Harrington-Caviness Heir Mr 51 Dam Reservoir Report
Last Updated: December 5, 2025
Harrington-Caviness Heir Mr 51 Dam, located in Lamar County, Texas, stands as a vital structure designed by USDA NRCS in 1981 for Flood Risk Reduction along TR-Morrison Creek.
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Summary
This earth dam of buttress core type reaches a height of 24 feet and spans 900 feet, providing a maximum storage capacity of 137 acre-feet. Despite being unregulated by the state, it undergoes regular inspections and permitting to ensure operational safety. The dam serves as a critical asset in managing flood risks in the region, highlighting its importance in water resource management.
With a high hazard potential and risk assessment score of 2, the Harrington-Caviness Heir Mr 51 Dam is recognized as a key component in the region's flood control infrastructure. Despite its primary purpose of Flood Risk Reduction, the dam's condition remains unrated, with no recent inspection data available. Even though it lacks a spillway, the dam's presence plays a crucial role in safeguarding the surrounding areas from potential inundation during extreme weather events. As a privately owned structure, it underscores the collaborative efforts between private entities and government agencies in ensuring effective water resource management.
As water resource enthusiasts, the Harrington-Caviness Heir Mr 51 Dam presents an intriguing case study in the intersection of infrastructure development, climate resilience, and emergency preparedness. With its strategic location along TR-Morrison Creek and its significant storage capacity, the dam serves as a vital tool in mitigating flood risks and protecting local communities. The ongoing inspections and adherence to operational guidelines underscore the commitment to maintaining the dam's structural integrity and functionality, highlighting the importance of proactive risk management in safeguarding water resources in Texas.
Year Completed |
1981 |
Dam Length |
900 |
Dam Height |
24 |
River Or Stream |
TR-MORRISON CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
24 |
Drainage Area |
0.73 |
Nid Storage |
137 |
Structural Height |
24 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
24 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Harrington-Caviness Heir Mr 51 Dam