Goldthwaite Off-Chan Storage Res Dam Reservoir Report
Last Updated: December 5, 2025
Located in Mills County, Texas, the Goldthwaite Off-Chan Storage Reservoir Dam is a crucial water supply structure designed by Rady & Associates Inc.
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Summary
Completed in 1984, this earth dam stands at a height of 19 feet and has a storage capacity of 261 acre-feet, with a normal storage level of 200 acre-feet. The primary purpose of this dam is to provide water supply to the surrounding area, making it an essential infrastructure for the local government.
Managed by the Texas Commission on Environmental Quality (TCEQ), the Goldthwaite Off-Chan Storage Reservoir Dam is regulated, inspected, and enforced by state authorities to ensure its safety and functionality. Despite its high risk level, with a hazard potential of "Not Available" and a risk assessment of "High (2)", the dam has not been rated for its condition. With no spillway and minimal associated structures, this dam serves as a key component in the water management system of Mills County, Texas, under the oversight of the Fort Worth District of the US Army Corps of Engineers.
For water resource and climate enthusiasts, the Goldthwaite Off-Chan Storage Reservoir Dam presents a fascinating case study of a locally owned and operated water supply infrastructure in Texas. With its strategic location, design features, and regulatory oversight, this dam plays a crucial role in supporting the community's water needs while facing challenges related to its high-risk assessment. As efforts continue to maintain and monitor the dam's condition, it remains a vital asset for ensuring water security in the region and highlights the importance of sustainable water management practices in the face of changing climate conditions.
Year Completed |
1984 |
Dam Length |
3579 |
Dam Height |
19 |
River Or Stream |
OFF CH |
Primary Dam Type |
Earth |
Hydraulic Height |
19 |
Nid Storage |
261 |
Structural Height |
19 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
19 |
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 |
Leon Rv Nr Hamilton
|
4cfs |
Copperas Ck At Fm 2247 Nr Comanche
|
2cfs |
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 Off-Chan Storage Res Dam