Goldthwaite Water Supply Reservoir Reservoir Report
Nearby: Miller Dam Mcdaniel Lake Dam
Last Updated: December 5, 2025
Goldthwaite Water Supply Reservoir, located in Mills County, Texas, was completed in 1960 and is owned by the local government.
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Summary
The primary purpose of this earth dam structure is to provide water supply, with a maximum storage capacity of 115 acre-feet. The reservoir is regulated by the Texas Commission on Environmental Quality (TCEQ) and undergoes regular inspections, maintenance, and enforcement to ensure its safety and functionality.
With a height of 20 feet and a length of 6345 feet, Goldthwaite Water Supply Reservoir sits off the Colorado River and does not have a spillway. Despite being classified as high risk (2), the condition of the dam has not been rated. It is important to note that the emergency action plan (EAP) for the reservoir is not available, indicating potential gaps in preparedness for any unforeseen events. While the dam's hazard potential is not specified, its critical role in providing water supply to the region underscores the importance of ongoing risk management measures.
Overall, Goldthwaite Water Supply Reservoir serves as a crucial water resource for the community, highlighting the intersection between water supply infrastructure and climate resilience. As climate change impacts continue to affect water availability and quality, ensuring the safety and efficiency of such reservoirs becomes increasingly vital. The data provided offers insights into the structure's design, regulatory oversight, and risk assessment, pointing towards the need for continued monitoring and maintenance to safeguard this essential resource for future generations.
Year Completed |
1960 |
Dam Length |
6345 |
Dam Height |
20 |
River Or Stream |
OFF CH-COLORADO RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Nid Storage |
115 |
Structural Height |
20 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Pecan Bayou Nr Mullin
|
2cfs |
Colorado Rv Nr San Saba
|
211cfs |
San Saba Rv At San Saba
|
140cfs |
Leon Rv Nr Hasse
|
2cfs |
Lampasas Rv Nr Kempner
|
33cfs |
Leon Rv Nr Hamilton
|
4cfs |
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.
Goldthwaite Water Supply Reservoir