Lesley Lake Dam Reservoir Report
Last Updated: December 5, 2025
Lesley Lake Dam in Erath, Texas, stands as a testament to sustainable water resource management with its primary purpose being irrigation.
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Summary
Built in 1965, this private dam designed by Robert T Childress stands at a height of 31 feet and spans a length of 1280 feet, holding a storage capacity of 672 acre-feet. The dam regulates the flow of the TR-LALLAH BRANCH stream and features an uncontrolled spillway with a width of 190 feet.
Despite its age, Lesley Lake Dam remains in a moderate risk category and has not been rated for its condition, highlighting the need for regular inspections and risk management measures. The dam is state-regulated by the Texas Commission on Environmental Quality (TCEQ) and falls under state jurisdiction for permitting, inspection, and enforcement. With its strategic location and efficient design, Lesley Lake Dam serves as a vital resource for irrigation in the region, showcasing the importance of sustainable water management practices in the face of climate change challenges.
Year Completed |
1965 |
Dam Length |
1280 |
Dam Height |
31 |
River Or Stream |
TR-LALLAH BRANCH |
Primary Dam Type |
Earth |
Surface Area |
55 |
Hydraulic Height |
31 |
Nid Storage |
672 |
Structural Height |
31 |
Outlet Gates |
Uncontrolled - 2 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
31 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Lesley Lake Dam