Joe Hargrove Dam Reservoir Report
Last Updated: December 15, 2025
Joe Hargrove Dam, located in Zavala, Texas, is a privately owned structure that was completed in 1958 by USDA NRCS.
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Summary
This Earth-type dam, with a height of 22 feet and a length of 1340 feet, serves multiple purposes such as fire protection, stock, fish pond, and recreation. The primary purpose of the dam is to create a fish and wildlife pond, providing a habitat for various species in the area.
The dam has a storage capacity of 678 acre-feet and covers a surface area of 77 acres, with a drainage area of 4.3 square miles. Despite not having a spillway, the dam is regulated by the Texas Commission on Environmental Quality (TCEQ) and undergoes regular inspections to ensure its safety and compliance with state regulations. With a high risk assessment rating of 2, measures for risk management are in place to mitigate any potential hazards associated with the dam.
Overall, Joe Hargrove Dam plays a critical role in water resource management and conservation in the region, providing essential benefits for wildlife, recreation, and local communities. Its strategic location on the TR-Frio River highlights its significance in maintaining the ecological balance and supporting the diverse aquatic ecosystem in the area.
Year Completed |
1958 |
Dam Length |
1340 |
Dam Height |
22 |
River Or Stream |
TR-FRIO RIVER |
Primary Dam Type |
Earth |
Surface Area |
77 |
Drainage Area |
4.3 |
Nid Storage |
678 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
22 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Leona Rv Nr Uvalde
|
0cfs |
Frio Rv Bl Dry Frio Rv Nr Uvalde
|
0cfs |
Nueces Rv Bl Uvalde
|
1cfs |
Sabinal Rv At Sabinal
|
0cfs |
Frio Rv At Concan
|
26cfs |
Dry Frio Rv Nr Reagan Wells
|
30cfs |
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.
Joe Hargrove Dam