Williams Dam 2 Reservoir Report
Nearby: Williams Dam 3 Williams Dam
Last Updated: December 6, 2025
Williams Dam 2, located in Campbellton, Texas, along the Oak Hollow River, was completed in 1968 by the USDA NRCS.
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Summary
This privately-owned earth dam stands at a height of 11 feet and serves multiple purposes including recreation, fire protection, and stock or small fish pond. With a storage capacity of 70 acre-feet and a maximum discharge of 880 cubic feet per second, the dam contributes to the conservation of water resources in the region.
Despite its low hazard potential and moderate risk assessment, Williams Dam 2 lacks detailed condition assessment data and emergency action plans. The dam features an uncontrolled spillway and outlet gates, with a spillway width of 107 feet. The structure is primarily constructed with stone core and soil foundation, ensuring its durability and resilience. The dam's association with the Natural Resources Conservation Service underscores its commitment to sustainable water management practices.
Water resource and climate enthusiasts will appreciate the significance of Williams Dam 2 in providing essential water storage for recreational activities and wildlife conservation in Atascosa County, Texas. The dam's location and design reflect a balance between environmental protection and community needs. As efforts to enhance dam safety and emergency preparedness continue, Williams Dam 2 remains a vital component of the local water infrastructure, supporting the region's water supply and ecosystem health.
Year Completed |
1968 |
Dam Length |
998 |
Dam Height |
11 |
River Or Stream |
Oak Hollow |
Primary Dam Type |
Earth |
Hydraulic Height |
11 |
Drainage Area |
1.09 |
Nid Storage |
70 |
Structural Height |
12 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
12 |
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.
Williams Dam 2