dam continues to play a crucial role in water resource management and climate resilience efforts in Texas.

Year Completed

1966

Dam Length

1700

Dam Height

51

River Or Stream

LITTLE ELKHART CREEK

Primary Dam Type

Earth

Surface Area

1282

Hydraulic Height

51

Drainage Area

44

Nid Storage

27000

Structural Height

63

Outlet Gates

Uncontrolled - 2, Valve - 2

Hazard Potential

Not Available

Foundations

Soil

Nid Height

63
       
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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.