Pine Ridge Lake Dam Reservoir Report

Last Updated: December 5, 2025

Pine Ridge Lake Dam, located in Anderson, Texas, serves multiple purposes including fire protection, stock, and small fish pond.


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Summary

Completed in 1994, this earth dam stands at a height of 55 feet and spans a length of 1170 feet. It has a maximum storage capacity of 2688 acre-feet and covers a surface area of 135 acres, with a spillway width of 100 feet and a maximum discharge capacity of 2800 cubic feet per second.

Managed by a private owner and regulated by the Texas Commission on Environmental Quality (TCEQ), Pine Ridge Lake Dam is inspected, permitted, and enforced by the state. The dam's hazard potential is deemed not available, with a moderate risk assessment rating of 3. While the condition assessment is not rated, the dam's emergency action plan (EAP) status and risk management measures are also currently not available. The dam's design by Velvin & Weeks showcases a buttress core type and uncontrolled outlet gates.

Water resource and climate enthusiasts would find Pine Ridge Lake Dam a fascinating structure due to its multifunctional purposes, design features, and regulatory oversight. Situated on Walnut Creek and managed by a private entity, this dam plays a crucial role in providing fire protection, stock water, and fish pond support for the local area. With its moderate risk assessment and state-regulated status, Pine Ridge Lake Dam represents an important component of the water infrastructure in Anderson, Texas.

Year Completed

1994

Dam Length

1170

Dam Height

45

River Or Stream

WALNUT CREEK

Primary Dam Type

Earth

Surface Area

135

Hydraulic Height

45

Drainage Area

2.97

Nid Storage

2688

Structural Height

55

Outlet Gates

Uncontrolled - 2

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

55
       
Seasonal Comparison

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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.