Peacock Site 1a Tailings Reservoir Dm Reservoir Report

Last Updated: December 5, 2025

Peacock Site 1a Tailings Reservoir Dm, located in Lone Star, Texas, is a privately owned Earth dam with a height of 111 feet and a length of 2030 feet.


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Summary

Constructed in 1983 by FREESE AND NICHOLS, this reservoir serves a primary purpose of "Other" and has a storage capacity of 13,336 acre-feet. The dam is regulated by the TCEQ and undergoes regular inspections to ensure its structural integrity.

The dam's spillway, with a width of 208 feet, is uncontrolled and has a maximum discharge capacity of 2540 cubic feet per second. In 1989, the dam underwent structural modifications to enhance its safety measures. The condition assessment conducted in 2015 rated the dam's condition as "Fair" with a moderate risk level. Although no hazard potential is available, the dam is deemed to meet guidelines for emergency action plans, though the last review of the plan was in 2010.

Overall, Peacock Site 1a Tailings Reservoir Dm plays a crucial role in water resource management in Morris County, Texas, and showcases the collaboration between private ownership and state regulatory agencies in ensuring the safety and effectiveness of water infrastructure projects in the region. With a focus on continued monitoring and risk management, this dam stands as a testament to the importance of sustainable water resource development in the face of changing climate patterns.

Years Modified

1989 - Structural

Year Completed

1983

Dam Length

2030

Dam Height

111

River Or Stream

TR-PEACOCK CREEK

Primary Dam Type

Earth

Hydraulic Height

111

Nid Storage

13336

Structural Height

121

Outlet Gates

Uncontrolled - 2

Hazard Potential

Not Available

Foundations

Soil

Nid Height

121
       
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.