Miller Dam Reservoir Report
Nearby: Morton Lake Dam Montgomery Lake Dam
Last Updated: December 20, 2025
Miller Dam, located in La Salle, Texas, on the TR-FRIO River, is a privately owned earth dam primarily used for fire protection, stock, and as a small fish pond.
°F
°F
mph
Wind
%
Humidity
Summary
Constructed in 1955, this dam has a height of 23 feet and a length of 425 feet, providing a storage capacity of 368 acre-feet. Despite not having a spillway, the dam serves as a crucial water resource for the local community, especially during times of drought.
Although not regulated by the state, Miller Dam is inspected and permitted by the Texas authorities, ensuring its safety and functionality. With a hazard potential that is not available and a high risk assessment rating of 2, it is essential for the owners to implement risk management measures to mitigate any potential dangers. While the condition assessment is not rated, regular inspections and maintenance are necessary to uphold the integrity of the dam and protect the surrounding area from flooding.
In the absence of emergency action plans and inundation maps, there is room for improvement in emergency preparedness and response. With no outlet gates and limited data on associated structures, it is crucial for the owners to stay vigilant and proactive in monitoring and maintaining Miller Dam to ensure the safety and sustainability of this vital water resource for the community.
Year Completed |
1955 |
Dam Length |
425 |
Dam Height |
23 |
River Or Stream |
TR-FRIO RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
23 |
Nid Storage |
368 |
Structural Height |
23 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
23 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Frio Rv At Tilden
|
1cfs |
San Miguel Ck Nr Tilden
|
0cfs |
Nueces Rv Nr Tilden
|
0cfs |
Nueces Rv At Cotulla
|
0cfs |
Frio Rv Nr Derby
|
0cfs |
San Casimiro Ck Nr Freer
|
0cfs |
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.
Miller Dam