Bigmaverick Lake Dam Reservoir Report
Last Updated: December 12, 2025
Bigmaverick Lake Dam, located in Zavala County, Texas, is a private earth dam built in 1958 with a primary purpose of fire protection and creating a small fish pond.
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Summary
The dam stands at a height of 15 feet and stretches 1,050 feet in length, holding a maximum storage capacity of 210 acre-feet. Despite its modest size, the dam poses a high risk potential, with no spillway and a lack of detailed hazard assessment.
The dam, situated on Maverick Creek, does not fall under state jurisdiction or regulation, although it is subject to state permitting and inspection. With no designated enforcement agency, the responsibility for the dam's maintenance and safety falls on its private owner. The risk associated with the dam is deemed high, indicating a need for proper risk management measures to ensure the safety of the surrounding area and water resources. For water resource and climate enthusiasts, Bigmaverick Lake Dam presents an intriguing case study in the management of small-scale dams and their potential impact on the environment.
Year Completed |
1958 |
Dam Length |
1050 |
Dam Height |
15 |
River Or Stream |
MAVERICK CREEK |
Primary Dam Type |
Earth |
Surface Area |
18 |
Hydraulic Height |
15 |
Nid Storage |
210 |
Structural Height |
15 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
15 |
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.
Bigmaverick Lake Dam