Cobb Reservoir Report
Nearby: Country Lake Estates Veirs
Last Updated: December 15, 2025
Cobb is a private dam located in Brownsville, Tennessee, along Tribbucks Creek.
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Summary
Built in 1962, this earth dam stands at a structural height of 17 feet with a hydraulic height of 14.2 feet. With a normal storage capacity of 40 acre-feet and a maximum storage of 60 acre-feet, Cobb covers a surface area of 7 acres and serves a drainage area of 0.04 square miles.
The dam, categorized as having a "High" hazard potential, has not been rated for its current condition. Despite being unregulated by the state and lacking inspection, permitting, and enforcement, Cobb remains a vital structure for water resource management in the area. With no associated structures and no outlet gates, this dam presents unique challenges and opportunities for potential risk management and emergency preparedness.
Even though Cobb has not been updated or assessed in recent years, its risk level is considered moderate. With its uncontrolled spillway type and a history of having no significant modifications or inspections since 2018, the dam poses potential risks that need to be addressed. As water resource and climate enthusiasts, understanding and monitoring the condition and management of structures like Cobb is crucial for ensuring the safety and sustainability of water resources in the region.
Year Completed |
1962 |
Dam Length |
885 |
River Or Stream |
TRIBBUCKS CREEK |
Primary Dam Type |
Earth |
Surface Area |
7 |
Hydraulic Height |
14.2 |
Drainage Area |
0.04 |
Nid Storage |
60 |
Structural Height |
17 |
Outlet Gates |
None |
Hazard Potential |
High |
Nid Height |
17 |
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.
Cobb