Stewart Lake Dam Reservoir Report

Last Updated: December 5, 2025

Stewart Lake Dam, located in Montgomery, Texas, is a privately owned structure built in 1958 primarily for irrigation purposes.


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Summary

The dam stands at a height of 29 feet and has a maximum storage capacity of 518 acre-feet. It spans 1000 feet in length and is situated on Stewart Creek, with a maximum discharge capability of 2085 cubic feet per second.

The dam features an uncontrolled spillway and is equipped with three uncontrolled and one valve outlet gates. Despite being of Earth core type with Buttress foundations, the dam's condition assessment has not been rated, and its hazard potential is not available. The Texas Commission on Environmental Quality (TCEQ) regulates the dam, ensuring that it undergoes regular inspections and enforcement measures to maintain its structural integrity and minimize risk to the surrounding area.

For water resource and climate enthusiasts, Stewart Lake Dam serves as a significant structure within the Fort Worth District, providing essential water resources for irrigation and recreation purposes. With a moderate risk assessment level of 3, the dam's management and maintenance remain crucial to safeguarding its functionality and minimizing potential hazards.

Year Completed

1958

Dam Length

1000

Dam Height

29

River Or Stream

STEWART CREEK

Primary Dam Type

Earth

Surface Area

35

Hydraulic Height

21

Nid Storage

518

Structural Height

29

Outlet Gates

Uncontrolled - 3, Valve - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

29
       
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.