Lucas Lake Dam Reservoir Report

Last Updated: December 5, 2025

Lucas Lake Dam, located in Nacogdoches, Texas, was completed in 1943 and serves as a vital water supply source for the area.


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Summary

The dam is classified as an earth dam with a buttress core type, standing at a height of 18 feet. It has a storage capacity of 130 acre-feet, with a normal storage level of 100 acre-feet. The dam's primary purpose is for water supply, making it a crucial infrastructure for the community.

Although the dam has not been rated for its condition, it poses a high risk with a hazard potential that is not available. Despite its private ownership, the state of Texas regulates and inspects the dam regularly to ensure its safety and functionality. The dam does not have a spillway and is equipped with one outlet gate. With its location on the TR-INDIAN CREEK, Lucas Lake Dam plays a significant role in managing water resources in the region and mitigating the impacts of climate change on water availability.

Year Completed

1943

Dam Height

18

River Or Stream

TR-INDIAN CREEK

Primary Dam Type

Earth

Surface Area

18

Hydraulic Height

18

Nid Storage

130

Structural Height

18

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

18
       
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.