Old Tresquilla Tank Dam Reservoir Report
Nearby: Big Tank Dam Rogers High Lonesome Dam
Last Updated: December 6, 2025
Located in Dimmit, Texas, the Old Tresquilla Tank Dam stands as a testament to the importance of water resource management in the region.
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Summary
Completed in 1974, this private-owned earth dam on Bonita Creek serves a primary purpose that goes beyond conventional water storage. With a height of 25 feet and a length of 2300 feet, the dam has a normal storage capacity of 457 acre-feet and a maximum storage of 620 acre-feet, making it a crucial asset for maintaining water supply in the area.
Under the jurisdiction of the Texas Commission on Environmental Quality (TCEQ), the Old Tresquilla Tank Dam is subject to state regulation, inspection, and enforcement to ensure its structural integrity and safety. Despite not having a spillway, the dam's risk assessment categorizes it as having a high hazard potential, emphasizing the need for effective risk management measures. With no recent condition assessment available, the dam's current condition remains unrated, highlighting the importance of continued monitoring and maintenance to mitigate any potential risks associated with its operations.
In a region where water resources and climate are of paramount importance, the Old Tresquilla Tank Dam serves as a critical infrastructure for water supply and management. With a rich history dating back to its completion in 1974, this earth dam on Bonita Creek not only provides essential water storage but also underscores the need for ongoing regulatory oversight and risk management to ensure the safety and sustainability of water resources in Dimmit, Texas.
Year Completed |
1974 |
Dam Length |
2300 |
Dam Height |
25 |
River Or Stream |
BONITA CREEK |
Primary Dam Type |
Earth |
Surface Area |
51 |
Hydraulic Height |
25 |
Nid Storage |
620 |
Structural Height |
25 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Nueces Rv Nr Asherton
|
0cfs |
Nueces Rv At Cotulla
|
0cfs |
Frio Rv Nr Derby
|
0cfs |
Nueces Rv Bl Uvalde
|
1cfs |
Zacate Ck At Laredo
|
0cfs |
Leona Rv Nr Uvalde
|
0cfs |
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.
Old Tresquilla Tank Dam