Lost Pine Lake Dam Reservoir Report

Last Updated: December 5, 2025

Lost Pine Lake Dam, located in Tyler, Texas, is a privately owned earth dam built in 1929 for recreation purposes along the TR-Indian Creek.


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Summary

Standing at a height of 23 feet and with a length of 600 feet, the dam provides a storage capacity of 568 acre-feet and covers a surface area of 36 acres. The dam's spillway, with a width of 103 feet, is uncontrolled, allowing for a maximum discharge of 2 cubic feet per second.

Despite its age, Lost Pine Lake Dam has been regularly inspected by the Texas Commission on Environmental Quality (TCEQ) with the last assessment in 2015 rating its condition as fair. The dam's hazard potential is not available, but it is considered to have moderate risk management measures in place. The dam has three outlet gates, two of which are uncontrolled and one valve, ensuring proper water flow and management. In case of emergencies, the dam's emergency action plan status and communication protocols are not explicitly stated, but it meets regulatory guidelines.

Lost Pine Lake Dam continues to be a popular spot for outdoor enthusiasts seeking recreational activities in Smith County, Texas. With its picturesque setting and historical significance, the dam serves as a reminder of the importance of proper dam maintenance and the preservation of water resources in the face of changing climates.

Year Completed

1929

Dam Length

600

Dam Height

23

River Or Stream

TR-INDIAN CREEK

Primary Dam Type

Earth

Surface Area

36

Hydraulic Height

23

Drainage Area

2.95

Nid Storage

568

Structural Height

23

Outlet Gates

Uncontrolled - 2, Valve - 1

Hazard Potential

Not Available

Foundations

Rock, Soil

Nid Height

23
       
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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.