Summary
Completed in 1971, this dam stands at a hydraulic height of 20 feet and a structural height of 23 feet, with a length of 393 feet. It has a normal storage capacity of 80 acre-feet and a maximum storage of 111 acre-feet, covering a surface area of 10 acres and draining a 0.1 square mile area.
Although Mann is classified as having a low hazard potential and a moderate risk assessment, it has not been rated for its condition assessment. The dam does not have an Emergency Action Plan prepared, and the last inspection was conducted in July 2016 with a frequency of every 5 years. Upheld by the Memphis District, Mann's spillway type is uncontrolled and it has no outlet gates. Despite its low hazard potential, Mann serves as an essential structure for water resource management in the region.
For water resource and climate enthusiasts, Mann provides a unique case study for understanding the infrastructure and management of earth dams in Tennessee. With its moderate risk assessment and lack of a current condition rating, Mann exemplifies the ongoing need for regular inspections and maintenance of critical water structures. Its location on Price Branch highlights its significance in managing water flow and storage in the area, making it a valuable asset for studying and implementing sustainable water resource practices in the region.
Year Completed |
1971 |
Dam Length |
393 |
River Or Stream |
PRICE BRANCH |
Primary Dam Type |
Earth |
Surface Area |
10 |
Hydraulic Height |
20 |
Drainage Area |
0.1 |
Nid Storage |
111 |
Structural Height |
23 |
Outlet Gates |
None |
Hazard Potential |
Low |
Nid Height |
23 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Loosahatchie River Near Arlington
|
122cfs |
Hatchie River At Bolivar
|
933cfs |
South Fork Forked Deer River Near Owl City
|
524cfs |
Hatchie River At Rialto
|
1080cfs |
Wolf River At Lagrange
|
223cfs |
Wolf River At Rossville
|
508cfs |
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.
Mann