Summary
Built in 1954, this earth dam stands at a structural height of 20.4 feet and serves the primary purpose of water storage. With a normal storage capacity of 45 acre-feet and a maximum storage of 55 acre-feet, Cortner covers a surface area of 6 acres and drains an area of 0.2 square miles.
While Cortner has a low hazard potential, its risk assessment is rated as moderate. The dam features an uncontrolled spillway and has not been inspected since May 2017, with an inspection frequency of 5 years. Despite its moderate risk, Cortner is not currently regulated, permitted, or inspected by the state, indicating potential vulnerabilities in terms of safety and maintenance. For water resource and climate enthusiasts, Cortner presents an intriguing case study of a privately owned dam with notable characteristics and risk factors that warrant further consideration and evaluation.
Year Completed |
1954 |
Dam Length |
468 |
River Or Stream |
THOMPSON CREEK |
Primary Dam Type |
Earth |
Surface Area |
6 |
Hydraulic Height |
18.9 |
Drainage Area |
0.2 |
Nid Storage |
55 |
Structural Height |
20.4 |
Outlet Gates |
None |
Hazard Potential |
Low |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Wartrace Creek Below County Road At Wartrace
|
153cfs |
Duck River At Shelbyville
|
178cfs |
Duck River Near Shelbyville
|
2060cfs |
Duck River Below Manchester
|
398cfs |
Fall Creek Near Deason
|
0cfs |
Bradley Creek Nr Prairie Plains
|
95cfs |
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.
Cortner
Normandy Dam Road Coffee County