Lyndsay Lake Dam Reservoir Report
Nearby: Lawrence Pickard Dam Reid Gss
Last Updated: December 5, 2025
Located in Fannin, Texas, the Lyndsay Lake Dam stands as a crucial piece of infrastructure for water supply in the region.
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Summary
Completed in 1982, this earth dam with a height of 32 feet serves as a vital source of water storage with a capacity of 338 acre-feet. The dam is regulated by the Texas Commission on Environmental Quality (TCEQ) and undergoes regular inspections, enforcement, and permitting to ensure its safety and functionality.
Managed by the local government, Lyndsay Lake Dam plays a pivotal role in providing water to the community, especially during times of drought or water scarcity. With a primary purpose of water supply, the dam serves as a key component in the management of the North Sulphur River. Despite its high hazard potential and risk assessment rating of 2 (high), the dam's condition is currently not rated, highlighting the need for ongoing monitoring and risk management measures.
Designed by Hayter Engineering Inc, the Lyndsay Lake Dam is an essential structure for water resource and climate enthusiasts to study and understand. With its strategic location, significant storage capacity, and state-regulated operations, the dam serves as a critical asset in ensuring reliable water supply for the residents of Fannin, Texas.
Year Completed |
1982 |
Dam Length |
1220 |
Dam Height |
32 |
River Or Stream |
TR-NORTH SULPHUR RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
32 |
Nid Storage |
338 |
Structural Height |
36 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
36 |
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.
Lyndsay Lake Dam