House Lake Dam Reservoir Report

Last Updated: December 5, 2025

House Lake Dam, located in McMullen County, Texas, was completed in 1964 and serves as a private water supply structure along the TR-Green Branch river.


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Summary

The dam stands at a height of 15 feet with a length of 650 feet, providing a storage capacity of 150 acre-feet. While the primary purpose of House Lake Dam is water supply, it also serves as a critical infrastructure for the local community.

Despite being a privately owned structure, House Lake Dam falls under the jurisdiction of the state of Texas for permitting and inspections. The dam is primarily made of earth with a buttress core type, and does not have a spillway. With a high risk potential rating, the condition assessment of the dam is currently not rated, highlighting the need for regular monitoring and maintenance to ensure the safety and functionality of this important water resource infrastructure. Climate and water resource enthusiasts can appreciate the importance of House Lake Dam in providing essential water supply in the region while understanding the ongoing challenges in managing and maintaining such critical infrastructure.

Year Completed

1964

Dam Length

650

Dam Height

15

River Or Stream

TR-GREEN BRANCH

Primary Dam Type

Earth

Surface Area

13

Hydraulic Height

15

Nid Storage

150

Structural Height

15

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

15
       
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.