Mitchell County Reservoir Dam Reservoir Report

Last Updated: December 5, 2025

The Mitchell County Reservoir Dam, located in Robert Lee, Texas, is a vital structure designed by FREESE AND NICHOLS and completed in 1991.


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Summary

This dam is primarily used for purposes such as tailings and other activities, with a maximum storage capacity of 50,241 acre-feet. The dam stands at a height of 70 feet, with a structural height of 93 feet, and spans a length of 4,850 feet along the TR-BEALS CREEK.

The dam boasts a fair condition assessment as of April 2021, with a moderate risk rating of 3. It features an uncontrolled spillway type with a width of 205 feet and is regulated by the Texas Commission on Environmental Quality (TCEQ). The reservoir serves as a crucial water resource for Mitchell County, offering a normal storage capacity of 32,000 acre-feet and covering a surface area of 1,603 acres. Despite its fair condition, the dam has not been assessed for hazard potential, and its emergency action plan status is currently not available.

With a history of inspections and regulatory oversight, the Mitchell County Reservoir Dam plays a significant role in water resource management in the region. Its presence ensures water security and supports various activities, highlighting the importance of maintaining and monitoring such critical infrastructure in the face of changing climate conditions.

Year Completed

1991

Dam Length

4850

Dam Height

70

River Or Stream

TR-BEALS CREEK

Primary Dam Type

Other

Surface Area

1603

Hydraulic Height

69

Drainage Area

15.7

Nid Storage

50241

Structural Height

93

Outlet Gates

Uncontrolled - 2

Hazard Potential

Not Available

Foundations

Soil

Nid Height

93
       
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.