Jess Mcneel Lake No 3 Dam Reservoir Report
Last Updated: December 5, 2025
Jess Mcneel Lake No 3 Dam, located in McMullen County, Texas, was completed in 1968 and serves as a vital water supply infrastructure for the region.
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Summary
Standing at a height of 17 feet and a length of 1490 feet, this earth dam with a buttress core type has a maximum storage capacity of 488 acre-feet. Despite its high hazard potential rating, the dam's condition assessment is currently not rated, highlighting the need for regular inspections and maintenance to ensure its safety and functionality.
The primary purpose of Jess Mcneel Lake No 3 Dam is to provide water supply to the surrounding area, with a normal storage capacity of 92 acre-feet. The dam is situated on the TR-San Miguel Creek and is under the jurisdiction of the state of Texas, with state permitting and inspection processes in place. While the dam does not have a spillway, it is equipped with one outlet gate, indicating the importance of proper water management and control to mitigate any potential risks associated with high discharge events and flooding.
As a privately owned structure, Jess Mcneel Lake No 3 Dam plays a crucial role in ensuring water security for the local community. With a risk assessment indicating a high risk level, it is essential for stakeholders to prioritize risk management measures and emergency preparedness to safeguard the dam and prevent any potential disasters. This dam serves as a reminder of the critical role that water resource management plays in addressing climate challenges and ensuring sustainable water access for future generations.
Year Completed |
1968 |
Dam Length |
1490 |
Dam Height |
17 |
River Or Stream |
TR-SAN MIGUEL CREEK |
Primary Dam Type |
Earth |
Surface Area |
23 |
Hydraulic Height |
17 |
Nid Storage |
488 |
Structural Height |
17 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
17 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
San Miguel Ck Nr Tilden
|
0cfs |
Frio Rv At Tilden
|
0cfs |
Frio Rv Nr Derby
|
0cfs |
Nueces Rv Nr Tilden
|
0cfs |
Atascosa Rv At Whitsett
|
0cfs |
Atascosa Rv Nr Mccoy
|
1cfs |
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.
Jess Mcneel Lake No 3 Dam