Tumco Dam Di-12 Reservoir Report
Last Updated: December 26, 2025
Tumco Dam Di-12, located in Rusk, Texas, is a private earth dam completed in 1992 with a primary purpose of tailings containment.
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Summary
The dam, designed by TUMCO, stands at a height of 16 feet and spans 450 feet in length, providing a storage capacity of 92 acre-feet. Situated on TR-Mill Creek, the dam serves as a crucial infrastructure for water resource management in the area.
Despite being privately owned, Tumco Dam Di-12 falls under the jurisdiction of the state of Texas, with state permitting and inspection requirements in place. The dam has not been rated for its condition assessment, but it poses a high risk according to the hazard potential assessment. With no spillway and limited discharge capacity, the dam's risk management measures and emergency preparedness protocols are not clearly defined, highlighting the importance of regular monitoring and maintenance to mitigate potential hazards to the surrounding community and environment.
As a significant structure in the region's water resource infrastructure, Tumco Dam Di-12 underscores the critical role that private dams play in safeguarding against flooding and managing water resources. With its unique design features and operational considerations, the dam serves as a focal point for water resource and climate enthusiasts interested in understanding the complexities of dam management and the challenges posed by aging infrastructure in the face of changing climate patterns.
Year Completed |
1992 |
Dam Length |
450 |
Dam Height |
16 |
River Or Stream |
TR-MILL CREEK |
Primary Dam Type |
Earth |
Drainage Area |
0.18 |
Nid Storage |
92 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
16 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Rabbit Ck At Kilgore
|
15cfs |
Sabine Rv Bl Longview
|
251cfs |
Sabine Rv Abv Longview
|
210cfs |
Sabine Rv Nr Gladewater
|
226cfs |
Sabine Rv Nr Beckville
|
291cfs |
E Fk Angelina Rv Nr Cushing
|
29cfs |
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.
Tumco Dam Di-12
Martin Lk Nr Tatum