Summary
Built in 1985, this earth dam stands at a structural height of 22 feet and has a hydraulic height of 6 feet, with a length of 490 feet. It is situated on the Cotton Grove Creek and serves the purpose of water storage, with a capacity of 198 acre-feet for flood control and irrigation. The dam has a significant hazard potential but is currently assessed to be in satisfactory condition, with regular inspections conducted by the Tennessee Safe Dams Program.
The dam does not have outlet gates and features an uncontrolled spillway type. Its surface area covers 2.5 acres, with a drainage area of 0.36 square miles. The dam's risk assessment deems it to have a moderate risk level, with a risk management plan yet to be specified. Despite its hazard potential, the dam's condition is reported as satisfactory as of the last inspection in November 2020. Water resource and climate enthusiasts interested in the management and regulation of dams in Tennessee may find Cotton Grove to be a compelling case study due to its unique characteristics and risk profile.
Year Completed |
1985 |
Dam Length |
490 |
River Or Stream |
COTTON GROVE CREEK |
Primary Dam Type |
Earth |
Surface Area |
2.5 |
Hydraulic Height |
6 |
Drainage Area |
0.36 |
Nid Storage |
198 |
Structural Height |
22 |
Outlet Gates |
None |
Hazard Potential |
Significant |
Nid Height |
22 |
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.
Cotton Grove