Haynes Lake Dam Reservoir Report

Last Updated: December 5, 2025

Haynes Lake Dam, located in Trinity County, Texas, is a privately-owned structure built in 1955 for purposes other than flood control or water storage.


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Summary

This earth dam, with a height of 13 feet and a length of 580 feet, is situated on the TR-Brushy Creek. It has a storage capacity of 120 acre-feet, with a normal storage level of 43 acre-feet.

Despite its relatively small size, Haynes Lake Dam is considered to have a high risk potential, with a Hazard Potential rating of "Not Available" and a Risk Assessment of 2 (High). The dam does not have a spillway and is equipped with one outlet gate. While it is not regulated by the state and has not been rated for its condition, the dam is subject to state permitting and inspection requirements. The surrounding area does not have designated inundation maps or an Emergency Action Plan in place.

For water resource and climate enthusiasts, Haynes Lake Dam presents an intriguing case study in dam management and safety. With its unique design characteristics and high-risk assessment, this privately-owned structure serves as a reminder of the importance of regular inspection, maintenance, and emergency preparedness for dams of all sizes. Its location on Brushy Creek adds to its environmental significance, making it a focal point for those interested in the intersection of water resources and infrastructure development.

Year Completed

1955

Dam Length

580

Dam Height

13

River Or Stream

TR-BRUSHY CREEK

Primary Dam Type

Earth

Surface Area

12

Hydraulic Height

13

Nid Storage

120

Structural Height

13

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

13
       
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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.