Winn Exploration Dam No 2 Reservoir Report
Last Updated: December 6, 2025
Located in Maverick County, Texas, Winn Exploration Dam No 2 is a privately owned earth dam completed in 1960 with a primary purpose of providing fire protection, stock watering, and serving as a small fish pond.
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Summary
This dam on the TR-ROSITA CREEK has a structural height of 24 feet and a length of 1800 feet, with a storage capacity of 1290 acre-feet. It also serves for recreation and water supply purposes, covering a surface area of 96 acres and having a drainage area of 2.3 square miles.
Managed by the Texas Commission on Environmental Quality (TCEQ), Winn Exploration Dam No 2 has not been rated for its condition assessment but is classified as having a moderate risk level. The dam features an uncontrolled spillway with a width of 77 feet and three uncontrolled outlet gates. Despite not having an Emergency Action Plan (EAP) prepared or updated, the dam has not been identified as having a hazard potential. The last inspection of the dam was conducted in August 1975, and it continues to be regulated, permitted, inspected, and enforced by the state of Texas.
Water resource and climate enthusiasts will find Winn Exploration Dam No 2 to be an interesting structure with its historical significance and multi-purpose functionality. The dam, situated within the Fort Worth District, remains an essential part of the local water management system and serves as a vital resource for fire protection, stock watering, and recreational activities. Its presence on the TR-ROSITA CREEK not only contributes to water supply and conservation efforts but also highlights the importance of maintaining and managing such infrastructure to ensure safety and sustainability in the face of changing climate conditions.
Year Completed |
1960 |
Dam Length |
1800 |
Dam Height |
24 |
River Or Stream |
TR-ROSITA CREEK |
Primary Dam Type |
Earth |
Surface Area |
96 |
Hydraulic Height |
24 |
Drainage Area |
2.3 |
Nid Storage |
1290 |
Structural Height |
24 |
Outlet Gates |
Uncontrolled - 3 |
Hazard Potential |
Not Available |
Foundations |
Rock |
Nid Height |
24 |
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.
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