Eagle Mountain Dam Reservoir Report

Last Updated: December 5, 2025

Eagle Mountain Dam, located in Fort Worth, Texas, stands as a testament to engineering excellence and resource management.


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Summary

Built in 1932 by HAWLEY AND FREESE AND NICHOLS, this earth dam on the West Fork Trinity River serves primarily for irrigation purposes. With a height of 85 feet and a length of 4400 feet, the dam has a storage capacity of 680,335 acre-feet, making it a crucial water source for the region.

Managed by the Texas Commission on Environmental Quality (TCEQ), Eagle Mountain Dam has undergone regular inspections and maintenance to ensure its structural integrity and operational efficiency. The dam boasts a satisfactory condition assessment as of April 2021, indicating its robustness in safeguarding water resources and mitigating flood risks. With a spillway width of 2800 feet and a maximum discharge capacity of 125,100 cubic feet per second, the dam is well-equipped to manage potential excess water flow.

Eagle Mountain Dam's strategic location, innovative design, and efficient water management practices make it a vital asset for water supply and irrigation in Tarrant County, Texas. As climate change continues to impact water resources, the dam serves as a critical infrastructure for ensuring water security and sustainability in the region. Its continued regulatory oversight and commitment to safety underscore its importance in safeguarding both the environment and the local community's water needs.

Year Completed

1932

Dam Length

4400

Dam Height

85

River Or Stream

WEST FORK TRINITY RIVER

Primary Dam Type

Earth

Surface Area

6160

Hydraulic Height

85

Drainage Area

1970

Nid Storage

680335

Structural Height

85

Outlet Gates

Other Controlled - 2, Uncontrolled - 1, Valve - 2

Hazard Potential

Not Available

Foundations

Soil

Nid Height

85
       
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.