Miller Lake Dam Reservoir Report
Last Updated: December 5, 2025
Miller Lake Dam, located in Smith County, Texas, was completed in 1959 and is owned privately.
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Summary
The dam, designed by USDA NRCS, serves as a key structure on TR-ROCK CREEK with a primary purpose of "Other." Standing at a height of 18 feet, the dam has a storage capacity of 95 acre-feet, with a normal storage of 60 acre-feet, covering a surface area of 10 acres.
Although the dam does not have a spillway, it is equipped with one outlet gate. Despite being classified as "Not Rated" in terms of condition assessment, with a high risk level of 2, the dam has not been inspected recently. With no state regulations or enforcement in place, the responsibility for inspection and maintenance falls on the private owner. The presence of the dam not only ensures water resource management but also highlights the importance of regular maintenance and inspection to mitigate potential hazards.
Year Completed |
1959 |
Dam Height |
18 |
River Or Stream |
TR-ROCK CREEK |
Primary Dam Type |
Earth |
Surface Area |
10 |
Hydraulic Height |
18 |
Nid Storage |
95 |
Structural Height |
18 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Sabine Rv Nr Mineola
|
64cfs |
Lake Fork Ck Nr Quitman
|
17cfs |
Sabine Rv Nr Hawkins
|
208cfs |
Big Sandy Ck Nr Big Sandy
|
91cfs |
Sabine Rv Nr Wills Point
|
7cfs |
Sabine Rv Nr Gladewater
|
437cfs |
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 Lake Dam